/** * WordPress environment setup class. * * @package WordPress * @since 2.0.0 */ class WP { /** * Public query variables. * * Long list of public query variables. * * @since 2.0.0 * @access public * @var array */ var $public_query_vars = array('m', 'p', 'posts', 'w', 'cat', 'withcomments', 'withoutcomments', 's', 'search', 'exact', 'sentence', 'debug', 'calendar', 'page', 'paged', 'more', 'tb', 'pb', 'author', 'order', 'orderby', 'year', 'monthnum', 'day', 'hour', 'minute', 'second', 'name', 'category_name', 'tag', 'feed', 'author_name', 'static', 'pagename', 'page_id', 'error', 'comments_popup', 'attachment', 'attachment_id', 'subpost', 'subpost_id', 'preview', 'robots', 'taxonomy', 'term', 'cpage', 'post_type'); /** * Private query variables. * * Long list of private query variables. * * @since 2.0.0 * @var array */ var $private_query_vars = array('offset', 'posts_per_page', 'posts_per_archive_page', 'showposts', 'nopaging', 'post_type', 'post_status', 'category__in', 'category__not_in', 'category__and', 'tag__in', 'tag__not_in', 'tag__and', 'tag_slug__in', 'tag_slug__and', 'tag_id', 'post_mime_type', 'perm', 'comments_per_page', 'post__in', 'post__not_in'); /** * Extra query variables set by the user. * * @since 2.1.0 * @var array */ var $extra_query_vars = array(); /** * Query variables for setting up the WordPress Query Loop. * * @since 2.0.0 * @var array */ var $query_vars; /** * String parsed to set the query variables. * * @since 2.0.0 * @var string */ var $query_string; /** * Permalink or requested URI. * * @since 2.0.0 * @var string */ var $request; /** * Rewrite rule the request matched. * * @since 2.0.0 * @var string */ var $matched_rule; /** * Rewrite query the request matched. * * @since 2.0.0 * @var string */ var $matched_query; /** * Whether already did the permalink. * * @since 2.0.0 * @var bool */ var $did_permalink = false; /** * Add name to list of public query variables. * * @since 2.1.0 * * @param string $qv Query variable name. */ function add_query_var($qv) { if ( !in_array($qv, $this->public_query_vars) ) $this->public_query_vars[] = $qv; } /** * Set the value of a query variable. * * @since 2.3.0 * * @param string $key Query variable name. * @param mixed $value Query variable value. */ function set_query_var($key, $value) { $this->query_vars[$key] = $value; } /** * Parse request to find correct WordPress query. * * Sets up the query variables based on the request. There are also many * filters and actions that can be used to further manipulate the result. * * @since 2.0.0 * * @param array|string $extra_query_vars Set the extra query variables. */ function parse_request($extra_query_vars = '') { global $wp_rewrite; $this->query_vars = array(); $post_type_query_vars = array(); if ( is_array($extra_query_vars) ) $this->extra_query_vars = & $extra_query_vars; else if (! empty($extra_query_vars)) parse_str($extra_query_vars, $this->extra_query_vars); // Process PATH_INFO, REQUEST_URI, and 404 for permalinks. // Fetch the rewrite rules. $rewrite = $wp_rewrite->wp_rewrite_rules(); if ( ! empty($rewrite) ) { // If we match a rewrite rule, this will be cleared. $error = '404'; $this->did_permalink = true; if ( isset($_SERVER['PATH_INFO']) ) $pathinfo = $_SERVER['PATH_INFO']; else $pathinfo = ''; $pathinfo_array = explode('?', $pathinfo); $pathinfo = str_replace("%", "%25", $pathinfo_array[0]); $req_uri = $_SERVER['REQUEST_URI']; $req_uri_array = explode('?', $req_uri); $req_uri = $req_uri_array[0]; $self = $_SERVER['PHP_SELF']; $home_path = parse_url(home_url()); if ( isset($home_path['path']) ) $home_path = $home_path['path']; else $home_path = ''; $home_path = trim($home_path, '/'); // Trim path info from the end and the leading home path from the // front. For path info requests, this leaves us with the requesting // filename, if any. For 404 requests, this leaves us with the // requested permalink. $req_uri = str_replace($pathinfo, '', $req_uri); $req_uri = trim($req_uri, '/'); $req_uri = preg_replace("|^$home_path|", '', $req_uri); $req_uri = trim($req_uri, '/'); $pathinfo = trim($pathinfo, '/'); $pathinfo = preg_replace("|^$home_path|", '', $pathinfo); $pathinfo = trim($pathinfo, '/'); $self = trim($self, '/'); $self = preg_replace("|^$home_path|", '', $self); $self = trim($self, '/'); // The requested permalink is in $pathinfo for path info requests and // $req_uri for other requests. if ( ! empty($pathinfo) && !preg_match('|^.*' . $wp_rewrite->index . '$|', $pathinfo) ) { $request = $pathinfo; } else { // If the request uri is the index, blank it out so that we don't try to match it against a rule. if ( $req_uri == $wp_rewrite->index ) $req_uri = ''; $request = $req_uri; } $this->request = $request; // Look for matches. $request_match = $request; foreach ( (array) $rewrite as $match => $query) { // Don't try to match against AtomPub calls if ( $req_uri == 'wp-app.php' ) break; // If the requesting file is the anchor of the match, prepend it // to the path info. if ( (! empty($req_uri)) && (strpos($match, $req_uri) === 0) && ($req_uri != $request) ) $request_match = $req_uri . '/' . $request; if ( preg_match("#^$match#", $request_match, $matches) || preg_match("#^$match#", urldecode($request_match), $matches) ) { // Got a match. $this->matched_rule = $match; // Trim the query of everything up to the '?'. $query = preg_replace("!^.+\?!", '', $query); // Substitute the substring matches into the query. $query = addslashes(WP_MatchesMapRegex::apply($query, $matches)); $this->matched_query = $query; // Parse the query. parse_str($query, $perma_query_vars); // If we're processing a 404 request, clear the error var // since we found something. if ( isset($_GET['error']) ) unset($_GET['error']); if ( isset($error) ) unset($error); break; } } // If req_uri is empty or if it is a request for ourself, unset error. if ( empty($request) || $req_uri == $self || strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false ) { if ( isset($_GET['error']) ) unset($_GET['error']); if ( isset($error) ) unset($error); if ( isset($perma_query_vars) && strpos($_SERVER['PHP_SELF'], 'wp-admin/') !== false ) unset($perma_query_vars); $this->did_permalink = false; } } $this->public_query_vars = apply_filters('query_vars', $this->public_query_vars); foreach ( $GLOBALS['wp_post_types'] as $post_type => $t ) if ( $t->query_var ) $post_type_query_vars[$t->query_var] = $post_type; foreach ( $this->public_query_vars as $wpvar ) { if ( isset( $this->extra_query_vars[$wpvar] ) ) $this->query_vars[$wpvar] = $this->extra_query_vars[$wpvar]; elseif ( isset( $_POST[$wpvar] ) ) $this->query_vars[$wpvar] = $_POST[$wpvar]; elseif ( isset( $_GET[$wpvar] ) ) $this->query_vars[$wpvar] = $_GET[$wpvar]; elseif ( isset( $perma_query_vars[$wpvar] ) ) $this->query_vars[$wpvar] = $perma_query_vars[$wpvar]; if ( !empty( $this->query_vars[$wpvar] ) ) { if ( ! is_array( $this->query_vars[$wpvar] ) ) { $this->query_vars[$wpvar] = (string) $this->query_vars[$wpvar]; } else { foreach ( $this->query_vars[$wpvar] as $vkey => $v ) { if ( !is_object( $v ) ) { $this->query_vars[$wpvar][$vkey] = (string) $v; } } } if ( isset($post_type_query_vars[$wpvar] ) ) { $this->query_vars['post_type'] = $post_type_query_vars[$wpvar]; $this->query_vars['name'] = $this->query_vars[$wpvar]; } } } // Convert urldecoded spaces back into + foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) if ( $t->query_var && isset( $this->query_vars[$t->query_var] ) ) $this->query_vars[$t->query_var] = str_replace( ' ', '+', $this->query_vars[$t->query_var] ); // Limit publicly queried post_types to those that are publicly_queryable if ( isset( $this->query_vars['post_type']) ) { $queryable_post_types = get_post_types( array('publicly_queryable' => true) ); if ( ! is_array( $this->query_vars['post_type'] ) ) { if ( ! in_array( $this->query_vars['post_type'], $queryable_post_types ) ) unset( $this->query_vars['post_type'] ); } else { $this->query_vars['post_type'] = array_intersect( $this->query_vars['post_type'], $queryable_post_types ); } } foreach ( (array) $this->private_query_vars as $var) { if ( isset($this->extra_query_vars[$var]) ) $this->query_vars[$var] = $this->extra_query_vars[$var]; } if ( isset($error) ) $this->query_vars['error'] = $error; $this->query_vars = apply_filters('request', $this->query_vars); do_action_ref_array('parse_request', array(&$this)); } /** * Send additional HTTP headers for caching, content type, etc. * * Sets the X-Pingback header, 404 status (if 404), Content-type. If showing * a feed, it will also send last-modified, etag, and 304 status if needed. * * @since 2.0.0 */ function send_headers() { $headers = array('X-Pingback' => get_bloginfo('pingback_url')); $status = null; $exit_required = false; if ( is_user_logged_in() ) $headers = array_merge($headers, wp_get_nocache_headers()); if ( !empty($this->query_vars['error']) && '404' == $this->query_vars['error'] ) { $status = 404; if ( !is_user_logged_in() ) $headers = array_merge($headers, wp_get_nocache_headers()); $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset'); } else if ( empty($this->query_vars['feed']) ) { $headers['Content-Type'] = get_option('html_type') . '; charset=' . get_option('blog_charset'); } else { // We're showing a feed, so WP is indeed the only thing that last changed if ( !empty($this->query_vars['withcomments']) || ( empty($this->query_vars['withoutcomments']) && ( !empty($this->query_vars['p']) || !empty($this->query_vars['name']) || !empty($this->query_vars['page_id']) || !empty($this->query_vars['pagename']) || !empty($this->query_vars['attachment']) || !empty($this->query_vars['attachment_id']) ) ) ) $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastcommentmodified('GMT'), 0).' GMT'; else $wp_last_modified = mysql2date('D, d M Y H:i:s', get_lastpostmodified('GMT'), 0).' GMT'; $wp_etag = '"' . md5($wp_last_modified) . '"'; $headers['Last-Modified'] = $wp_last_modified; $headers['ETag'] = $wp_etag; // Support for Conditional GET if (isset($_SERVER['HTTP_IF_NONE_MATCH'])) $client_etag = stripslashes(stripslashes($_SERVER['HTTP_IF_NONE_MATCH'])); else $client_etag = false; $client_last_modified = empty($_SERVER['HTTP_IF_MODIFIED_SINCE']) ? '' : trim($_SERVER['HTTP_IF_MODIFIED_SINCE']); // If string is empty, return 0. If not, attempt to parse into a timestamp $client_modified_timestamp = $client_last_modified ? strtotime($client_last_modified) : 0; // Make a timestamp for our most recent modification... $wp_modified_timestamp = strtotime($wp_last_modified); if ( ($client_last_modified && $client_etag) ? (($client_modified_timestamp >= $wp_modified_timestamp) && ($client_etag == $wp_etag)) : (($client_modified_timestamp >= $wp_modified_timestamp) || ($client_etag == $wp_etag)) ) { $status = 304; $exit_required = true; } } $headers = apply_filters('wp_headers', $headers, $this); if ( ! empty( $status ) ) status_header( $status ); foreach( (array) $headers as $name => $field_value ) @header("{$name}: {$field_value}"); if ( $exit_required ) exit(); do_action_ref_array('send_headers', array(&$this)); } /** * Sets the query string property based off of the query variable property. * * The 'query_string' filter is deprecated, but still works. Plugins should * use the 'request' filter instead. * * @since 2.0.0 */ function build_query_string() { $this->query_string = ''; foreach ( (array) array_keys($this->query_vars) as $wpvar) { if ( '' != $this->query_vars[$wpvar] ) { $this->query_string .= (strlen($this->query_string) < 1) ? '' : '&'; if ( !is_scalar($this->query_vars[$wpvar]) ) // Discard non-scalars. continue; $this->query_string .= $wpvar . '=' . rawurlencode($this->query_vars[$wpvar]); } } // query_string filter deprecated. Use request filter instead. if ( has_filter('query_string') ) { // Don't bother filtering and parsing if no plugins are hooked in. $this->query_string = apply_filters('query_string', $this->query_string); parse_str($this->query_string, $this->query_vars); } } /** * Set up the WordPress Globals. * * The query_vars property will be extracted to the GLOBALS. So care should * be taken when naming global variables that might interfere with the * WordPress environment. * * @global string $query_string Query string for the loop. * @global int $more Only set, if single page or post. * @global int $single If single page or post. Only set, if single page or post. * * @since 2.0.0 */ function register_globals() { global $wp_query; // Extract updated query vars back into global namespace. foreach ( (array) $wp_query->query_vars as $key => $value) { $GLOBALS[$key] = $value; } $GLOBALS['query_string'] = $this->query_string; $GLOBALS['posts'] = & $wp_query->posts; $GLOBALS['post'] = (isset($wp_query->post)) ? $wp_query->post : null; $GLOBALS['request'] = $wp_query->request; if ( is_single() || is_page() ) { $GLOBALS['more'] = 1; $GLOBALS['single'] = 1; } } /** * Set up the current user. * * @since 2.0.0 */ function init() { wp_get_current_user(); } /** * Set up the Loop based on the query variables. * * @uses WP::$query_vars * @since 2.0.0 */ function query_posts() { global $wp_the_query; $this->build_query_string(); $wp_the_query->query($this->query_vars); } /** * Set the Headers for 404, if nothing is found for requested URL. * * Issue a 404 if a request doesn't match any posts and doesn't match * any object (e.g. an existing-but-empty category, tag, author) and a 404 was not already * issued, and if the request was not a search or the homepage. * * Otherwise, issue a 200. * * @since 2.0.0 */ function handle_404() { global $wp_query; if ( !is_admin() && ( 0 == count( $wp_query->posts ) ) && !is_404() && !is_robots() && !is_search() && !is_home() ) { // Don't 404 for these queries if they matched an object. if ( ( is_tag() || is_category() || is_tax() || is_author() || is_post_type_archive() ) && $wp_query->get_queried_object() && !is_paged() ) { if ( !is_404() ) status_header( 200 ); return; } $wp_query->set_404(); status_header( 404 ); nocache_headers(); } elseif ( !is_404() ) { status_header( 200 ); } } /** * Sets up all of the variables required by the WordPress environment. * * The action 'wp' has one parameter that references the WP object. It * allows for accessing the properties and methods to further manipulate the * object. * * @since 2.0.0 * * @param string|array $query_args Passed to {@link parse_request()} */ function main($query_args = '') { $this->init(); $this->parse_request($query_args); $this->send_headers(); $this->query_posts(); $this->handle_404(); $this->register_globals(); do_action_ref_array('wp', array(&$this)); } } /** * Helper class to remove the need to use eval to replace $matches[] in query strings. * * @since 2.9.0 */ class WP_MatchesMapRegex { /** * store for matches * * @access private * @var array */ var $_matches; /** * store for mapping result * * @access public * @var string */ var $output; /** * subject to perform mapping on (query string containing $matches[] references * * @access private * @var string */ var $_subject; /** * regexp pattern to match $matches[] references * * @var string */ var $_pattern = '(\$matches\[[1-9]+[0-9]*\])'; // magic number /** * constructor * * @param string $subject subject if regex * @param array $matches data to use in map * @return self */ function WP_MatchesMapRegex($subject, $matches) { $this->_subject = $subject; $this->_matches = $matches; $this->output = $this->_map(); } /** * Substitute substring matches in subject. * * static helper function to ease use * * @access public * @param string $subject subject * @param array $matches data used for subsitution * @return string */ function apply($subject, $matches) { $oSelf =& new WP_MatchesMapRegex($subject, $matches); return $oSelf->output; } /** * do the actual mapping * * @access private * @return string */ function _map() { $callback = array(&$this, 'callback'); return preg_replace_callback($this->_pattern, $callback, $this->_subject); } /** * preg_replace_callback hook * * @access public * @param array $matches preg_replace regexp matches * @return string */ function callback($matches) { $index = intval(substr($matches[0], 9, -1)); return ( isset( $this->_matches[$index] ) ? urlencode($this->_matches[$index]) : '' ); } } ?> /** * Post functions and post utility function. * * @package WordPress * @subpackage Post * @since 1.5.0 */ // // Post Type Registration // /** * Creates the initial post types when 'init' action is fired. * * @since 2.9.0 */ function create_initial_post_types() { register_post_type( 'post', array( 'labels' => array( 'name_admin_bar' => _x( 'Post', 'add new on admin bar' ), ), 'public' => true, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'map_meta_cap' => true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'excerpt', 'trackbacks', 'custom-fields', 'comments', 'revisions', 'post-formats' ), ) ); register_post_type( 'page', array( 'labels' => array( 'name_admin_bar' => _x( 'Page', 'add new on admin bar' ), ), 'public' => true, 'publicly_queryable' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'post.php?post=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'page', 'map_meta_cap' => true, 'hierarchical' => true, 'rewrite' => false, 'query_var' => false, 'supports' => array( 'title', 'editor', 'author', 'thumbnail', 'page-attributes', 'custom-fields', 'comments', 'revisions' ), ) ); register_post_type( 'attachment', array( 'labels' => array( 'name' => __( 'Media' ), ), 'public' => true, 'show_ui' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'media.php?attachment_id=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'map_meta_cap' => true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'show_in_nav_menus' => false, 'supports' => array( 'comments' ), ) ); register_post_type( 'revision', array( 'labels' => array( 'name' => __( 'Revisions' ), 'singular_name' => __( 'Revision' ), ), 'public' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ '_edit_link' => 'revision.php?revision=%d', /* internal use only. don't use this when registering your own post type. */ 'capability_type' => 'post', 'map_meta_cap' => true, 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, 'can_export' => false, ) ); register_post_type( 'nav_menu_item', array( 'labels' => array( 'name' => __( 'Navigation Menu Items' ), 'singular_name' => __( 'Navigation Menu Item' ), ), 'public' => false, '_builtin' => true, /* internal use only. don't use this when registering your own post type. */ 'hierarchical' => false, 'rewrite' => false, 'query_var' => false, ) ); register_post_status( 'publish', array( 'label' => _x( 'Published', 'post' ), 'public' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Published (%s)', 'Published (%s)' ), ) ); register_post_status( 'future', array( 'label' => _x( 'Scheduled', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop('Scheduled (%s)', 'Scheduled (%s)' ), ) ); register_post_status( 'draft', array( 'label' => _x( 'Draft', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Draft (%s)', 'Drafts (%s)' ), ) ); register_post_status( 'pending', array( 'label' => _x( 'Pending', 'post' ), 'protected' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Pending (%s)', 'Pending (%s)' ), ) ); register_post_status( 'private', array( 'label' => _x( 'Private', 'post' ), 'private' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Private (%s)', 'Private (%s)' ), ) ); register_post_status( 'trash', array( 'label' => _x( 'Trash', 'post' ), 'internal' => true, '_builtin' => true, /* internal use only. */ 'label_count' => _n_noop( 'Trash (%s)', 'Trash (%s)' ), 'show_in_admin_status_list' => true, ) ); register_post_status( 'auto-draft', array( 'label' => 'auto-draft', 'internal' => true, '_builtin' => true, /* internal use only. */ ) ); register_post_status( 'inherit', array( 'label' => 'inherit', 'internal' => true, '_builtin' => true, /* internal use only. */ 'exclude_from_search' => false, ) ); } add_action( 'init', 'create_initial_post_types', 0 ); // highest priority /** * Retrieve attached file path based on attachment ID. * * You can optionally send it through the 'get_attached_file' filter, but by * default it will just return the file path unfiltered. * * The function works by getting the single post meta name, named * '_wp_attached_file' and returning it. This is a convenience function to * prevent looking up the meta name and provide a mechanism for sending the * attached filename through a filter. * * @since 2.0.0 * @uses apply_filters() Calls 'get_attached_file' on file path and attachment ID. * * @param int $attachment_id Attachment ID. * @param bool $unfiltered Whether to apply filters. * @return string The file path to the attached file. */ function get_attached_file( $attachment_id, $unfiltered = false ) { $file = get_post_meta( $attachment_id, '_wp_attached_file', true ); // If the file is relative, prepend upload dir if ( 0 !== strpos($file, '/') && !preg_match('|^.:\\\|', $file) && ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) ) $file = $uploads['basedir'] . "/$file"; if ( $unfiltered ) return $file; return apply_filters( 'get_attached_file', $file, $attachment_id ); } /** * Update attachment file path based on attachment ID. * * Used to update the file path of the attachment, which uses post meta name * '_wp_attached_file' to store the path of the attachment. * * @since 2.1.0 * @uses apply_filters() Calls 'update_attached_file' on file path and attachment ID. * * @param int $attachment_id Attachment ID * @param string $file File path for the attachment * @return bool False on failure, true on success. */ function update_attached_file( $attachment_id, $file ) { if ( !get_post( $attachment_id ) ) return false; $file = apply_filters( 'update_attached_file', $file, $attachment_id ); $file = _wp_relative_upload_path($file); return update_post_meta( $attachment_id, '_wp_attached_file', $file ); } /** * Return relative path to an uploaded file. * * The path is relative to the current upload dir. * * @since 2.9.0 * @uses apply_filters() Calls '_wp_relative_upload_path' on file path. * * @param string $path Full path to the file * @return string relative path on success, unchanged path on failure. */ function _wp_relative_upload_path( $path ) { $new_path = $path; if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) { if ( 0 === strpos($new_path, $uploads['basedir']) ) { $new_path = str_replace($uploads['basedir'], '', $new_path); $new_path = ltrim($new_path, '/'); } } return apply_filters( '_wp_relative_upload_path', $new_path, $path ); } /** * Retrieve all children of the post parent ID. * * Normally, without any enhancements, the children would apply to pages. In the * context of the inner workings of WordPress, pages, posts, and attachments * share the same table, so therefore the functionality could apply to any one * of them. It is then noted that while this function does not work on posts, it * does not mean that it won't work on posts. It is recommended that you know * what context you wish to retrieve the children of. * * Attachments may also be made the child of a post, so if that is an accurate * statement (which needs to be verified), it would then be possible to get * all of the attachments for a post. Attachments have since changed since * version 2.5, so this is most likely unaccurate, but serves generally as an * example of what is possible. * * The arguments listed as defaults are for this function and also of the * {@link get_posts()} function. The arguments are combined with the * get_children defaults and are then passed to the {@link get_posts()} * function, which accepts additional arguments. You can replace the defaults in * this function, listed below and the additional arguments listed in the * {@link get_posts()} function. * * The 'post_parent' is the most important argument and important attention * needs to be paid to the $args parameter. If you pass either an object or an * integer (number), then just the 'post_parent' is grabbed and everything else * is lost. If you don't specify any arguments, then it is assumed that you are * in The Loop and the post parent will be grabbed for from the current post. * * The 'post_parent' argument is the ID to get the children. The 'numberposts' * is the amount of posts to retrieve that has a default of '-1', which is * used to get all of the posts. Giving a number higher than 0 will only * retrieve that amount of posts. * * The 'post_type' and 'post_status' arguments can be used to choose what * criteria of posts to retrieve. The 'post_type' can be anything, but WordPress * post types are 'post', 'pages', and 'attachments'. The 'post_status' * argument will accept any post status within the write administration panels. * * @see get_posts() Has additional arguments that can be replaced. * @internal Claims made in the long description might be inaccurate. * * @since 2.0.0 * * @param mixed $args Optional. User defined arguments for replacing the defaults. * @param string $output Optional. Constant for return type, either OBJECT (default), ARRAY_A, ARRAY_N. * @return array|bool False on failure and the type will be determined by $output parameter. */ function get_children($args = '', $output = OBJECT) { $kids = array(); if ( empty( $args ) ) { if ( isset( $GLOBALS['post'] ) ) { $args = array('post_parent' => (int) $GLOBALS['post']->post_parent ); } else { return $kids; } } elseif ( is_object( $args ) ) { $args = array('post_parent' => (int) $args->post_parent ); } elseif ( is_numeric( $args ) ) { $args = array('post_parent' => (int) $args); } $defaults = array( 'numberposts' => -1, 'post_type' => 'any', 'post_status' => 'any', 'post_parent' => 0, ); $r = wp_parse_args( $args, $defaults ); $children = get_posts( $r ); if ( !$children ) return $kids; update_post_cache($children); foreach ( $children as $key => $child ) $kids[$child->ID] = $children[$key]; if ( $output == OBJECT ) { return $kids; } elseif ( $output == ARRAY_A ) { foreach ( (array) $kids as $kid ) $weeuns[$kid->ID] = get_object_vars($kids[$kid->ID]); return $weeuns; } elseif ( $output == ARRAY_N ) { foreach ( (array) $kids as $kid ) $babes[$kid->ID] = array_values(get_object_vars($kids[$kid->ID])); return $babes; } else { return $kids; } } /** * Get extended entry info (). * * There should not be any space after the second dash and before the word * 'more'. There can be text or space(s) after the word 'more', but won't be * referenced. * * The returned array has 'main' and 'extended' keys. Main has the text before * the . The 'extended' key has the content after the * comment. * * @since 1.0.0 * * @param string $post Post content. * @return array Post before ('main') and after ('extended'). */ function get_extended($post) { //Match the new style more links if ( preg_match('//', $post, $matches) ) { list($main, $extended) = explode($matches[0], $post, 2); } else { $main = $post; $extended = ''; } // Strip leading and trailing whitespace $main = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $main); $extended = preg_replace('/^[\s]*(.*)[\s]*$/', '\\1', $extended); return array('main' => $main, 'extended' => $extended); } /** * Retrieves post data given a post ID or post object. * * See {@link sanitize_post()} for optional $filter values. Also, the parameter * $post, must be given as a variable, since it is passed by reference. * * @since 1.5.1 * @uses $wpdb * @link http://codex.wordpress.org/Function_Reference/get_post * * @param int|object $post Post ID or post object. * @param string $output Optional, default is Object. Either OBJECT, ARRAY_A, or ARRAY_N. * @param string $filter Optional, default is raw. * @return mixed Post data */ function &get_post(&$post, $output = OBJECT, $filter = 'raw') { global $wpdb; $null = null; if ( empty($post) ) { if ( isset($GLOBALS['post']) ) $_post = & $GLOBALS['post']; else return $null; } elseif ( is_object($post) && empty($post->filter) ) { _get_post_ancestors($post); $_post = sanitize_post($post, 'raw'); wp_cache_add($post->ID, $_post, 'posts'); } else { if ( is_object($post) ) $post_id = $post->ID; else $post_id = $post; $post_id = (int) $post_id; if ( ! $_post = wp_cache_get($post_id, 'posts') ) { $_post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d LIMIT 1", $post_id)); if ( ! $_post ) return $null; _get_post_ancestors($_post); $_post = sanitize_post($_post, 'raw'); wp_cache_add($_post->ID, $_post, 'posts'); } } if ($filter != 'raw') $_post = sanitize_post($_post, $filter); if ( $output == OBJECT ) { return $_post; } elseif ( $output == ARRAY_A ) { $__post = get_object_vars($_post); return $__post; } elseif ( $output == ARRAY_N ) { $__post = array_values(get_object_vars($_post)); return $__post; } else { return $_post; } } /** * Retrieve ancestors of a post. * * @since 2.5.0 * * @param int|object $post Post ID or post object * @return array Ancestor IDs or empty array if none are found. */ function get_post_ancestors($post) { $post = get_post($post); if ( !empty($post->ancestors) ) return $post->ancestors; return array(); } /** * Retrieve data from a post field based on Post ID. * * Examples of the post field will be, 'post_type', 'post_status', 'content', * etc and based off of the post object property or key names. * * The context values are based off of the taxonomy filter functions and * supported values are found within those functions. * * @since 2.3.0 * @uses sanitize_post_field() See for possible $context values. * * @param string $field Post field name * @param id $post Post ID * @param string $context Optional. How to filter the field. Default is display. * @return WP_Error|string Value in post field or WP_Error on failure */ function get_post_field( $field, $post, $context = 'display' ) { $post = (int) $post; $post = get_post( $post ); if ( is_wp_error($post) ) return $post; if ( !is_object($post) ) return ''; if ( !isset($post->$field) ) return ''; return sanitize_post_field($field, $post->$field, $post->ID, $context); } /** * Retrieve the mime type of an attachment based on the ID. * * This function can be used with any post type, but it makes more sense with * attachments. * * @since 2.0.0 * * @param int $ID Optional. Post ID. * @return bool|string False on failure or returns the mime type */ function get_post_mime_type($ID = '') { $post = & get_post($ID); if ( is_object($post) ) return $post->post_mime_type; return false; } /** * Retrieve the format slug for a post * * @since 3.1.0 * * @param int|object $post A post * * @return mixed The format if successful. False if no format is set. WP_Error if errors. */ function get_post_format( $post = null ) { $post = get_post($post); if ( ! post_type_supports( $post->post_type, 'post-formats' ) ) return false; $_format = get_the_terms( $post->ID, 'post_format' ); if ( empty( $_format ) ) return false; $format = array_shift( $_format ); return ( str_replace('post-format-', '', $format->slug ) ); } /** * Check if a post has a particular format * * @since 3.1.0 * @uses has_term() * * @param string $format The format to check for * @param object|id $post The post to check. If not supplied, defaults to the current post if used in the loop. * @return bool True if the post has the format, false otherwise. */ function has_post_format( $format, $post = null ) { return has_term('post-format-' . sanitize_key($format), 'post_format', $post); } /** * Assign a format to a post * * @since 3.1.0 * * @param int|object $post The post for which to assign a format * @param string $format A format to assign. Use an empty string or array to remove all formats from the post. * @return mixed WP_Error on error. Array of affected term IDs on success. */ function set_post_format( $post, $format ) { $post = get_post($post); if ( empty($post) ) return new WP_Error('invalid_post', __('Invalid post')); if ( !empty($format) ) { $format = sanitize_key($format); if ( 'standard' == $format || !in_array( $format, array_keys( get_post_format_slugs() ) ) ) $format = ''; else $format = 'post-format-' . $format; } return wp_set_post_terms($post->ID, $format, 'post_format'); } /** * Retrieve the post status based on the Post ID. * * If the post ID is of an attachment, then the parent post status will be given * instead. * * @since 2.0.0 * * @param int $ID Post ID * @return string|bool Post status or false on failure. */ function get_post_status($ID = '') { $post = get_post($ID); if ( !is_object($post) ) return false; if ( 'attachment' == $post->post_type ) { if ( 'private' == $post->post_status ) return 'private'; // Unattached attachments are assumed to be published if ( ( 'inherit' == $post->post_status ) && ( 0 == $post->post_parent) ) return 'publish'; // Inherit status from the parent if ( $post->post_parent && ( $post->ID != $post->post_parent ) ) return get_post_status($post->post_parent); } return $post->post_status; } /** * Retrieve all of the WordPress supported post statuses. * * Posts have a limited set of valid status values, this provides the * post_status values and descriptions. * * @since 2.5.0 * * @return array List of post statuses. */ function get_post_statuses( ) { $status = array( 'draft' => __('Draft'), 'pending' => __('Pending Review'), 'private' => __('Private'), 'publish' => __('Published') ); return $status; } /** * Retrieve all of the WordPress support page statuses. * * Pages have a limited set of valid status values, this provides the * post_status values and descriptions. * * @since 2.5.0 * * @return array List of page statuses. */ function get_page_statuses( ) { $status = array( 'draft' => __('Draft'), 'private' => __('Private'), 'publish' => __('Published') ); return $status; } /** * Register a post type. Do not use before init. * * A simple function for creating or modifying a post status based on the * parameters given. The function will accept an array (second optional * parameter), along with a string for the post status name. * * * Optional $args contents: * * label - A descriptive name for the post status marked for translation. Defaults to $post_status. * public - Whether posts of this status should be shown in the front end of the site. Defaults to true. * exclude_from_search - Whether to exclude posts with this post status from search results. Defaults to false. * show_in_admin_all_list - Whether to include posts in the edit listing for their post type * show_in_admin_status_list - Show in the list of statuses with post counts at the top of the edit * listings, e.g. All (12) | Published (9) | My Custom Status (2) ... * * Arguments prefixed with an _underscore shouldn't be used by plugins and themes. * * @package WordPress * @subpackage Post * @since 3.0.0 * @uses $wp_post_statuses Inserts new post status object into the list * * @param string $post_status Name of the post status. * @param array|string $args See above description. */ function register_post_status($post_status, $args = array()) { global $wp_post_statuses; if (!is_array($wp_post_statuses)) $wp_post_statuses = array(); // Args prefixed with an underscore are reserved for internal use. $defaults = array('label' => false, 'label_count' => false, 'exclude_from_search' => null, '_builtin' => false, '_edit_link' => 'post.php?post=%d', 'capability_type' => 'post', 'hierarchical' => false, 'public' => null, 'internal' => null, 'protected' => null, 'private' => null, 'show_in_admin_all' => null, 'publicly_queryable' => null, 'show_in_admin_status_list' => null, 'show_in_admin_all_list' => null, 'single_view_cap' => null); $args = wp_parse_args($args, $defaults); $args = (object) $args; $post_status = sanitize_key($post_status); $args->name = $post_status; if ( null === $args->public && null === $args->internal && null === $args->protected && null === $args->private ) $args->internal = true; if ( null === $args->public ) $args->public = false; if ( null === $args->private ) $args->private = false; if ( null === $args->protected ) $args->protected = false; if ( null === $args->internal ) $args->internal = false; if ( null === $args->publicly_queryable ) $args->publicly_queryable = $args->public; if ( null === $args->exclude_from_search ) $args->exclude_from_search = $args->internal; if ( null === $args->show_in_admin_all_list ) $args->show_in_admin_all_list = !$args->internal; if ( null === $args->show_in_admin_status_list ) $args->show_in_admin_status_list = !$args->internal; if ( null === $args->single_view_cap ) $args->single_view_cap = $args->public ? '' : 'edit'; if ( false === $args->label ) $args->label = $post_status; if ( false === $args->label_count ) $args->label_count = array( $args->label, $args->label ); $wp_post_statuses[$post_status] = $args; return $args; } /** * Retrieve a post status object by name * * @package WordPress * @subpackage Post * @since 3.0.0 * @uses $wp_post_statuses * @see register_post_status * @see get_post_statuses * * @param string $post_status The name of a registered post status * @return object A post status object */ function get_post_status_object( $post_status ) { global $wp_post_statuses; if ( empty($wp_post_statuses[$post_status]) ) return null; return $wp_post_statuses[$post_status]; } /** * Get a list of all registered post status objects. * * @package WordPress * @subpackage Post * @since 3.0.0 * @uses $wp_post_statuses * @see register_post_status * @see get_post_status_object * * @param array|string $args An array of key => value arguments to match against the post status objects. * @param string $output The type of output to return, either post status 'names' or 'objects'. 'names' is the default. * @param string $operator The logical operation to perform. 'or' means only one element * from the array needs to match; 'and' means all elements must match. The default is 'and'. * @return array A list of post type names or objects */ function get_post_stati( $args = array(), $output = 'names', $operator = 'and' ) { global $wp_post_statuses; $field = ('names' == $output) ? 'name' : false; return wp_filter_object_list($wp_post_statuses, $args, $operator, $field); } /** * Whether the post type is hierarchical. * * A false return value might also mean that the post type does not exist. * * @since 3.0.0 * @see get_post_type_object * * @param string $post_type Post type name * @return bool Whether post type is hierarchical. */ function is_post_type_hierarchical( $post_type ) { if ( ! post_type_exists( $post_type ) ) return false; $post_type = get_post_type_object( $post_type ); return $post_type->hierarchical; } /** * Checks if a post type is registered. * * @since 3.0.0 * @uses get_post_type_object() * * @param string $post_type Post type name * @return bool Whether post type is registered. */ function post_type_exists( $post_type ) { return (bool) get_post_type_object( $post_type ); } /** * Retrieve the post type of the current post or of a given post. * * @since 2.1.0 * * @uses $post The Loop current post global * * @param mixed $the_post Optional. Post object or post ID. * @return bool|string post type or false on failure. */ function get_post_type( $the_post = false ) { global $post; if ( false === $the_post ) $the_post = $post; elseif ( is_numeric($the_post) ) $the_post = get_post($the_post); if ( is_object($the_post) ) return $the_post->post_type; return false; } /** * Retrieve a post type object by name * * @package WordPress * @subpackage Post * @since 3.0.0 * @uses $wp_post_types * @see register_post_type * @see get_post_types * * @param string $post_type The name of a registered post type * @return object A post type object */ function get_post_type_object( $post_type ) { global $wp_post_types; if ( empty($wp_post_types[$post_type]) ) return null; return $wp_post_types[$post_type]; } /** * Get a list of all registered post type objects. * * @package WordPress * @subpackage Post * @since 2.9.0 * @uses $wp_post_types * @see register_post_type * * @param array|string $args An array of key => value arguments to match against the post type objects. * @param string $output The type of output to return, either post type 'names' or 'objects'. 'names' is the default. * @param string $operator The logical operation to perform. 'or' means only one element * from the array needs to match; 'and' means all elements must match. The default is 'and'. * @return array A list of post type names or objects */ function get_post_types( $args = array(), $output = 'names', $operator = 'and' ) { global $wp_post_types; $field = ('names' == $output) ? 'name' : false; return wp_filter_object_list($wp_post_types, $args, $operator, $field); } /** * Register a post type. Do not use before init. * * A function for creating or modifying a post type based on the * parameters given. The function will accept an array (second optional * parameter), along with a string for the post type name. * * Optional $args contents: * * - label - Name of the post type shown in the menu. Usually plural. If not set, labels['name'] will be used. * - description - A short descriptive summary of what the post type is. Defaults to blank. * - public - Whether posts of this type should be shown in the admin UI. Defaults to false. * - exclude_from_search - Whether to exclude posts with this post type from search results. * Defaults to true if the type is not public, false if the type is public. * - publicly_queryable - Whether post_type queries can be performed from the front page. * Defaults to whatever public is set as. * - show_ui - Whether to generate a default UI for managing this post type. Defaults to true * if the type is public, false if the type is not public. * - show_in_menu - Where to show the post type in the admin menu. True for a top level menu, * false for no menu, or can be a top level page like 'tools.php' or 'edit.php?post_type=page'. * show_ui must be true. * - menu_position - The position in the menu order the post type should appear. Defaults to the bottom. * - menu_icon - The url to the icon to be used for this menu. Defaults to use the posts icon. * - capability_type - The string to use to build the read, edit, and delete capabilities. Defaults to 'post'. * May be passed as an array to allow for alternative plurals when using this argument as a base to construct the * capabilities, e.g. array('story', 'stories'). * - capabilities - Array of capabilities for this post type. By default the capability_type is used * as a base to construct capabilities. You can see accepted values in {@link get_post_type_capabilities()}. * - map_meta_cap - Whether to use the internal default meta capability handling. Defaults to false. * - hierarchical - Whether the post type is hierarchical. Defaults to false. * - supports - An alias for calling add_post_type_support() directly. See {@link add_post_type_support()} * for documentation. Defaults to none. * - register_meta_box_cb - Provide a callback function that will be called when setting up the * meta boxes for the edit form. Do remove_meta_box() and add_meta_box() calls in the callback. * - taxonomies - An array of taxonomy identifiers that will be registered for the post type. * Default is no taxonomies. Taxonomies can be registered later with register_taxonomy() or * register_taxonomy_for_object_type(). * - labels - An array of labels for this post type. By default post labels are used for non-hierarchical * types and page labels for hierarchical ones. You can see accepted values in {@link get_post_type_labels()}. * - permalink_epmask - The default rewrite endpoint bitmasks. * - has_archive - True to enable post type archives. Will generate the proper rewrite rules if rewrite is enabled. * - rewrite - false to prevent rewrite. Defaults to true. Use array('slug'=>$slug) to customize permastruct; * default will use $post_type as slug. Other options include 'with_front', 'feeds', and 'pages'. * - query_var - false to prevent queries, or string to value of the query var to use for this post type * - can_export - true allows this post type to be exported. * - show_in_nav_menus - true makes this post type available for selection in navigation menus. * - _builtin - true if this post type is a native or "built-in" post_type. THIS IS FOR INTERNAL USE ONLY! * - _edit_link - URL segement to use for edit link of this post type. THIS IS FOR INTERNAL USE ONLY! * * @since 2.9.0 * @uses $wp_post_types Inserts new post type object into the list * * @param string $post_type Name of the post type. * @param array|string $args See above description. * @return object|WP_Error the registered post type object, or an error object */ function register_post_type($post_type, $args = array()) { global $wp_post_types, $wp_rewrite, $wp; if ( !is_array($wp_post_types) ) $wp_post_types = array(); // Args prefixed with an underscore are reserved for internal use. $defaults = array( 'labels' => array(), 'description' => '', 'publicly_queryable' => null, 'exclude_from_search' => null, 'capability_type' => 'post', 'capabilities' => array(), 'map_meta_cap' => null, '_builtin' => false, '_edit_link' => 'post.php?post=%d', 'hierarchical' => false, 'public' => false, 'rewrite' => true, 'has_archive' => false, 'query_var' => true, 'supports' => array(), 'register_meta_box_cb' => null, 'taxonomies' => array(), 'show_ui' => null, 'menu_position' => null, 'menu_icon' => null, 'permalink_epmask' => EP_PERMALINK, 'can_export' => true, 'show_in_nav_menus' => null, 'show_in_menu' => null, 'show_in_admin_bar' => null, ); $args = wp_parse_args($args, $defaults); $args = (object) $args; $post_type = sanitize_key($post_type); $args->name = $post_type; if ( strlen( $post_type ) > 20 ) return new WP_Error( 'post_type_too_long', __( 'Post types cannot exceed 20 characters in length' ) ); // If not set, default to the setting for public. if ( null === $args->publicly_queryable ) $args->publicly_queryable = $args->public; // If not set, default to the setting for public. if ( null === $args->show_ui ) $args->show_ui = $args->public; // If not set, default to the setting for show_ui. if ( null === $args->show_in_menu || ! $args->show_ui ) $args->show_in_menu = $args->show_ui; // If not set, default to the whether the full UI is shown. if ( null === $args->show_in_admin_bar ) $args->show_in_admin_bar = true === $args->show_in_menu; // Whether to show this type in nav-menus.php. Defaults to the setting for public. if ( null === $args->show_in_nav_menus ) $args->show_in_nav_menus = $args->public; // If not set, default to true if not public, false if public. if ( null === $args->exclude_from_search ) $args->exclude_from_search = !$args->public; // Back compat with quirky handling in version 3.0. #14122 if ( empty( $args->capabilities ) && null === $args->map_meta_cap && in_array( $args->capability_type, array( 'post', 'page' ) ) ) $args->map_meta_cap = true; if ( null === $args->map_meta_cap ) $args->map_meta_cap = false; $args->cap = get_post_type_capabilities( $args ); unset($args->capabilities); if ( is_array( $args->capability_type ) ) $args->capability_type = $args->capability_type[0]; if ( ! empty($args->supports) ) { add_post_type_support($post_type, $args->supports); unset($args->supports); } else { // Add default features add_post_type_support($post_type, array('title', 'editor')); } if ( false !== $args->query_var && !empty($wp) ) { if ( true === $args->query_var ) $args->query_var = $post_type; $args->query_var = sanitize_title_with_dashes($args->query_var); $wp->add_query_var($args->query_var); } if ( false !== $args->rewrite && '' != get_option('permalink_structure') ) { if ( ! is_array( $args->rewrite ) ) $args->rewrite = array(); if ( empty( $args->rewrite['slug'] ) ) $args->rewrite['slug'] = $post_type; if ( ! isset( $args->rewrite['with_front'] ) ) $args->rewrite['with_front'] = true; if ( ! isset( $args->rewrite['pages'] ) ) $args->rewrite['pages'] = true; if ( ! isset( $args->rewrite['feeds'] ) || ! $args->has_archive ) $args->rewrite['feeds'] = (bool) $args->has_archive; if ( $args->hierarchical ) $wp_rewrite->add_rewrite_tag("%$post_type%", '(.+?)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&name="); else $wp_rewrite->add_rewrite_tag("%$post_type%", '([^/]+)', $args->query_var ? "{$args->query_var}=" : "post_type=$post_type&name="); if ( $args->has_archive ) { $archive_slug = $args->has_archive === true ? $args->rewrite['slug'] : $args->has_archive; if ( $args->rewrite['with_front'] ) $archive_slug = substr( $wp_rewrite->front, 1 ) . $archive_slug; else $archive_slug = $wp_rewrite->root . $archive_slug; $wp_rewrite->add_rule( "{$archive_slug}/?$", "index.php?post_type=$post_type", 'top' ); if ( $args->rewrite['feeds'] && $wp_rewrite->feeds ) { $feeds = '(' . trim( implode( '|', $wp_rewrite->feeds ) ) . ')'; $wp_rewrite->add_rule( "{$archive_slug}/feed/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' ); $wp_rewrite->add_rule( "{$archive_slug}/$feeds/?$", "index.php?post_type=$post_type" . '&feed=$matches[1]', 'top' ); } if ( $args->rewrite['pages'] ) $wp_rewrite->add_rule( "{$archive_slug}/{$wp_rewrite->pagination_base}/([0-9]{1,})/?$", "index.php?post_type=$post_type" . '&paged=$matches[1]', 'top' ); } $wp_rewrite->add_permastruct($post_type, "{$args->rewrite['slug']}/%$post_type%", $args->rewrite['with_front'], $args->permalink_epmask); } if ( $args->register_meta_box_cb ) add_action('add_meta_boxes_' . $post_type, $args->register_meta_box_cb, 10, 1); $args->labels = get_post_type_labels( $args ); $args->label = $args->labels->name; $wp_post_types[$post_type] = $args; add_action( 'future_' . $post_type, '_future_post_hook', 5, 2 ); foreach ( $args->taxonomies as $taxonomy ) { register_taxonomy_for_object_type( $taxonomy, $post_type ); } return $args; } /** * Builds an object with all post type capabilities out of a post type object * * Post type capabilities use the 'capability_type' argument as a base, if the * capability is not set in the 'capabilities' argument array or if the * 'capabilities' argument is not supplied. * * The capability_type argument can optionally be registered as an array, with * the first value being singular and the second plural, e.g. array('story, 'stories') * Otherwise, an 's' will be added to the value for the plural form. After * registration, capability_type will always be a string of the singular value. * * By default, seven keys are accepted as part of the capabilities array: * * - edit_post, read_post, and delete_post are meta capabilities, which are then * generally mapped to corresponding primitive capabilities depending on the * context, which would be the post being edited/read/deleted and the user or * role being checked. Thus these capabilities would generally not be granted * directly to users or roles. * * - edit_posts - Controls whether objects of this post type can be edited. * - edit_others_posts - Controls whether objects of this type owned by other users * can be edited. If the post type does not support an author, then this will * behave like edit_posts. * - publish_posts - Controls publishing objects of this post type. * - read_private_posts - Controls whether private objects can be read. * These four primitive capabilities are checked in core in various locations. * There are also seven other primitive capabilities which are not referenced * directly in core, except in map_meta_cap(), which takes the three aforementioned * meta capabilities and translates them into one or more primitive capabilities * that must then be checked against the user or role, depending on the context. * * - read - Controls whether objects of this post type can be read. * - delete_posts - Controls whether objects of this post type can be deleted. * - delete_private_posts - Controls whether private objects can be deleted. * - delete_published_posts - Controls whether published objects can be deleted. * - delete_others_posts - Controls whether objects owned by other users can be * can be deleted. If the post type does not support an author, then this will * behave like delete_posts. * - edit_private_posts - Controls whether private objects can be edited. * - edit_published_posts - Controls whether published objects can be edited. * * These additional capabilities are only used in map_meta_cap(). Thus, they are * only assigned by default if the post type is registered with the 'map_meta_cap' * argument set to true (default is false). * * @see map_meta_cap() * @since 3.0.0 * * @param object $args Post type registration arguments * @return object object with all the capabilities as member variables */ function get_post_type_capabilities( $args ) { if ( ! is_array( $args->capability_type ) ) $args->capability_type = array( $args->capability_type, $args->capability_type . 's' ); // Singular base for meta capabilities, plural base for primitive capabilities. list( $singular_base, $plural_base ) = $args->capability_type; $default_capabilities = array( // Meta capabilities 'edit_post' => 'edit_' . $singular_base, 'read_post' => 'read_' . $singular_base, 'delete_post' => 'delete_' . $singular_base, // Primitive capabilities used outside of map_meta_cap(): 'edit_posts' => 'edit_' . $plural_base, 'edit_others_posts' => 'edit_others_' . $plural_base, 'publish_posts' => 'publish_' . $plural_base, 'read_private_posts' => 'read_private_' . $plural_base, ); // Primitive capabilities used within map_meta_cap(): if ( $args->map_meta_cap ) { $default_capabilities_for_mapping = array( 'read' => 'read', 'delete_posts' => 'delete_' . $plural_base, 'delete_private_posts' => 'delete_private_' . $plural_base, 'delete_published_posts' => 'delete_published_' . $plural_base, 'delete_others_posts' => 'delete_others_' . $plural_base, 'edit_private_posts' => 'edit_private_' . $plural_base, 'edit_published_posts' => 'edit_published_' . $plural_base, ); $default_capabilities = array_merge( $default_capabilities, $default_capabilities_for_mapping ); } $capabilities = array_merge( $default_capabilities, $args->capabilities ); // Remember meta capabilities for future reference. if ( $args->map_meta_cap ) _post_type_meta_capabilities( $capabilities ); return (object) $capabilities; } /** * Stores or returns a list of post type meta caps for map_meta_cap(). * * @since 3.1.0 * @access private */ function _post_type_meta_capabilities( $capabilities = null ) { static $meta_caps = array(); if ( null === $capabilities ) return $meta_caps; foreach ( $capabilities as $core => $custom ) { if ( in_array( $core, array( 'read_post', 'delete_post', 'edit_post' ) ) ) $meta_caps[ $custom ] = $core; } } /** * Builds an object with all post type labels out of a post type object * * Accepted keys of the label array in the post type object: * - name - general name for the post type, usually plural. The same and overriden by $post_type_object->label. Default is Posts/Pages * - singular_name - name for one object of this post type. Default is Post/Page * - add_new - Default is Add New for both hierarchical and non-hierarchical types. When internationalizing this string, please use a {@link http://codex.wordpress.org/I18n_for_WordPress_Developers#Disambiguation_by_context gettext context} matching your post type. Example: _x('Add New', 'product'); * - add_new_item - Default is Add New Post/Add New Page * - edit_item - Default is Edit Post/Edit Page * - new_item - Default is New Post/New Page * - view_item - Default is View Post/View Page * - search_items - Default is Search Posts/Search Pages * - not_found - Default is No posts found/No pages found * - not_found_in_trash - Default is No posts found in Trash/No pages found in Trash * - parent_item_colon - This string isn't used on non-hierarchical types. In hierarchical ones the default is Parent Page: * * Above, the first default value is for non-hierarchical post types (like posts) and the second one is for hierarchical post types (like pages). * * @since 3.0.0 * @param object $post_type_object * @return object object with all the labels as member variables */ function get_post_type_labels( $post_type_object ) { $nohier_vs_hier_defaults = array( 'name' => array( _x('Posts', 'post type general name'), _x('Pages', 'post type general name') ), 'singular_name' => array( _x('Post', 'post type singular name'), _x('Page', 'post type singular name') ), 'add_new' => array( _x('Add New', 'post'), _x('Add New', 'page') ), 'add_new_item' => array( __('Add New Post'), __('Add New Page') ), 'edit_item' => array( __('Edit Post'), __('Edit Page') ), 'new_item' => array( __('New Post'), __('New Page') ), 'view_item' => array( __('View Post'), __('View Page') ), 'search_items' => array( __('Search Posts'), __('Search Pages') ), 'not_found' => array( __('No posts found.'), __('No pages found.') ), 'not_found_in_trash' => array( __('No posts found in Trash.'), __('No pages found in Trash.') ), 'parent_item_colon' => array( null, __('Parent Page:') ), 'all_items' => array( __( 'All Posts' ), __( 'All Pages' ) ) ); $nohier_vs_hier_defaults['menu_name'] = $nohier_vs_hier_defaults['name']; return _get_custom_object_labels( $post_type_object, $nohier_vs_hier_defaults ); } /** * Builds an object with custom-something object (post type, taxonomy) labels out of a custom-something object * * @access private * @since 3.0.0 */ function _get_custom_object_labels( $object, $nohier_vs_hier_defaults ) { if ( isset( $object->label ) && empty( $object->labels['name'] ) ) $object->labels['name'] = $object->label; if ( !isset( $object->labels['singular_name'] ) && isset( $object->labels['name'] ) ) $object->labels['singular_name'] = $object->labels['name']; if ( ! isset( $object->labels['name_admin_bar'] ) ) $object->labels['name_admin_bar'] = isset( $object->labels['singular_name'] ) ? $object->labels['singular_name'] : $object->name; if ( !isset( $object->labels['menu_name'] ) && isset( $object->labels['name'] ) ) $object->labels['menu_name'] = $object->labels['name']; if ( !isset( $object->labels['all_items'] ) && isset( $object->labels['menu_name'] ) ) $object->labels['all_items'] = $object->labels['menu_name']; foreach ( $nohier_vs_hier_defaults as $key => $value ) $defaults[$key] = $object->hierarchical ? $value[1] : $value[0]; $labels = array_merge( $defaults, $object->labels ); return (object)$labels; } /** * Adds submenus for post types. * * @access private * @since 3.1.0 */ function _add_post_type_submenus() { foreach ( get_post_types( array( 'show_ui' => true ) ) as $ptype ) { $ptype_obj = get_post_type_object( $ptype ); // Submenus only. if ( ! $ptype_obj->show_in_menu || $ptype_obj->show_in_menu === true ) continue; add_submenu_page( $ptype_obj->show_in_menu, $ptype_obj->labels->name, $ptype_obj->labels->all_items, $ptype_obj->cap->edit_posts, "edit.php?post_type=$ptype" ); } } add_action( 'admin_menu', '_add_post_type_submenus' ); /** * Register support of certain features for a post type. * * All features are directly associated with a functional area of the edit screen, such as the * editor or a meta box: 'title', 'editor', 'comments', 'revisions', 'trackbacks', 'author', * 'excerpt', 'page-attributes', 'thumbnail', and 'custom-fields'. * * Additionally, the 'revisions' feature dictates whether the post type will store revisions, * and the 'comments' feature dicates whether the comments count will show on the edit screen. * * @since 3.0.0 * @param string $post_type The post type for which to add the feature * @param string|array $feature the feature being added, can be an array of feature strings or a single string */ function add_post_type_support( $post_type, $feature ) { global $_wp_post_type_features; $features = (array) $feature; foreach ($features as $feature) { if ( func_num_args() == 2 ) $_wp_post_type_features[$post_type][$feature] = true; else $_wp_post_type_features[$post_type][$feature] = array_slice( func_get_args(), 2 ); } } /** * Remove support for a feature from a post type. * * @since 3.0.0 * @param string $post_type The post type for which to remove the feature * @param string $feature The feature being removed */ function remove_post_type_support( $post_type, $feature ) { global $_wp_post_type_features; if ( !isset($_wp_post_type_features[$post_type]) ) return; if ( isset($_wp_post_type_features[$post_type][$feature]) ) unset($_wp_post_type_features[$post_type][$feature]); } /** * Checks a post type's support for a given feature * * @since 3.0.0 * @param string $post_type The post type being checked * @param string $feature the feature being checked * @return boolean */ function post_type_supports( $post_type, $feature ) { global $_wp_post_type_features; if ( !isset( $_wp_post_type_features[$post_type][$feature] ) ) return false; // If no args passed then no extra checks need be performed if ( func_num_args() <= 2 ) return true; // @todo Allow pluggable arg checking //$args = array_slice( func_get_args(), 2 ); return true; } /** * Updates the post type for the post ID. * * The page or post cache will be cleaned for the post ID. * * @since 2.5.0 * * @uses $wpdb * * @param int $post_id Post ID to change post type. Not actually optional. * @param string $post_type Optional, default is post. Supported values are 'post' or 'page' to * name a few. * @return int Amount of rows changed. Should be 1 for success and 0 for failure. */ function set_post_type( $post_id = 0, $post_type = 'post' ) { global $wpdb; $post_type = sanitize_post_field('post_type', $post_type, $post_id, 'db'); $return = $wpdb->update($wpdb->posts, array('post_type' => $post_type), array('ID' => $post_id) ); if ( 'page' == $post_type ) clean_page_cache($post_id); else clean_post_cache($post_id); return $return; } /** * Retrieve list of latest posts or posts matching criteria. * * The defaults are as follows: * 'numberposts' - Default is 5. Total number of posts to retrieve. * 'offset' - Default is 0. See {@link WP_Query::query()} for more. * 'category' - What category to pull the posts from. * 'orderby' - Default is 'post_date'. How to order the posts. * 'order' - Default is 'DESC'. The order to retrieve the posts. * 'include' - See {@link WP_Query::query()} for more. * 'exclude' - See {@link WP_Query::query()} for more. * 'meta_key' - See {@link WP_Query::query()} for more. * 'meta_value' - See {@link WP_Query::query()} for more. * 'post_type' - Default is 'post'. Can be 'page', or 'attachment' to name a few. * 'post_parent' - The parent of the post or post type. * 'post_status' - Default is 'publish'. Post status to retrieve. * * @since 1.2.0 * @uses $wpdb * @uses WP_Query::query() See for more default arguments and information. * @link http://codex.wordpress.org/Template_Tags/get_posts * * @param array $args Optional. Overrides defaults. * @return array List of posts. */ function get_posts($args = null) { $defaults = array( 'numberposts' => 5, 'offset' => 0, 'category' => 0, 'orderby' => 'post_date', 'order' => 'DESC', 'include' => array(), 'exclude' => array(), 'meta_key' => '', 'meta_value' =>'', 'post_type' => 'post', 'suppress_filters' => true ); $r = wp_parse_args( $args, $defaults ); if ( empty( $r['post_status'] ) ) $r['post_status'] = ( 'attachment' == $r['post_type'] ) ? 'inherit' : 'publish'; if ( ! empty($r['numberposts']) && empty($r['posts_per_page']) ) $r['posts_per_page'] = $r['numberposts']; if ( ! empty($r['category']) ) $r['cat'] = $r['category']; if ( ! empty($r['include']) ) { $incposts = wp_parse_id_list( $r['include'] ); $r['posts_per_page'] = count($incposts); // only the number of posts included $r['post__in'] = $incposts; } elseif ( ! empty($r['exclude']) ) $r['post__not_in'] = wp_parse_id_list( $r['exclude'] ); $r['ignore_sticky_posts'] = true; $r['no_found_rows'] = true; $get_posts = new WP_Query; return $get_posts->query($r); } // // Post meta functions // /** * Add meta data field to a post. * * Post meta data is called "Custom Fields" on the Administration Screen. * * @since 1.5.0 * @uses $wpdb * @link http://codex.wordpress.org/Function_Reference/add_post_meta * * @param int $post_id Post ID. * @param string $meta_key Metadata name. * @param mixed $meta_value Metadata value. * @param bool $unique Optional, default is false. Whether the same key should not be added. * @return bool False for failure. True for success. */ function add_post_meta($post_id, $meta_key, $meta_value, $unique = false) { // make sure meta is added to the post, not a revision if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return add_metadata('post', $post_id, $meta_key, $meta_value, $unique); } /** * Remove metadata matching criteria from a post. * * You can match based on the key, or key and value. Removing based on key and * value, will keep from removing duplicate metadata with the same key. It also * allows removing all metadata matching key, if needed. * * @since 1.5.0 * @uses $wpdb * @link http://codex.wordpress.org/Function_Reference/delete_post_meta * * @param int $post_id post ID * @param string $meta_key Metadata name. * @param mixed $meta_value Optional. Metadata value. * @return bool False for failure. True for success. */ function delete_post_meta($post_id, $meta_key, $meta_value = '') { // make sure meta is added to the post, not a revision if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return delete_metadata('post', $post_id, $meta_key, $meta_value); } /** * Retrieve post meta field for a post. * * @since 1.5.0 * @uses $wpdb * @link http://codex.wordpress.org/Function_Reference/get_post_meta * * @param int $post_id Post ID. * @param string $key The meta key to retrieve. * @param bool $single Whether to return a single value. * @return mixed Will be an array if $single is false. Will be value of meta data field if $single * is true. */ function get_post_meta($post_id, $key, $single = false) { return get_metadata('post', $post_id, $key, $single); } /** * Update post meta field based on post ID. * * Use the $prev_value parameter to differentiate between meta fields with the * same key and post ID. * * If the meta field for the post does not exist, it will be added. * * @since 1.5.0 * @uses $wpdb * @link http://codex.wordpress.org/Function_Reference/update_post_meta * * @param int $post_id Post ID. * @param string $meta_key Metadata key. * @param mixed $meta_value Metadata value. * @param mixed $prev_value Optional. Previous value to check before removing. * @return bool False on failure, true if success. */ function update_post_meta($post_id, $meta_key, $meta_value, $prev_value = '') { // make sure meta is added to the post, not a revision if ( $the_post = wp_is_post_revision($post_id) ) $post_id = $the_post; return update_metadata('post', $post_id, $meta_key, $meta_value, $prev_value); } /** * Delete everything from post meta matching meta key. * * @since 2.3.0 * @uses $wpdb * * @param string $post_meta_key Key to search for when deleting. * @return bool Whether the post meta key was deleted from the database */ function delete_post_meta_by_key($post_meta_key) { if ( !$post_meta_key ) return false; global $wpdb; $post_ids = $wpdb->get_col($wpdb->prepare("SELECT DISTINCT post_id FROM $wpdb->postmeta WHERE meta_key = %s", $post_meta_key)); if ( $post_ids ) { $postmetaids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = %s", $post_meta_key ) ); $in = implode( ',', array_fill(1, count($postmetaids), '%d')); do_action( 'delete_postmeta', $postmetaids ); $wpdb->query( $wpdb->prepare("DELETE FROM $wpdb->postmeta WHERE meta_id IN($in)", $postmetaids )); do_action( 'deleted_postmeta', $postmetaids ); foreach ( $post_ids as $post_id ) wp_cache_delete($post_id, 'post_meta'); return true; } return false; } /** * Retrieve post meta fields, based on post ID. * * The post meta fields are retrieved from the cache, so the function is * optimized to be called more than once. It also applies to the functions, that * use this function. * * @since 1.2.0 * @link http://codex.wordpress.org/Function_Reference/get_post_custom * * @uses $id Current Loop Post ID * * @param int $post_id post ID * @return array */ function get_post_custom( $post_id = 0 ) { $post_id = absint( $post_id ); if ( ! $post_id ) $post_id = get_the_ID(); if ( ! wp_cache_get( $post_id, 'post_meta' ) ) update_postmeta_cache( $post_id ); return wp_cache_get( $post_id, 'post_meta' ); } /** * Retrieve meta field names for a post. * * If there are no meta fields, then nothing (null) will be returned. * * @since 1.2.0 * @link http://codex.wordpress.org/Function_Reference/get_post_custom_keys * * @param int $post_id post ID * @return array|null Either array of the keys, or null if keys could not be retrieved. */ function get_post_custom_keys( $post_id = 0 ) { $custom = get_post_custom( $post_id ); if ( !is_array($custom) ) return; if ( $keys = array_keys($custom) ) return $keys; } /** * Retrieve values for a custom post field. * * The parameters must not be considered optional. All of the post meta fields * will be retrieved and only the meta field key values returned. * * @since 1.2.0 * @link http://codex.wordpress.org/Function_Reference/get_post_custom_values * * @param string $key Meta field key. * @param int $post_id Post ID * @return array Meta field values. */ function get_post_custom_values( $key = '', $post_id = 0 ) { if ( !$key ) return null; $custom = get_post_custom($post_id); return isset($custom[$key]) ? $custom[$key] : null; } /** * Check if post is sticky. * * Sticky posts should remain at the top of The Loop. If the post ID is not * given, then The Loop ID for the current post will be used. * * @since 2.7.0 * * @param int $post_id Optional. Post ID. * @return bool Whether post is sticky. */ function is_sticky( $post_id = 0 ) { $post_id = absint( $post_id ); if ( ! $post_id ) $post_id = get_the_ID(); $stickies = get_option( 'sticky_posts' ); if ( ! is_array( $stickies ) ) return false; if ( in_array( $post_id, $stickies ) ) return true; return false; } /** * Sanitize every post field. * * If the context is 'raw', then the post object or array will get minimal santization of the int fields. * * @since 2.3.0 * @uses sanitize_post_field() Used to sanitize the fields. * * @param object|array $post The Post Object or Array * @param string $context Optional, default is 'display'. How to sanitize post fields. * @return object|array The now sanitized Post Object or Array (will be the same type as $post) */ function sanitize_post($post, $context = 'display') { if ( is_object($post) ) { // Check if post already filtered for this context if ( isset($post->filter) && $context == $post->filter ) return $post; if ( !isset($post->ID) ) $post->ID = 0; foreach ( array_keys(get_object_vars($post)) as $field ) $post->$field = sanitize_post_field($field, $post->$field, $post->ID, $context); $post->filter = $context; } else { // Check if post already filtered for this context if ( isset($post['filter']) && $context == $post['filter'] ) return $post; if ( !isset($post['ID']) ) $post['ID'] = 0; foreach ( array_keys($post) as $field ) $post[$field] = sanitize_post_field($field, $post[$field], $post['ID'], $context); $post['filter'] = $context; } return $post; } /** * Sanitize post field based on context. * * Possible context values are: 'raw', 'edit', 'db', 'display', 'attribute' and 'js'. The * 'display' context is used by default. 'attribute' and 'js' contexts are treated like 'display' * when calling filters. * * @since 2.3.0 * @uses apply_filters() Calls 'edit_$field' and '{$field_no_prefix}_edit_pre' passing $value and * $post_id if $context == 'edit' and field name prefix == 'post_'. * * @uses apply_filters() Calls 'edit_post_$field' passing $value and $post_id if $context == 'db'. * @uses apply_filters() Calls 'pre_$field' passing $value if $context == 'db' and field name prefix == 'post_'. * @uses apply_filters() Calls '{$field}_pre' passing $value if $context == 'db' and field name prefix != 'post_'. * * @uses apply_filters() Calls '$field' passing $value, $post_id and $context if $context == anything * other than 'raw', 'edit' and 'db' and field name prefix == 'post_'. * @uses apply_filters() Calls 'post_$field' passing $value if $context == anything other than 'raw', * 'edit' and 'db' and field name prefix != 'post_'. * * @param string $field The Post Object field name. * @param mixed $value The Post Object value. * @param int $post_id Post ID. * @param string $context How to sanitize post fields. Looks for 'raw', 'edit', 'db', 'display', * 'attribute' and 'js'. * @return mixed Sanitized value. */ function sanitize_post_field($field, $value, $post_id, $context) { $int_fields = array('ID', 'post_parent', 'menu_order'); if ( in_array($field, $int_fields) ) $value = (int) $value; // Fields which contain arrays of ints. $array_int_fields = array( 'ancestors' ); if ( in_array($field, $array_int_fields) ) { $value = array_map( 'absint', $value); return $value; } if ( 'raw' == $context ) return $value; $prefixed = false; if ( false !== strpos($field, 'post_') ) { $prefixed = true; $field_no_prefix = str_replace('post_', '', $field); } if ( 'edit' == $context ) { $format_to_edit = array('post_content', 'post_excerpt', 'post_title', 'post_password'); if ( $prefixed ) { $value = apply_filters("edit_{$field}", $value, $post_id); // Old school $value = apply_filters("{$field_no_prefix}_edit_pre", $value, $post_id); } else { $value = apply_filters("edit_post_{$field}", $value, $post_id); } if ( in_array($field, $format_to_edit) ) { if ( 'post_content' == $field ) $value = format_to_edit($value, user_can_richedit()); else $value = format_to_edit($value); } else { $value = esc_attr($value); } } else if ( 'db' == $context ) { if ( $prefixed ) { $value = apply_filters("pre_{$field}", $value); $value = apply_filters("{$field_no_prefix}_save_pre", $value); } else { $value = apply_filters("pre_post_{$field}", $value); $value = apply_filters("{$field}_pre", $value); } } else { // Use display filters by default. if ( $prefixed ) $value = apply_filters($field, $value, $post_id, $context); else $value = apply_filters("post_{$field}", $value, $post_id, $context); } if ( 'attribute' == $context ) $value = esc_attr($value); else if ( 'js' == $context ) $value = esc_js($value); return $value; } /** * Make a post sticky. * * Sticky posts should be displayed at the top of the front page. * * @since 2.7.0 * * @param int $post_id Post ID. */ function stick_post($post_id) { $stickies = get_option('sticky_posts'); if ( !is_array($stickies) ) $stickies = array($post_id); if ( ! in_array($post_id, $stickies) ) $stickies[] = $post_id; update_option('sticky_posts', $stickies); } /** * Unstick a post. * * Sticky posts should be displayed at the top of the front page. * * @since 2.7.0 * * @param int $post_id Post ID. */ function unstick_post($post_id) { $stickies = get_option('sticky_posts'); if ( !is_array($stickies) ) return; if ( ! in_array($post_id, $stickies) ) return; $offset = array_search($post_id, $stickies); if ( false === $offset ) return; array_splice($stickies, $offset, 1); update_option('sticky_posts', $stickies); } /** * Count number of posts of a post type and is user has permissions to view. * * This function provides an efficient method of finding the amount of post's * type a blog has. Another method is to count the amount of items in * get_posts(), but that method has a lot of overhead with doing so. Therefore, * when developing for 2.5+, use this function instead. * * The $perm parameter checks for 'readable' value and if the user can read * private posts, it will display that for the user that is signed in. * * @since 2.5.0 * @link http://codex.wordpress.org/Template_Tags/wp_count_posts * * @param string $type Optional. Post type to retrieve count * @param string $perm Optional. 'readable' or empty. * @return object Number of posts for each status */ function wp_count_posts( $type = 'post', $perm = '' ) { global $wpdb; $user = wp_get_current_user(); $cache_key = $type; $query = "SELECT post_status, COUNT( * ) AS num_posts FROM {$wpdb->posts} WHERE post_type = %s"; if ( 'readable' == $perm && is_user_logged_in() ) { $post_type_object = get_post_type_object($type); if ( !current_user_can( $post_type_object->cap->read_private_posts ) ) { $cache_key .= '_' . $perm . '_' . $user->ID; $query .= " AND (post_status != 'private' OR ( post_author = '$user->ID' AND post_status = 'private' ))"; } } $query .= ' GROUP BY post_status'; $count = wp_cache_get($cache_key, 'counts'); if ( false !== $count ) return $count; $count = $wpdb->get_results( $wpdb->prepare( $query, $type ), ARRAY_A ); $stats = array(); foreach ( get_post_stati() as $state ) $stats[$state] = 0; foreach ( (array) $count as $row ) $stats[$row['post_status']] = $row['num_posts']; $stats = (object) $stats; wp_cache_set($cache_key, $stats, 'counts'); return $stats; } /** * Count number of attachments for the mime type(s). * * If you set the optional mime_type parameter, then an array will still be * returned, but will only have the item you are looking for. It does not give * you the number of attachments that are children of a post. You can get that * by counting the number of children that post has. * * @since 2.5.0 * * @param string|array $mime_type Optional. Array or comma-separated list of MIME patterns. * @return array Number of posts for each mime type. */ function wp_count_attachments( $mime_type = '' ) { global $wpdb; $and = wp_post_mime_type_where( $mime_type ); $count = $wpdb->get_results( "SELECT post_mime_type, COUNT( * ) AS num_posts FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status != 'trash' $and GROUP BY post_mime_type", ARRAY_A ); $stats = array( ); foreach( (array) $count as $row ) { $stats[$row['post_mime_type']] = $row['num_posts']; } $stats['trash'] = $wpdb->get_var( "SELECT COUNT( * ) FROM $wpdb->posts WHERE post_type = 'attachment' AND post_status = 'trash' $and"); return (object) $stats; } /** * Check a MIME-Type against a list. * * If the wildcard_mime_types parameter is a string, it must be comma separated * list. If the real_mime_types is a string, it is also comma separated to * create the list. * * @since 2.5.0 * * @param string|array $wildcard_mime_types e.g. audio/mpeg or image (same as image/*) or * flash (same as *flash*). * @param string|array $real_mime_types post_mime_type values * @return array array(wildcard=>array(real types)) */ function wp_match_mime_types($wildcard_mime_types, $real_mime_types) { $matches = array(); if ( is_string($wildcard_mime_types) ) $wildcard_mime_types = array_map('trim', explode(',', $wildcard_mime_types)); if ( is_string($real_mime_types) ) $real_mime_types = array_map('trim', explode(',', $real_mime_types)); $wild = '[-._a-z0-9]*'; foreach ( (array) $wildcard_mime_types as $type ) { $type = str_replace('*', $wild, $type); $patternses[1][$type] = "^$type$"; if ( false === strpos($type, '/') ) { $patternses[2][$type] = "^$type/"; $patternses[3][$type] = $type; } } asort($patternses); foreach ( $patternses as $patterns ) foreach ( $patterns as $type => $pattern ) foreach ( (array) $real_mime_types as $real ) if ( preg_match("#$pattern#", $real) && ( empty($matches[$type]) || false === array_search($real, $matches[$type]) ) ) $matches[$type][] = $real; return $matches; } /** * Convert MIME types into SQL. * * @since 2.5.0 * * @param string|array $post_mime_types List of mime types or comma separated string of mime types. * @param string $table_alias Optional. Specify a table alias, if needed. * @return string The SQL AND clause for mime searching. */ function wp_post_mime_type_where($post_mime_types, $table_alias = '') { $where = ''; $wildcards = array('', '%', '%/%'); if ( is_string($post_mime_types) ) $post_mime_types = array_map('trim', explode(',', $post_mime_types)); foreach ( (array) $post_mime_types as $mime_type ) { $mime_type = preg_replace('/\s/', '', $mime_type); $slashpos = strpos($mime_type, '/'); if ( false !== $slashpos ) { $mime_group = preg_replace('/[^-*.a-zA-Z0-9]/', '', substr($mime_type, 0, $slashpos)); $mime_subgroup = preg_replace('/[^-*.+a-zA-Z0-9]/', '', substr($mime_type, $slashpos + 1)); if ( empty($mime_subgroup) ) $mime_subgroup = '*'; else $mime_subgroup = str_replace('/', '', $mime_subgroup); $mime_pattern = "$mime_group/$mime_subgroup"; } else { $mime_pattern = preg_replace('/[^-*.a-zA-Z0-9]/', '', $mime_type); if ( false === strpos($mime_pattern, '*') ) $mime_pattern .= '/*'; } $mime_pattern = preg_replace('/\*+/', '%', $mime_pattern); if ( in_array( $mime_type, $wildcards ) ) return ''; if ( false !== strpos($mime_pattern, '%') ) $wheres[] = empty($table_alias) ? "post_mime_type LIKE '$mime_pattern'" : "$table_alias.post_mime_type LIKE '$mime_pattern'"; else $wheres[] = empty($table_alias) ? "post_mime_type = '$mime_pattern'" : "$table_alias.post_mime_type = '$mime_pattern'"; } if ( !empty($wheres) ) $where = ' AND (' . join(' OR ', $wheres) . ') '; return $where; } /** * Trashes or deletes a post or page. * * When the post and page is permanently deleted, everything that is tied to it is deleted also. * This includes comments, post meta fields, and terms associated with the post. * * The post or page is moved to trash instead of permanently deleted unless trash is * disabled, item is already in the trash, or $force_delete is true. * * @since 1.0.0 * @uses do_action() on 'delete_post' before deletion unless post type is 'attachment'. * @uses do_action() on 'deleted_post' after deletion unless post type is 'attachment'. * @uses wp_delete_attachment() if post type is 'attachment'. * @uses wp_trash_post() if item should be trashed. * * @param int $postid Post ID. * @param bool $force_delete Whether to bypass trash and force deletion. Defaults to false. * @return mixed False on failure */ function wp_delete_post( $postid = 0, $force_delete = false ) { global $wpdb, $wp_rewrite; if ( !$post = $wpdb->get_row($wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $postid)) ) return $post; if ( !$force_delete && ( $post->post_type == 'post' || $post->post_type == 'page') && get_post_status( $postid ) != 'trash' && EMPTY_TRASH_DAYS ) return wp_trash_post($postid); if ( $post->post_type == 'attachment' ) return wp_delete_attachment( $postid, $force_delete ); do_action('before_delete_post', $postid); delete_post_meta($postid,'_wp_trash_meta_status'); delete_post_meta($postid,'_wp_trash_meta_time'); wp_delete_object_term_relationships($postid, get_object_taxonomies($post->post_type)); $parent_data = array( 'post_parent' => $post->post_parent ); $parent_where = array( 'post_parent' => $postid ); if ( 'page' == $post->post_type) { // if the page is defined in option page_on_front or post_for_posts, // adjust the corresponding options if ( get_option('page_on_front') == $postid ) { update_option('show_on_front', 'posts'); delete_option('page_on_front'); } if ( get_option('page_for_posts') == $postid ) { delete_option('page_for_posts'); } // Point children of this page to its parent, also clean the cache of affected children $children_query = $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE post_parent = %d AND post_type='page'", $postid); $children = $wpdb->get_results($children_query); $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'page' ) ); } else { unstick_post($postid); } // Do raw query. wp_get_post_revisions() is filtered $revision_ids = $wpdb->get_col( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_parent = %d AND post_type = 'revision'", $postid ) ); // Use wp_delete_post (via wp_delete_post_revision) again. Ensures any meta/misplaced data gets cleaned up. foreach ( $revision_ids as $revision_id ) wp_delete_post_revision( $revision_id ); // Point all attachments to this post up one level $wpdb->update( $wpdb->posts, $parent_data, $parent_where + array( 'post_type' => 'attachment' ) ); $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $postid )); if ( ! empty($comment_ids) ) { do_action( 'delete_comment', $comment_ids ); foreach ( $comment_ids as $comment_id ) wp_delete_comment( $comment_id, true ); do_action( 'deleted_comment', $comment_ids ); } $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $postid )); if ( !empty($post_meta_ids) ) { do_action( 'delete_postmeta', $post_meta_ids ); $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; $wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_id IN($in_post_meta_ids)" ); do_action( 'deleted_postmeta', $post_meta_ids ); } do_action( 'delete_post', $postid ); $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $postid )); do_action( 'deleted_post', $postid ); if ( 'page' == $post->post_type ) { clean_page_cache($postid); foreach ( (array) $children as $child ) clean_page_cache($child->ID); $wp_rewrite->flush_rules(false); } else { clean_post_cache($postid); } wp_clear_scheduled_hook('publish_future_post', array( $postid ) ); do_action('after_delete_post', $postid); return $post; } /** * Moves a post or page to the Trash * * If trash is disabled, the post or page is permanently deleted. * * @since 2.9.0 * @uses do_action() on 'trash_post' before trashing * @uses do_action() on 'trashed_post' after trashing * @uses wp_delete_post() if trash is disabled * * @param int $post_id Post ID. * @return mixed False on failure */ function wp_trash_post($post_id = 0) { if ( !EMPTY_TRASH_DAYS ) return wp_delete_post($post_id, true); if ( !$post = wp_get_single_post($post_id, ARRAY_A) ) return $post; if ( $post['post_status'] == 'trash' ) return false; do_action('trash_post', $post_id); add_post_meta($post_id,'_wp_trash_meta_status', $post['post_status']); add_post_meta($post_id,'_wp_trash_meta_time', time()); $post['post_status'] = 'trash'; wp_insert_post($post); wp_trash_post_comments($post_id); do_action('trashed_post', $post_id); return $post; } /** * Restores a post or page from the Trash * * @since 2.9.0 * @uses do_action() on 'untrash_post' before undeletion * @uses do_action() on 'untrashed_post' after undeletion * * @param int $post_id Post ID. * @return mixed False on failure */ function wp_untrash_post($post_id = 0) { if ( !$post = wp_get_single_post($post_id, ARRAY_A) ) return $post; if ( $post['post_status'] != 'trash' ) return false; do_action('untrash_post', $post_id); $post_status = get_post_meta($post_id, '_wp_trash_meta_status', true); $post['post_status'] = $post_status; delete_post_meta($post_id, '_wp_trash_meta_status'); delete_post_meta($post_id, '_wp_trash_meta_time'); wp_insert_post($post); wp_untrash_post_comments($post_id); do_action('untrashed_post', $post_id); return $post; } /** * Moves comments for a post to the trash * * @since 2.9.0 * @uses do_action() on 'trash_post_comments' before trashing * @uses do_action() on 'trashed_post_comments' after trashing * * @param int $post Post ID or object. * @return mixed False on failure */ function wp_trash_post_comments($post = null) { global $wpdb; $post = get_post($post); if ( empty($post) ) return; $post_id = $post->ID; do_action('trash_post_comments', $post_id); $comments = $wpdb->get_results( $wpdb->prepare("SELECT comment_ID, comment_approved FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id) ); if ( empty($comments) ) return; // Cache current status for each comment $statuses = array(); foreach ( $comments as $comment ) $statuses[$comment->comment_ID] = $comment->comment_approved; add_post_meta($post_id, '_wp_trash_meta_comments_status', $statuses); // Set status for all comments to post-trashed $result = $wpdb->update($wpdb->comments, array('comment_approved' => 'post-trashed'), array('comment_post_ID' => $post_id)); clean_comment_cache( array_keys($statuses) ); do_action('trashed_post_comments', $post_id, $statuses); return $result; } /** * Restore comments for a post from the trash * * @since 2.9.0 * @uses do_action() on 'untrash_post_comments' before trashing * @uses do_action() on 'untrashed_post_comments' after trashing * * @param int $post Post ID or object. * @return mixed False on failure */ function wp_untrash_post_comments($post = null) { global $wpdb; $post = get_post($post); if ( empty($post) ) return; $post_id = $post->ID; $statuses = get_post_meta($post_id, '_wp_trash_meta_comments_status', true); if ( empty($statuses) ) return true; do_action('untrash_post_comments', $post_id); // Restore each comment to its original status $group_by_status = array(); foreach ( $statuses as $comment_id => $comment_status ) $group_by_status[$comment_status][] = $comment_id; foreach ( $group_by_status as $status => $comments ) { // Sanity check. This shouldn't happen. if ( 'post-trashed' == $status ) $status = '0'; $comments_in = implode( "', '", $comments ); $wpdb->query( "UPDATE $wpdb->comments SET comment_approved = '$status' WHERE comment_ID IN ('" . $comments_in . "')" ); } clean_comment_cache( array_keys($statuses) ); delete_post_meta($post_id, '_wp_trash_meta_comments_status'); do_action('untrashed_post_comments', $post_id); } /** * Retrieve the list of categories for a post. * * Compatibility layer for themes and plugins. Also an easy layer of abstraction * away from the complexity of the taxonomy layer. * * @since 2.1.0 * * @uses wp_get_object_terms() Retrieves the categories. Args details can be found here. * * @param int $post_id Optional. The Post ID. * @param array $args Optional. Overwrite the defaults. * @return array */ function wp_get_post_categories( $post_id = 0, $args = array() ) { $post_id = (int) $post_id; $defaults = array('fields' => 'ids'); $args = wp_parse_args( $args, $defaults ); $cats = wp_get_object_terms($post_id, 'category', $args); return $cats; } /** * Retrieve the tags for a post. * * There is only one default for this function, called 'fields' and by default * is set to 'all'. There are other defaults that can be overridden in * {@link wp_get_object_terms()}. * * @package WordPress * @subpackage Post * @since 2.3.0 * * @uses wp_get_object_terms() Gets the tags for returning. Args can be found here * * @param int $post_id Optional. The Post ID * @param array $args Optional. Overwrite the defaults * @return array List of post tags. */ function wp_get_post_tags( $post_id = 0, $args = array() ) { return wp_get_post_terms( $post_id, 'post_tag', $args); } /** * Retrieve the terms for a post. * * There is only one default for this function, called 'fields' and by default * is set to 'all'. There are other defaults that can be overridden in * {@link wp_get_object_terms()}. * * @package WordPress * @subpackage Post * @since 2.8.0 * * @uses wp_get_object_terms() Gets the tags for returning. Args can be found here * * @param int $post_id Optional. The Post ID * @param string $taxonomy The taxonomy for which to retrieve terms. Defaults to post_tag. * @param array $args Optional. Overwrite the defaults * @return array List of post tags. */ function wp_get_post_terms( $post_id = 0, $taxonomy = 'post_tag', $args = array() ) { $post_id = (int) $post_id; $defaults = array('fields' => 'all'); $args = wp_parse_args( $args, $defaults ); $tags = wp_get_object_terms($post_id, $taxonomy, $args); return $tags; } /** * Retrieve number of recent posts. * * @since 1.0.0 * @uses wp_parse_args() * @uses get_posts() * * @param string $deprecated Deprecated. * @param array $args Optional. Overrides defaults. * @param string $output Optional. * @return unknown. */ function wp_get_recent_posts( $args = array(), $output = ARRAY_A ) { if ( is_numeric( $args ) ) { _deprecated_argument( __FUNCTION__, '3.1', __( 'Passing an integer number of posts is deprecated. Pass an array of arguments instead.' ) ); $args = array( 'numberposts' => absint( $args ) ); } // Set default arguments $defaults = array( 'numberposts' => 10, 'offset' => 0, 'category' => 0, 'orderby' => 'post_date', 'order' => 'DESC', 'include' => '', 'exclude' => '', 'meta_key' => '', 'meta_value' =>'', 'post_type' => 'post', 'post_status' => 'draft, publish, future, pending, private', 'suppress_filters' => true ); $r = wp_parse_args( $args, $defaults ); $results = get_posts( $r ); // Backward compatibility. Prior to 3.1 expected posts to be returned in array if ( ARRAY_A == $output ){ foreach( $results as $key => $result ) { $results[$key] = get_object_vars( $result ); } return $results ? $results : array(); } return $results ? $results : false; } /** * Retrieve a single post, based on post ID. * * Has categories in 'post_category' property or key. Has tags in 'tags_input' * property or key. * * @since 1.0.0 * * @param int $postid Post ID. * @param string $mode How to return result, either OBJECT, ARRAY_N, or ARRAY_A. * @return object|array Post object or array holding post contents and information */ function wp_get_single_post($postid = 0, $mode = OBJECT) { $postid = (int) $postid; $post = get_post($postid, $mode); if ( ( OBJECT == $mode && empty( $post->ID ) ) || ( OBJECT != $mode && empty( $post['ID'] ) ) ) return ( OBJECT == $mode ? null : array() ); // Set categories and tags if ( $mode == OBJECT ) { $post->post_category = array(); if ( is_object_in_taxonomy($post->post_type, 'category') ) $post->post_category = wp_get_post_categories($postid); $post->tags_input = array(); if ( is_object_in_taxonomy($post->post_type, 'post_tag') ) $post->tags_input = wp_get_post_tags($postid, array('fields' => 'names')); } else { $post['post_category'] = array(); if ( is_object_in_taxonomy($post['post_type'], 'category') ) $post['post_category'] = wp_get_post_categories($postid); $post['tags_input'] = array(); if ( is_object_in_taxonomy($post['post_type'], 'post_tag') ) $post['tags_input'] = wp_get_post_tags($postid, array('fields' => 'names')); } return $post; } /** * Insert a post. * * If the $postarr parameter has 'ID' set to a value, then post will be updated. * * You can set the post date manually, but setting the values for 'post_date' * and 'post_date_gmt' keys. You can close the comments or open the comments by * setting the value for 'comment_status' key. * * The defaults for the parameter $postarr are: * 'post_status' - Default is 'draft'. * 'post_type' - Default is 'post'. * 'post_author' - Default is current user ID ($user_ID). The ID of the user who added the post. * 'ping_status' - Default is the value in 'default_ping_status' option. * Whether the attachment can accept pings. * 'post_parent' - Default is 0. Set this for the post it belongs to, if any. * 'menu_order' - Default is 0. The order it is displayed. * 'to_ping' - Whether to ping. * 'pinged' - Default is empty string. * 'post_password' - Default is empty string. The password to access the attachment. * 'guid' - Global Unique ID for referencing the attachment. * 'post_content_filtered' - Post content filtered. * 'post_excerpt' - Post excerpt. * * @since 1.0.0 * @uses $wpdb * @uses $wp_rewrite * @uses $user_ID * @uses do_action() Calls 'pre_post_update' on post ID if this is an update. * @uses do_action() Calls 'edit_post' action on post ID and post data if this is an update. * @uses do_action() Calls 'save_post' and 'wp_insert_post' on post id and post data just before returning. * @uses apply_filters() Calls 'wp_insert_post_data' passing $data, $postarr prior to database update or insert. * @uses wp_transition_post_status() * * @param array $postarr Elements that make up post to insert. * @param bool $wp_error Optional. Allow return of WP_Error on failure. * @return int|WP_Error The value 0 or WP_Error on failure. The post ID on success. */ function wp_insert_post($postarr, $wp_error = false) { global $wpdb, $wp_rewrite, $user_ID; $defaults = array('post_status' => 'draft', 'post_type' => 'post', 'post_author' => $user_ID, 'ping_status' => get_option('default_ping_status'), 'post_parent' => 0, 'menu_order' => 0, 'to_ping' => '', 'pinged' => '', 'post_password' => '', 'guid' => '', 'post_content_filtered' => '', 'post_excerpt' => '', 'import_id' => 0, 'post_content' => '', 'post_title' => ''); $postarr = wp_parse_args($postarr, $defaults); unset( $postarr[ 'filter' ] ); $postarr = sanitize_post($postarr, 'db'); // export array as variables extract($postarr, EXTR_SKIP); // Are we updating or creating? $update = false; if ( !empty($ID) ) { $update = true; $previous_status = get_post_field('post_status', $ID); } else { $previous_status = 'new'; } if ( ('' == $post_content) && ('' == $post_title) && ('' == $post_excerpt) && ('attachment' != $post_type) ) { if ( $wp_error ) return new WP_Error('empty_content', __('Content, title, and excerpt are empty.')); else return 0; } if ( empty($post_type) ) $post_type = 'post'; if ( empty($post_status) ) $post_status = 'draft'; if ( !empty($post_category) ) $post_category = array_filter($post_category); // Filter out empty terms // Make sure we set a valid category. if ( empty($post_category) || 0 == count($post_category) || !is_array($post_category) ) { // 'post' requires at least one category. if ( 'post' == $post_type && 'auto-draft' != $post_status ) $post_category = array( get_option('default_category') ); else $post_category = array(); } if ( empty($post_author) ) $post_author = $user_ID; $post_ID = 0; // Get the post ID and GUID if ( $update ) { $post_ID = (int) $ID; $guid = get_post_field( 'guid', $post_ID ); $post_before = get_post($post_ID); } // Don't allow contributors to set the post slug for pending review posts if ( 'pending' == $post_status && !current_user_can( 'publish_posts' ) ) $post_name = ''; // Create a valid post name. Drafts and pending posts are allowed to have an empty // post name. if ( empty($post_name) ) { if ( !in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) $post_name = sanitize_title($post_title); else $post_name = ''; } else { $post_name = sanitize_title($post_name); } // If the post date is empty (due to having been new or a draft) and status is not 'draft' or 'pending', set date to now if ( empty($post_date) || '0000-00-00 00:00:00' == $post_date ) $post_date = current_time('mysql'); if ( empty($post_date_gmt) || '0000-00-00 00:00:00' == $post_date_gmt ) { if ( !in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) $post_date_gmt = get_gmt_from_date($post_date); else $post_date_gmt = '0000-00-00 00:00:00'; } if ( $update || '0000-00-00 00:00:00' == $post_date ) { $post_modified = current_time( 'mysql' ); $post_modified_gmt = current_time( 'mysql', 1 ); } else { $post_modified = $post_date; $post_modified_gmt = $post_date_gmt; } if ( 'publish' == $post_status ) { $now = gmdate('Y-m-d H:i:59'); if ( mysql2date('U', $post_date_gmt, false) > mysql2date('U', $now, false) ) $post_status = 'future'; } elseif( 'future' == $post_status ) { $now = gmdate('Y-m-d H:i:59'); if ( mysql2date('U', $post_date_gmt, false) <= mysql2date('U', $now, false) ) $post_status = 'publish'; } if ( empty($comment_status) ) { if ( $update ) $comment_status = 'closed'; else $comment_status = get_option('default_comment_status'); } if ( empty($ping_status) ) $ping_status = get_option('default_ping_status'); if ( isset($to_ping) ) $to_ping = preg_replace('|\s+|', "\n", $to_ping); else $to_ping = ''; if ( ! isset($pinged) ) $pinged = ''; if ( isset($post_parent) ) $post_parent = (int) $post_parent; else $post_parent = 0; // Check the post_parent to see if it will cause a hierarchy loop $post_parent = apply_filters( 'wp_insert_post_parent', $post_parent, $post_ID, compact( array_keys( $postarr ) ), $postarr ); if ( isset($menu_order) ) $menu_order = (int) $menu_order; else $menu_order = 0; if ( !isset($post_password) || 'private' == $post_status ) $post_password = ''; $post_name = wp_unique_post_slug($post_name, $post_ID, $post_status, $post_type, $post_parent); // expected_slashed (everything!) $data = compact( array( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_content_filtered', 'post_title', 'post_excerpt', 'post_status', 'post_type', 'comment_status', 'ping_status', 'post_password', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_parent', 'menu_order', 'guid' ) ); $data = apply_filters('wp_insert_post_data', $data, $postarr); $data = stripslashes_deep( $data ); $where = array( 'ID' => $post_ID ); if ( $update ) { do_action( 'pre_post_update', $post_ID ); if ( false === $wpdb->update( $wpdb->posts, $data, $where ) ) { if ( $wp_error ) return new WP_Error('db_update_error', __('Could not update post in the database'), $wpdb->last_error); else return 0; } } else { if ( isset($post_mime_type) ) $data['post_mime_type'] = stripslashes( $post_mime_type ); // This isn't in the update // If there is a suggested ID, use it if not already present if ( !empty($import_id) ) { $import_id = (int) $import_id; if ( ! $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE ID = %d", $import_id) ) ) { $data['ID'] = $import_id; } } if ( false === $wpdb->insert( $wpdb->posts, $data ) ) { if ( $wp_error ) return new WP_Error('db_insert_error', __('Could not insert post into the database'), $wpdb->last_error); else return 0; } $post_ID = (int) $wpdb->insert_id; // use the newly generated $post_ID $where = array( 'ID' => $post_ID ); } if ( empty($data['post_name']) && !in_array( $data['post_status'], array( 'draft', 'pending', 'auto-draft' ) ) ) { $data['post_name'] = sanitize_title($data['post_title'], $post_ID); $wpdb->update( $wpdb->posts, array( 'post_name' => $data['post_name'] ), $where ); } if ( is_object_in_taxonomy($post_type, 'category') ) wp_set_post_categories( $post_ID, $post_category ); if ( isset( $tags_input ) && is_object_in_taxonomy($post_type, 'post_tag') ) wp_set_post_tags( $post_ID, $tags_input ); // new-style support for all custom taxonomies if ( !empty($tax_input) ) { foreach ( $tax_input as $taxonomy => $tags ) { $taxonomy_obj = get_taxonomy($taxonomy); if ( is_array($tags) ) // array = hierarchical, string = non-hierarchical. $tags = array_filter($tags); if ( current_user_can($taxonomy_obj->cap->assign_terms) ) wp_set_post_terms( $post_ID, $tags, $taxonomy ); } } $current_guid = get_post_field( 'guid', $post_ID ); if ( 'page' == $data['post_type'] ) clean_page_cache($post_ID); else clean_post_cache($post_ID); // Set GUID if ( !$update && '' == $current_guid ) $wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post_ID ) ), $where ); $post = get_post($post_ID); if ( !empty($page_template) && 'page' == $data['post_type'] ) { $post->page_template = $page_template; $page_templates = get_page_templates(); if ( 'default' != $page_template && !in_array($page_template, $page_templates) ) { if ( $wp_error ) return new WP_Error('invalid_page_template', __('The page template is invalid.')); else return 0; } update_post_meta($post_ID, '_wp_page_template', $page_template); } wp_transition_post_status($data['post_status'], $previous_status, $post); if ( $update ) { do_action('edit_post', $post_ID, $post); $post_after = get_post($post_ID); do_action( 'post_updated', $post_ID, $post_after, $post_before); } do_action('save_post', $post_ID, $post); do_action('wp_insert_post', $post_ID, $post); return $post_ID; } /** * Update a post with new post data. * * The date does not have to be set for drafts. You can set the date and it will * not be overridden. * * @since 1.0.0 * * @param array|object $postarr Post data. Arrays are expected to be escaped, objects are not. * @return int 0 on failure, Post ID on success. */ function wp_update_post($postarr = array()) { if ( is_object($postarr) ) { // non-escaped post was passed $postarr = get_object_vars($postarr); $postarr = add_magic_quotes($postarr); } // First, get all of the original fields $post = wp_get_single_post($postarr['ID'], ARRAY_A); // Escape data pulled from DB. $post = add_magic_quotes($post); // Passed post category list overwrites existing category list if not empty. if ( isset($postarr['post_category']) && is_array($postarr['post_category']) && 0 != count($postarr['post_category']) ) $post_cats = $postarr['post_category']; else $post_cats = $post['post_category']; // Drafts shouldn't be assigned a date unless explicitly done so by the user if ( isset( $post['post_status'] ) && in_array($post['post_status'], array('draft', 'pending', 'auto-draft')) && empty($postarr['edit_date']) && ('0000-00-00 00:00:00' == $post['post_date_gmt']) ) $clear_date = true; else $clear_date = false; // Merge old and new fields with new fields overwriting old ones. $postarr = array_merge($post, $postarr); $postarr['post_category'] = $post_cats; if ( $clear_date ) { $postarr['post_date'] = current_time('mysql'); $postarr['post_date_gmt'] = ''; } if ($postarr['post_type'] == 'attachment') return wp_insert_attachment($postarr); return wp_insert_post($postarr); } /** * Publish a post by transitioning the post status. * * @since 2.1.0 * @uses $wpdb * @uses do_action() Calls 'edit_post', 'save_post', and 'wp_insert_post' on post_id and post data. * * @param int $post_id Post ID. * @return null */ function wp_publish_post($post_id) { global $wpdb; $post = get_post($post_id); if ( empty($post) ) return; if ( 'publish' == $post->post_status ) return; $wpdb->update( $wpdb->posts, array( 'post_status' => 'publish' ), array( 'ID' => $post_id ) ); $old_status = $post->post_status; $post->post_status = 'publish'; wp_transition_post_status('publish', $old_status, $post); // Update counts for the post's terms. foreach ( (array) get_object_taxonomies('post') as $taxonomy ) { $tt_ids = wp_get_object_terms($post_id, $taxonomy, array('fields' => 'tt_ids')); wp_update_term_count($tt_ids, $taxonomy); } do_action('edit_post', $post_id, $post); do_action('save_post', $post_id, $post); do_action('wp_insert_post', $post_id, $post); } /** * Publish future post and make sure post ID has future post status. * * Invoked by cron 'publish_future_post' event. This safeguard prevents cron * from publishing drafts, etc. * * @since 2.5.0 * * @param int $post_id Post ID. * @return null Nothing is returned. Which can mean that no action is required or post was published. */ function check_and_publish_future_post($post_id) { $post = get_post($post_id); if ( empty($post) ) return; if ( 'future' != $post->post_status ) return; $time = strtotime( $post->post_date_gmt . ' GMT' ); if ( $time > time() ) { // Uh oh, someone jumped the gun! wp_clear_scheduled_hook( 'publish_future_post', array( $post_id ) ); // clear anything else in the system wp_schedule_single_event( $time, 'publish_future_post', array( $post_id ) ); return; } return wp_publish_post($post_id); } /** * Computes a unique slug for the post, when given the desired slug and some post details. * * @since 2.8.0 * * @global wpdb $wpdb * @global WP_Rewrite $wp_rewrite * @param string $slug the desired slug (post_name) * @param integer $post_ID * @param string $post_status no uniqueness checks are made if the post is still draft or pending * @param string $post_type * @param integer $post_parent * @return string unique slug for the post, based on $post_name (with a -1, -2, etc. suffix) */ function wp_unique_post_slug( $slug, $post_ID, $post_status, $post_type, $post_parent ) { if ( in_array( $post_status, array( 'draft', 'pending', 'auto-draft' ) ) ) return $slug; global $wpdb, $wp_rewrite; $feeds = $wp_rewrite->feeds; if ( ! is_array( $feeds ) ) $feeds = array(); $hierarchical_post_types = get_post_types( array('hierarchical' => true) ); if ( 'attachment' == $post_type ) { // Attachment slugs must be unique across all types. $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND ID != %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_ID ) ); if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_attachment_slug', false, $slug ) ) { $suffix = 2; do { $alt_post_name = substr ($slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare($check_sql, $alt_post_name, $post_ID ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } elseif ( in_array( $post_type, $hierarchical_post_types ) ) { // Page slugs must be unique within their own trees. Pages are in a separate // namespace than posts so page slugs are allowed to overlap post slugs. $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type IN ( '" . implode( "', '", esc_sql( $hierarchical_post_types ) ) . "' ) AND ID != %d AND post_parent = %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_ID, $post_parent ) ); if ( $post_name_check || in_array( $slug, $feeds ) || preg_match( "@^($wp_rewrite->pagination_base)?\d+$@", $slug ) || apply_filters( 'wp_unique_post_slug_is_bad_hierarchical_slug', false, $slug, $post_type, $post_parent ) ) { $suffix = 2; do { $alt_post_name = substr( $slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_ID, $post_parent ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } else { // Post slugs must be unique across all posts. $check_sql = "SELECT post_name FROM $wpdb->posts WHERE post_name = %s AND post_type = %s AND ID != %d LIMIT 1"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $slug, $post_type, $post_ID ) ); if ( $post_name_check || in_array( $slug, $feeds ) || apply_filters( 'wp_unique_post_slug_is_bad_flat_slug', false, $slug, $post_type ) ) { $suffix = 2; do { $alt_post_name = substr( $slug, 0, 200 - ( strlen( $suffix ) + 1 ) ) . "-$suffix"; $post_name_check = $wpdb->get_var( $wpdb->prepare( $check_sql, $alt_post_name, $post_type, $post_ID ) ); $suffix++; } while ( $post_name_check ); $slug = $alt_post_name; } } return $slug; } /** * Adds tags to a post. * * @uses wp_set_post_tags() Same first two parameters, but the last parameter is always set to true. * * @package WordPress * @subpackage Post * @since 2.3.0 * * @param int $post_id Post ID * @param string $tags The tags to set for the post, separated by commas. * @return bool|null Will return false if $post_id is not an integer or is 0. Will return null otherwise */ function wp_add_post_tags($post_id = 0, $tags = '') { return wp_set_post_tags($post_id, $tags, true); } /** * Set the tags for a post. * * @since 2.3.0 * @uses wp_set_object_terms() Sets the tags for the post. * * @param int $post_id Post ID. * @param string $tags The tags to set for the post, separated by commas. * @param bool $append If true, don't delete existing tags, just add on. If false, replace the tags with the new tags. * @return mixed Array of affected term IDs. WP_Error or false on failure. */ function wp_set_post_tags( $post_id = 0, $tags = '', $append = false ) { return wp_set_post_terms( $post_id, $tags, 'post_tag', $append); } /** * Set the terms for a post. * * @since 2.8.0 * @uses wp_set_object_terms() Sets the tags for the post. * * @param int $post_id Post ID. * @param string $tags The tags to set for the post, separated by commas. * @param bool $append If true, don't delete existing tags, just add on. If false, replace the tags with the new tags. * @return mixed Array of affected term IDs. WP_Error or false on failure. */ function wp_set_post_terms( $post_id = 0, $tags = '', $taxonomy = 'post_tag', $append = false ) { $post_id = (int) $post_id; if ( !$post_id ) return false; if ( empty($tags) ) $tags = array(); $tags = is_array($tags) ? $tags : explode( ',', trim($tags, " \n\t\r\0\x0B,") ); // Hierarchical taxonomies must always pass IDs rather than names so that children with the same // names but different parents aren't confused. if ( is_taxonomy_hierarchical( $taxonomy ) ) { $tags = array_map( 'intval', $tags ); $tags = array_unique( $tags ); } return wp_set_object_terms($post_id, $tags, $taxonomy, $append); } /** * Set categories for a post. * * If the post categories parameter is not set, then the default category is * going used. * * @since 2.1.0 * * @param int $post_ID Post ID. * @param array $post_categories Optional. List of categories. * @return bool|mixed */ function wp_set_post_categories($post_ID = 0, $post_categories = array()) { $post_ID = (int) $post_ID; $post_type = get_post_type( $post_ID ); $post_status = get_post_status( $post_ID ); // If $post_categories isn't already an array, make it one: if ( !is_array($post_categories) || empty($post_categories) ) { if ( 'post' == $post_type && 'auto-draft' != $post_status ) $post_categories = array( get_option('default_category') ); else $post_categories = array(); } else if ( 1 == count($post_categories) && '' == reset($post_categories) ) { return true; } if ( !empty($post_categories) ) { $post_categories = array_map('intval', $post_categories); $post_categories = array_unique($post_categories); } return wp_set_object_terms($post_ID, $post_categories, 'category'); } /** * Transition the post status of a post. * * Calls hooks to transition post status. * * The first is 'transition_post_status' with new status, old status, and post data. * * The next action called is 'OLDSTATUS_to_NEWSTATUS' the 'NEWSTATUS' is the * $new_status parameter and the 'OLDSTATUS' is $old_status parameter; it has the * post data. * * The final action is named 'NEWSTATUS_POSTTYPE', 'NEWSTATUS' is from the $new_status * parameter and POSTTYPE is post_type post data. * * @since 2.3.0 * @link http://codex.wordpress.org/Post_Status_Transitions * * @uses do_action() Calls 'transition_post_status' on $new_status, $old_status and * $post if there is a status change. * @uses do_action() Calls '{$old_status}_to_{$new_status}' on $post if there is a status change. * @uses do_action() Calls '{$new_status}_{$post->post_type}' on post ID and $post. * * @param string $new_status Transition to this post status. * @param string $old_status Previous post status. * @param object $post Post data. */ function wp_transition_post_status($new_status, $old_status, $post) { do_action('transition_post_status', $new_status, $old_status, $post); do_action("{$old_status}_to_{$new_status}", $post); do_action("{$new_status}_{$post->post_type}", $post->ID, $post); } // // Trackback and ping functions // /** * Add a URL to those already pung. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID. * @param string $uri Ping URI. * @return int How many rows were updated. */ function add_ping($post_id, $uri) { global $wpdb; $pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id )); $pung = trim($pung); $pung = preg_split('/\s/', $pung); $pung[] = $uri; $new = implode("\n", $pung); $new = apply_filters('add_ping', $new); // expected_slashed ($new) $new = stripslashes($new); return $wpdb->update( $wpdb->posts, array( 'pinged' => $new ), array( 'ID' => $post_id ) ); } /** * Retrieve enclosures already enclosed for a post. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID. * @return array List of enclosures */ function get_enclosed($post_id) { $custom_fields = get_post_custom( $post_id ); $pung = array(); if ( !is_array( $custom_fields ) ) return $pung; foreach ( $custom_fields as $key => $val ) { if ( 'enclosure' != $key || !is_array( $val ) ) continue; foreach( $val as $enc ) { $enclosure = split( "\n", $enc ); $pung[] = trim( $enclosure[ 0 ] ); } } $pung = apply_filters('get_enclosed', $pung, $post_id); return $pung; } /** * Retrieve URLs already pinged for a post. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID. * @return array */ function get_pung($post_id) { global $wpdb; $pung = $wpdb->get_var( $wpdb->prepare( "SELECT pinged FROM $wpdb->posts WHERE ID = %d", $post_id )); $pung = trim($pung); $pung = preg_split('/\s/', $pung); $pung = apply_filters('get_pung', $pung); return $pung; } /** * Retrieve URLs that need to be pinged. * * @since 1.5.0 * @uses $wpdb * * @param int $post_id Post ID * @return array */ function get_to_ping($post_id) { global $wpdb; $to_ping = $wpdb->get_var( $wpdb->prepare( "SELECT to_ping FROM $wpdb->posts WHERE ID = %d", $post_id )); $to_ping = trim($to_ping); $to_ping = preg_split('/\s/', $to_ping, -1, PREG_SPLIT_NO_EMPTY); $to_ping = apply_filters('get_to_ping', $to_ping); return $to_ping; } /** * Do trackbacks for a list of URLs. * * @since 1.0.0 * * @param string $tb_list Comma separated list of URLs * @param int $post_id Post ID */ function trackback_url_list($tb_list, $post_id) { if ( ! empty( $tb_list ) ) { // get post data $postdata = wp_get_single_post($post_id, ARRAY_A); // import postdata as variables extract($postdata, EXTR_SKIP); // form an excerpt $excerpt = strip_tags($post_excerpt ? $post_excerpt : $post_content); if (strlen($excerpt) > 255) { $excerpt = substr($excerpt,0,252) . '...'; } $trackback_urls = explode(',', $tb_list); foreach( (array) $trackback_urls as $tb_url) { $tb_url = trim($tb_url); trackback($tb_url, stripslashes($post_title), $excerpt, $post_id); } } } // // Page functions // /** * Get a list of page IDs. * * @since 2.0.0 * @uses $wpdb * * @return array List of page IDs. */ function get_all_page_ids() { global $wpdb; if ( ! $page_ids = wp_cache_get('all_page_ids', 'posts') ) { $page_ids = $wpdb->get_col("SELECT ID FROM $wpdb->posts WHERE post_type = 'page'"); wp_cache_add('all_page_ids', $page_ids, 'posts'); } return $page_ids; } /** * Retrieves page data given a page ID or page object. * * @since 1.5.1 * * @param mixed $page Page object or page ID. Passed by reference. * @param string $output What to output. OBJECT, ARRAY_A, or ARRAY_N. * @param string $filter How the return value should be filtered. * @return mixed Page data. */ function &get_page(&$page, $output = OBJECT, $filter = 'raw') { $p = get_post($page, $output, $filter); return $p; } /** * Retrieves a page given its path. * * @since 2.1.0 * @uses $wpdb * * @param string $page_path Page path * @param string $output Optional. Output type. OBJECT, ARRAY_N, or ARRAY_A. Default OBJECT. * @param string $post_type Optional. Post type. Default page. * @return mixed Null when complete. */ function get_page_by_path($page_path, $output = OBJECT, $post_type = 'page') { global $wpdb; $null = null; $page_path = rawurlencode(urldecode($page_path)); $page_path = str_replace('%2F', '/', $page_path); $page_path = str_replace('%20', ' ', $page_path); $page_paths = '/' . trim($page_path, '/'); $leaf_path = sanitize_title(basename($page_paths)); $page_paths = explode('/', $page_paths); $full_path = ''; foreach ( (array) $page_paths as $pathdir ) $full_path .= ( $pathdir != '' ? '/' : '' ) . sanitize_title($pathdir); $pages = $wpdb->get_results( $wpdb->prepare( "SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE post_name = %s AND (post_type = %s OR post_type = 'attachment')", $leaf_path, $post_type )); if ( empty($pages) ) return $null; foreach ( $pages as $page ) { $path = '/' . $leaf_path; $curpage = $page; while ( $curpage->post_parent != 0 ) { $post_parent = $curpage->post_parent; $curpage = wp_cache_get( $post_parent, 'posts' ); if ( false === $curpage ) $curpage = $wpdb->get_row( $wpdb->prepare( "SELECT ID, post_name, post_parent FROM $wpdb->posts WHERE ID = %d and post_type = %s", $post_parent, $post_type ) ); $path = '/' . $curpage->post_name . $path; } if ( $path == $full_path ) return get_page($page->ID, $output, $post_type); } return $null; } /** * Retrieve a page given its title. * * @since 2.1.0 * @uses $wpdb * * @param string $page_title Page title * @param string $output Optional. Output type. OBJECT, ARRAY_N, or ARRAY_A. Default OBJECT. * @param string $post_type Optional. Post type. Default page. * @return mixed */ function get_page_by_title($page_title, $output = OBJECT, $post_type = 'page' ) { global $wpdb; $page = $wpdb->get_var( $wpdb->prepare( "SELECT ID FROM $wpdb->posts WHERE post_title = %s AND post_type= %s", $page_title, $post_type ) ); if ( $page ) return get_page($page, $output); return null; } /** * Retrieve child pages from list of pages matching page ID. * * Matches against the pages parameter against the page ID. Also matches all * children for the same to retrieve all children of a page. Does not make any * SQL queries to get the children. * * @since 1.5.1 * * @param int $page_id Page ID. * @param array $pages List of pages' objects. * @return array */ function &get_page_children($page_id, $pages) { $page_list = array(); foreach ( (array) $pages as $page ) { if ( $page->post_parent == $page_id ) { $page_list[] = $page; if ( $children = get_page_children($page->ID, $pages) ) $page_list = array_merge($page_list, $children); } } return $page_list; } /** * Order the pages with children under parents in a flat list. * * It uses auxiliary structure to hold parent-children relationships and * runs in O(N) complexity * * @since 2.0.0 * * @param array $pages Posts array. * @param int $page_id Parent page ID. * @return array A list arranged by hierarchy. Children immediately follow their parents. */ function &get_page_hierarchy( &$pages, $page_id = 0 ) { if ( empty( $pages ) ) { $result = array(); return $result; } $children = array(); foreach ( (array) $pages as $p ) { $parent_id = intval( $p->post_parent ); $children[ $parent_id ][] = $p; } $result = array(); _page_traverse_name( $page_id, $children, $result ); return $result; } /** * function to traverse and return all the nested children post names of a root page. * $children contains parent-chilren relations * * @since 2.9.0 */ function _page_traverse_name( $page_id, &$children, &$result ){ if ( isset( $children[ $page_id ] ) ){ foreach( (array)$children[ $page_id ] as $child ) { $result[ $child->ID ] = $child->post_name; _page_traverse_name( $child->ID, $children, $result ); } } } /** * Builds URI for a page. * * Sub pages will be in the "directory" under the parent page post name. * * @since 1.5.0 * * @param mixed $page Page object or page ID. * @return string Page URI. */ function get_page_uri($page) { if ( ! is_object($page) ) $page = get_page($page); $uri = $page->post_name; // A page cannot be it's own parent. if ( $page->post_parent == $page->ID ) return $uri; while ($page->post_parent != 0) { $page = get_page($page->post_parent); $uri = $page->post_name . "/" . $uri; } return $uri; } /** * Retrieve a list of pages. * * The defaults that can be overridden are the following: 'child_of', * 'sort_order', 'sort_column', 'post_title', 'hierarchical', 'exclude', * 'include', 'meta_key', 'meta_value','authors', 'number', and 'offset'. * * @since 1.5.0 * @uses $wpdb * * @param mixed $args Optional. Array or string of options that overrides defaults. * @return array List of pages matching defaults or $args */ function &get_pages($args = '') { global $wpdb; $defaults = array( 'child_of' => 0, 'sort_order' => 'ASC', 'sort_column' => 'post_title', 'hierarchical' => 1, 'exclude' => array(), 'include' => array(), 'meta_key' => '', 'meta_value' => '', 'authors' => '', 'parent' => -1, 'exclude_tree' => '', 'number' => '', 'offset' => 0, 'post_type' => 'page', 'post_status' => 'publish', ); $r = wp_parse_args( $args, $defaults ); extract( $r, EXTR_SKIP ); $number = (int) $number; $offset = (int) $offset; // Make sure the post type is hierarchical $hierarchical_post_types = get_post_types( array( 'hierarchical' => true ) ); if ( !in_array( $post_type, $hierarchical_post_types ) ) return false; // Make sure we have a valid post status if ( !is_array( $post_status ) ) $post_status = explode( ',', $post_status ); if ( array_diff( $post_status, get_post_stati() ) ) return false; $cache = array(); $key = md5( serialize( compact(array_keys($defaults)) ) ); if ( $cache = wp_cache_get( 'get_pages', 'posts' ) ) { if ( is_array($cache) && isset( $cache[ $key ] ) ) { $pages = apply_filters('get_pages', $cache[ $key ], $r ); return $pages; } } if ( !is_array($cache) ) $cache = array(); $inclusions = ''; if ( !empty($include) ) { $child_of = 0; //ignore child_of, parent, exclude, meta_key, and meta_value params if using include $parent = -1; $exclude = ''; $meta_key = ''; $meta_value = ''; $hierarchical = false; $incpages = wp_parse_id_list( $include ); if ( ! empty( $incpages ) ) { foreach ( $incpages as $incpage ) { if (empty($inclusions)) $inclusions = $wpdb->prepare(' AND ( ID = %d ', $incpage); else $inclusions .= $wpdb->prepare(' OR ID = %d ', $incpage); } } } if (!empty($inclusions)) $inclusions .= ')'; $exclusions = ''; if ( !empty($exclude) ) { $expages = wp_parse_id_list( $exclude ); if ( ! empty( $expages ) ) { foreach ( $expages as $expage ) { if (empty($exclusions)) $exclusions = $wpdb->prepare(' AND ( ID <> %d ', $expage); else $exclusions .= $wpdb->prepare(' AND ID <> %d ', $expage); } } } if (!empty($exclusions)) $exclusions .= ')'; $author_query = ''; if (!empty($authors)) { $post_authors = preg_split('/[\s,]+/',$authors); if ( ! empty( $post_authors ) ) { foreach ( $post_authors as $post_author ) { //Do we have an author id or an author login? if ( 0 == intval($post_author) ) { $post_author = get_userdatabylogin($post_author); if ( empty($post_author) ) continue; if ( empty($post_author->ID) ) continue; $post_author = $post_author->ID; } if ( '' == $author_query ) $author_query = $wpdb->prepare(' post_author = %d ', $post_author); else $author_query .= $wpdb->prepare(' OR post_author = %d ', $post_author); } if ( '' != $author_query ) $author_query = " AND ($author_query)"; } } $join = ''; $where = "$exclusions $inclusions "; if ( ! empty( $meta_key ) || ! empty( $meta_value ) ) { $join = " LEFT JOIN $wpdb->postmeta ON ( $wpdb->posts.ID = $wpdb->postmeta.post_id )"; // meta_key and meta_value might be slashed $meta_key = stripslashes($meta_key); $meta_value = stripslashes($meta_value); if ( ! empty( $meta_key ) ) $where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_key = %s", $meta_key); if ( ! empty( $meta_value ) ) $where .= $wpdb->prepare(" AND $wpdb->postmeta.meta_value = %s", $meta_value); } if ( $parent >= 0 ) $where .= $wpdb->prepare(' AND post_parent = %d ', $parent); if ( 1 == count( $post_status ) ) { $where_post_type = $wpdb->prepare( "post_type = %s AND post_status = %s", $post_type, array_shift( $post_status ) ); } else { $post_status = implode( "', '", $post_status ); $where_post_type = $wpdb->prepare( "post_type = %s AND post_status IN ('$post_status')", $post_type ); } $orderby_array = array(); $allowed_keys = array('author', 'post_author', 'date', 'post_date', 'title', 'post_title', 'modified', 'post_modified', 'modified_gmt', 'post_modified_gmt', 'menu_order', 'parent', 'post_parent', 'ID', 'rand', 'comment_count'); foreach ( explode( ',', $sort_column ) as $orderby ) { $orderby = trim( $orderby ); if ( !in_array( $orderby, $allowed_keys ) ) continue; switch ( $orderby ) { case 'menu_order': break; case 'ID': $orderby = "$wpdb->posts.ID"; break; case 'rand': $orderby = 'RAND()'; break; case 'comment_count': $orderby = "$wpdb->posts.comment_count"; break; default: if ( 0 === strpos( $orderby, 'post_' ) ) $orderby = "$wpdb->posts." . $orderby; else $orderby = "$wpdb->posts.post_" . $orderby; } $orderby_array[] = $orderby; } $sort_column = ! empty( $orderby_array ) ? implode( ',', $orderby_array ) : "$wpdb->posts.post_title"; $sort_order = strtoupper( $sort_order ); if ( '' !== $sort_order && !in_array( $sort_order, array( 'ASC', 'DESC' ) ) ) $sort_order = 'ASC'; $query = "SELECT * FROM $wpdb->posts $join WHERE ($where_post_type) $where "; $query .= $author_query; $query .= " ORDER BY " . $sort_column . " " . $sort_order ; if ( !empty($number) ) $query .= ' LIMIT ' . $offset . ',' . $number; $pages = $wpdb->get_results($query); if ( empty($pages) ) { $pages = apply_filters('get_pages', array(), $r); return $pages; } // Sanitize before caching so it'll only get done once $num_pages = count($pages); for ($i = 0; $i < $num_pages; $i++) { $pages[$i] = sanitize_post($pages[$i], 'raw'); } // Update cache. update_page_cache($pages); if ( $child_of || $hierarchical ) $pages = & get_page_children($child_of, $pages); if ( !empty($exclude_tree) ) { $exclude = (int) $exclude_tree; $children = get_page_children($exclude, $pages); $excludes = array(); foreach ( $children as $child ) $excludes[] = $child->ID; $excludes[] = $exclude; $num_pages = count($pages); for ( $i = 0; $i < $num_pages; $i++ ) { if ( in_array($pages[$i]->ID, $excludes) ) unset($pages[$i]); } } $cache[ $key ] = $pages; wp_cache_set( 'get_pages', $cache, 'posts' ); $pages = apply_filters('get_pages', $pages, $r); return $pages; } // // Attachment functions // /** * Check if the attachment URI is local one and is really an attachment. * * @since 2.0.0 * * @param string $url URL to check * @return bool True on success, false on failure. */ function is_local_attachment($url) { if (strpos($url, home_url()) === false) return false; if (strpos($url, home_url('/?attachment_id=')) !== false) return true; if ( $id = url_to_postid($url) ) { $post = & get_post($id); if ( 'attachment' == $post->post_type ) return true; } return false; } /** * Insert an attachment. * * If you set the 'ID' in the $object parameter, it will mean that you are * updating and attempt to update the attachment. You can also set the * attachment name or title by setting the key 'post_name' or 'post_title'. * * You can set the dates for the attachment manually by setting the 'post_date' * and 'post_date_gmt' keys' values. * * By default, the comments will use the default settings for whether the * comments are allowed. You can close them manually or keep them open by * setting the value for the 'comment_status' key. * * The $object parameter can have the following: * 'post_status' - Default is 'draft'. Can not be overridden, set the same as parent post. * 'post_type' - Default is 'post', will be set to attachment. Can not override. * 'post_author' - Default is current user ID. The ID of the user, who added the attachment. * 'ping_status' - Default is the value in default ping status option. Whether the attachment * can accept pings. * 'post_parent' - Default is 0. Can use $parent parameter or set this for the post it belongs * to, if any. * 'menu_order' - Default is 0. The order it is displayed. * 'to_ping' - Whether to ping. * 'pinged' - Default is empty string. * 'post_password' - Default is empty string. The password to access the attachment. * 'guid' - Global Unique ID for referencing the attachment. * 'post_content_filtered' - Attachment post content filtered. * 'post_excerpt' - Attachment excerpt. * * @since 2.0.0 * @uses $wpdb * @uses $user_ID * @uses do_action() Calls 'edit_attachment' on $post_ID if this is an update. * @uses do_action() Calls 'add_attachment' on $post_ID if this is not an update. * * @param string|array $object Arguments to override defaults. * @param string $file Optional filename. * @param int $parent Parent post ID. * @return int Attachment ID. */ function wp_insert_attachment($object, $file = false, $parent = 0) { global $wpdb, $user_ID; $defaults = array('post_status' => 'inherit', 'post_type' => 'post', 'post_author' => $user_ID, 'ping_status' => get_option('default_ping_status'), 'post_parent' => 0, 'menu_order' => 0, 'to_ping' => '', 'pinged' => '', 'post_password' => '', 'guid' => '', 'post_content_filtered' => '', 'post_excerpt' => '', 'import_id' => 0, 'context' => ''); $object = wp_parse_args($object, $defaults); if ( !empty($parent) ) $object['post_parent'] = $parent; unset( $object[ 'filter' ] ); $object = sanitize_post($object, 'db'); // export array as variables extract($object, EXTR_SKIP); if ( empty($post_author) ) $post_author = $user_ID; $post_type = 'attachment'; if ( ! in_array( $post_status, array( 'inherit', 'private' ) ) ) $post_status = 'inherit'; // Make sure we set a valid category. if ( !isset($post_category) || 0 == count($post_category) || !is_array($post_category) ) { // 'post' requires at least one category. if ( 'post' == $post_type ) $post_category = array( get_option('default_category') ); else $post_category = array(); } // Are we updating or creating? if ( !empty($ID) ) { $update = true; $post_ID = (int) $ID; } else { $update = false; $post_ID = 0; } // Create a valid post name. if ( empty($post_name) ) $post_name = sanitize_title($post_title); else $post_name = sanitize_title($post_name); // expected_slashed ($post_name) $post_name = wp_unique_post_slug($post_name, $post_ID, $post_status, $post_type, $post_parent); if ( empty($post_date) ) $post_date = current_time('mysql'); if ( empty($post_date_gmt) ) $post_date_gmt = current_time('mysql', 1); if ( empty($post_modified) ) $post_modified = $post_date; if ( empty($post_modified_gmt) ) $post_modified_gmt = $post_date_gmt; if ( empty($comment_status) ) { if ( $update ) $comment_status = 'closed'; else $comment_status = get_option('default_comment_status'); } if ( empty($ping_status) ) $ping_status = get_option('default_ping_status'); if ( isset($to_ping) ) $to_ping = preg_replace('|\s+|', "\n", $to_ping); else $to_ping = ''; if ( isset($post_parent) ) $post_parent = (int) $post_parent; else $post_parent = 0; if ( isset($menu_order) ) $menu_order = (int) $menu_order; else $menu_order = 0; if ( !isset($post_password) ) $post_password = ''; if ( ! isset($pinged) ) $pinged = ''; // expected_slashed (everything!) $data = compact( array( 'post_author', 'post_date', 'post_date_gmt', 'post_content', 'post_content_filtered', 'post_title', 'post_excerpt', 'post_status', 'post_type', 'comment_status', 'ping_status', 'post_password', 'post_name', 'to_ping', 'pinged', 'post_modified', 'post_modified_gmt', 'post_parent', 'menu_order', 'post_mime_type', 'guid' ) ); $data = stripslashes_deep( $data ); if ( $update ) { $wpdb->update( $wpdb->posts, $data, array( 'ID' => $post_ID ) ); } else { // If there is a suggested ID, use it if not already present if ( !empty($import_id) ) { $import_id = (int) $import_id; if ( ! $wpdb->get_var( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE ID = %d", $import_id) ) ) { $data['ID'] = $import_id; } } $wpdb->insert( $wpdb->posts, $data ); $post_ID = (int) $wpdb->insert_id; } if ( empty($post_name) ) { $post_name = sanitize_title($post_title, $post_ID); $wpdb->update( $wpdb->posts, compact("post_name"), array( 'ID' => $post_ID ) ); } wp_set_post_categories($post_ID, $post_category); if ( $file ) update_attached_file( $post_ID, $file ); clean_post_cache($post_ID); if ( isset($post_parent) && $post_parent < 0 ) add_post_meta($post_ID, '_wp_attachment_temp_parent', $post_parent, true); if ( ! empty( $context ) ) add_post_meta( $post_ID, '_wp_attachment_context', $context, true ); if ( $update) { do_action('edit_attachment', $post_ID); } else { do_action('add_attachment', $post_ID); } return $post_ID; } /** * Trashes or deletes an attachment. * * When an attachment is permanently deleted, the file will also be removed. * Deletion removes all post meta fields, taxonomy, comments, etc. associated * with the attachment (except the main post). * * The attachment is moved to the trash instead of permanently deleted unless trash * for media is disabled, item is already in the trash, or $force_delete is true. * * @since 2.0.0 * @uses $wpdb * @uses do_action() Calls 'delete_attachment' hook on Attachment ID. * * @param int $post_id Attachment ID. * @param bool $force_delete Whether to bypass trash and force deletion. Defaults to false. * @return mixed False on failure. Post data on success. */ function wp_delete_attachment( $post_id, $force_delete = false ) { global $wpdb; if ( !$post = $wpdb->get_row( $wpdb->prepare("SELECT * FROM $wpdb->posts WHERE ID = %d", $post_id) ) ) return $post; if ( 'attachment' != $post->post_type ) return false; if ( !$force_delete && EMPTY_TRASH_DAYS && MEDIA_TRASH && 'trash' != $post->post_status ) return wp_trash_post( $post_id ); delete_post_meta($post_id, '_wp_trash_meta_status'); delete_post_meta($post_id, '_wp_trash_meta_time'); $meta = wp_get_attachment_metadata( $post_id ); $backup_sizes = get_post_meta( $post->ID, '_wp_attachment_backup_sizes', true ); $file = get_attached_file( $post_id ); if ( is_multisite() ) delete_transient( 'dirsize_cache' ); do_action('delete_attachment', $post_id); wp_delete_object_term_relationships($post_id, array('category', 'post_tag')); wp_delete_object_term_relationships($post_id, get_object_taxonomies($post->post_type)); $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->postmeta WHERE meta_key = '_thumbnail_id' AND meta_value = %d", $post_id )); $comment_ids = $wpdb->get_col( $wpdb->prepare( "SELECT comment_ID FROM $wpdb->comments WHERE comment_post_ID = %d", $post_id )); if ( ! empty( $comment_ids ) ) { do_action( 'delete_comment', $comment_ids ); foreach ( $comment_ids as $comment_id ) wp_delete_comment( $comment_id, true ); do_action( 'deleted_comment', $comment_ids ); } $post_meta_ids = $wpdb->get_col( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE post_id = %d ", $post_id )); if ( !empty($post_meta_ids) ) { do_action( 'delete_postmeta', $post_meta_ids ); $in_post_meta_ids = "'" . implode("', '", $post_meta_ids) . "'"; $wpdb->query( "DELETE FROM $wpdb->postmeta WHERE meta_id IN($in_post_meta_ids)" ); do_action( 'deleted_postmeta', $post_meta_ids ); } do_action( 'delete_post', $post_id ); $wpdb->query( $wpdb->prepare( "DELETE FROM $wpdb->posts WHERE ID = %d", $post_id )); do_action( 'deleted_post', $post_id ); $uploadpath = wp_upload_dir(); if ( ! empty($meta['thumb']) ) { // Don't delete the thumb if another attachment uses it if (! $wpdb->get_row( $wpdb->prepare( "SELECT meta_id FROM $wpdb->postmeta WHERE meta_key = '_wp_attachment_metadata' AND meta_value LIKE %s AND post_id <> %d", '%' . $meta['thumb'] . '%', $post_id)) ) { $thumbfile = str_replace(basename($file), $meta['thumb'], $file); $thumbfile = apply_filters('wp_delete_file', $thumbfile); @ unlink( path_join($uploadpath['basedir'], $thumbfile) ); } } // remove intermediate and backup images if there are any foreach ( get_intermediate_image_sizes() as $size ) { if ( $intermediate = image_get_intermediate_size($post_id, $size) ) { $intermediate_file = apply_filters('wp_delete_file', $intermediate['path']); @ unlink( path_join($uploadpath['basedir'], $intermediate_file) ); } } if ( is_array($backup_sizes) ) { foreach ( $backup_sizes as $size ) { $del_file = path_join( dirname($meta['file']), $size['file'] ); $del_file = apply_filters('wp_delete_file', $del_file); @ unlink( path_join($uploadpath['basedir'], $del_file) ); } } $file = apply_filters('wp_delete_file', $file); if ( ! empty($file) ) @ unlink($file); clean_post_cache($post_id); return $post; } /** * Retrieve attachment meta field for attachment ID. * * @since 2.1.0 * * @param int $post_id Attachment ID * @param bool $unfiltered Optional, default is false. If true, filters are not run. * @return string|bool Attachment meta field. False on failure. */ function wp_get_attachment_metadata( $post_id = 0, $unfiltered = false ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; $data = get_post_meta( $post->ID, '_wp_attachment_metadata', true ); if ( $unfiltered ) return $data; return apply_filters( 'wp_get_attachment_metadata', $data, $post->ID ); } /** * Update metadata for an attachment. * * @since 2.1.0 * * @param int $post_id Attachment ID. * @param array $data Attachment data. * @return int */ function wp_update_attachment_metadata( $post_id, $data ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; $data = apply_filters( 'wp_update_attachment_metadata', $data, $post->ID ); return update_post_meta( $post->ID, '_wp_attachment_metadata', $data); } /** * Retrieve the URL for an attachment. * * @since 2.1.0 * * @param int $post_id Attachment ID. * @return string */ function wp_get_attachment_url( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; $url = ''; if ( $file = get_post_meta( $post->ID, '_wp_attached_file', true) ) { //Get attached file if ( ($uploads = wp_upload_dir()) && false === $uploads['error'] ) { //Get upload directory if ( 0 === strpos($file, $uploads['basedir']) ) //Check that the upload base exists in the file location $url = str_replace($uploads['basedir'], $uploads['baseurl'], $file); //replace file location with url location elseif ( false !== strpos($file, 'wp-content/uploads') ) $url = $uploads['baseurl'] . substr( $file, strpos($file, 'wp-content/uploads') + 18 ); else $url = $uploads['baseurl'] . "/$file"; //Its a newly uploaded file, therefor $file is relative to the basedir. } } if ( empty($url) ) //If any of the above options failed, Fallback on the GUID as used pre-2.7, not recomended to rely upon this. $url = get_the_guid( $post->ID ); $url = apply_filters( 'wp_get_attachment_url', $url, $post->ID ); if ( 'attachment' != $post->post_type || empty( $url ) ) return false; return $url; } /** * Retrieve thumbnail for an attachment. * * @since 2.1.0 * * @param int $post_id Attachment ID. * @return mixed False on failure. Thumbnail file path on success. */ function wp_get_attachment_thumb_file( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; if ( !is_array( $imagedata = wp_get_attachment_metadata( $post->ID ) ) ) return false; $file = get_attached_file( $post->ID ); if ( !empty($imagedata['thumb']) && ($thumbfile = str_replace(basename($file), $imagedata['thumb'], $file)) && file_exists($thumbfile) ) return apply_filters( 'wp_get_attachment_thumb_file', $thumbfile, $post->ID ); return false; } /** * Retrieve URL for an attachment thumbnail. * * @since 2.1.0 * * @param int $post_id Attachment ID * @return string|bool False on failure. Thumbnail URL on success. */ function wp_get_attachment_thumb_url( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; if ( !$url = wp_get_attachment_url( $post->ID ) ) return false; $sized = image_downsize( $post_id, 'thumbnail' ); if ( $sized ) return $sized[0]; if ( !$thumb = wp_get_attachment_thumb_file( $post->ID ) ) return false; $url = str_replace(basename($url), basename($thumb), $url); return apply_filters( 'wp_get_attachment_thumb_url', $url, $post->ID ); } /** * Check if the attachment is an image. * * @since 2.1.0 * * @param int $post_id Attachment ID * @return bool */ function wp_attachment_is_image( $post_id = 0 ) { $post_id = (int) $post_id; if ( !$post =& get_post( $post_id ) ) return false; if ( !$file = get_attached_file( $post->ID ) ) return false; $ext = preg_match('/\.([^.]+)$/', $file, $matches) ? strtolower($matches[1]) : false; $image_exts = array('jpg', 'jpeg', 'gif', 'png'); if ( 'image/' == substr($post->post_mime_type, 0, 6) || $ext && 'import' == $post->post_mime_type && in_array($ext, $image_exts) ) return true; return false; } /** * Retrieve the icon for a MIME type. * * @since 2.1.0 * * @param string $mime MIME type * @return string|bool */ function wp_mime_type_icon( $mime = 0 ) { if ( !is_numeric($mime) ) $icon = wp_cache_get("mime_type_icon_$mime"); if ( empty($icon) ) { $post_id = 0; $post_mimes = array(); if ( is_numeric($mime) ) { $mime = (int) $mime; if ( $post =& get_post( $mime ) ) { $post_id = (int) $post->ID; $ext = preg_replace('/^.+?\.([^.]+)$/', '$1', $post->guid); if ( !empty($ext) ) { $post_mimes[] = $ext; if ( $ext_type = wp_ext2type( $ext ) ) $post_mimes[] = $ext_type; } $mime = $post->post_mime_type; } else { $mime = 0; } } else { $post_mimes[] = $mime; } $icon_files = wp_cache_get('icon_files'); if ( !is_array($icon_files) ) { $icon_dir = apply_filters( 'icon_dir', ABSPATH . WPINC . '/images/crystal' ); $icon_dir_uri = apply_filters( 'icon_dir_uri', includes_url('images/crystal') ); $dirs = apply_filters( 'icon_dirs', array($icon_dir => $icon_dir_uri) ); $icon_files = array(); while ( $dirs ) { $dir = array_shift($keys = array_keys($dirs)); $uri = array_shift($dirs); if ( $dh = opendir($dir) ) { while ( false !== $file = readdir($dh) ) { $file = basename($file); if ( substr($file, 0, 1) == '.' ) continue; if ( !in_array(strtolower(substr($file, -4)), array('.png', '.gif', '.jpg') ) ) { if ( is_dir("$dir/$file") ) $dirs["$dir/$file"] = "$uri/$file"; continue; } $icon_files["$dir/$file"] = "$uri/$file"; } closedir($dh); } } wp_cache_set('icon_files', $icon_files, 600); } // Icon basename - extension = MIME wildcard foreach ( $icon_files as $file => $uri ) $types[ preg_replace('/^([^.]*).*$/', '$1', basename($file)) ] =& $icon_files[$file]; if ( ! empty($mime) ) { $post_mimes[] = substr($mime, 0, strpos($mime, '/')); $post_mimes[] = substr($mime, strpos($mime, '/') + 1); $post_mimes[] = str_replace('/', '_', $mime); } $matches = wp_match_mime_types(array_keys($types), $post_mimes); $matches['default'] = array('default'); foreach ( $matches as $match => $wilds ) { if ( isset($types[$wilds[0]])) { $icon = $types[$wilds[0]]; if ( !is_numeric($mime) ) wp_cache_set("mime_type_icon_$mime", $icon); break; } } } return apply_filters( 'wp_mime_type_icon', $icon, $mime, $post_id ); // Last arg is 0 if function pass mime type. } /** * Checked for changed slugs for published post objects and save the old slug. * * The function is used when a post object of any type is updated, * by comparing the current and previous post objects. * * If the slug was changed and not already part of the old slugs then it will be * added to the post meta field ('_wp_old_slug') for storing old slugs for that * post. * * The most logically usage of this function is redirecting changed post objects, so * that those that linked to an changed post will be redirected to the new post. * * @since 2.1.0 * * @param int $post_id Post ID. * @param object $post The Post Object * @param object $post_before The Previous Post Object * @return int Same as $post_id */ function wp_check_for_changed_slugs($post_id, $post, $post_before) { // dont bother if it hasnt changed if ( $post->post_name == $post_before->post_name ) return; // we're only concerned with published, non-hierarchical objects if ( $post->post_status != 'publish' || is_post_type_hierarchical( $post->post_type ) ) return; $old_slugs = (array) get_post_meta($post_id, '_wp_old_slug'); // if we haven't added this old slug before, add it now if ( !empty( $post_before->post_name ) && !in_array($post_before->post_name, $old_slugs) ) add_post_meta($post_id, '_wp_old_slug', $post_before->post_name); // if the new slug was used previously, delete it from the list if ( in_array($post->post_name, $old_slugs) ) delete_post_meta($post_id, '_wp_old_slug', $post->post_name); } /** * Retrieve the private post SQL based on capability. * * This function provides a standardized way to appropriately select on the * post_status of a post type. The function will return a piece of SQL code * that can be added to a WHERE clause; this SQL is constructed to allow all * published posts, and all private posts to which the user has access. * * @since 2.2.0 * * @uses $user_ID * * @param string $post_type currently only supports 'post' or 'page'. * @return string SQL code that can be added to a where clause. */ function get_private_posts_cap_sql( $post_type ) { return get_posts_by_author_sql( $post_type, false ); } /** * Retrieve the post SQL based on capability, author, and type. * * @see get_private_posts_cap_sql() for full description. * * @since 3.0.0 * @param string $post_type Post type. * @param bool $full Optional. Returns a full WHERE statement instead of just an 'andalso' term. * @param int $post_author Optional. Query posts having a single author ID. * @return string SQL WHERE code that can be added to a query. */ function get_posts_by_author_sql( $post_type, $full = true, $post_author = null ) { global $user_ID, $wpdb; // Private posts $post_type_obj = get_post_type_object( $post_type ); if ( ! $post_type_obj ) return ' 1 = 0 '; // This hook is deprecated. Why you'd want to use it, I dunno. if ( ! $cap = apply_filters( 'pub_priv_sql_capability', '' ) ) $cap = $post_type_obj->cap->read_private_posts; if ( $full ) { if ( null === $post_author ) { $sql = $wpdb->prepare( 'WHERE post_type = %s AND ', $post_type ); } else { $sql = $wpdb->prepare( 'WHERE post_author = %d AND post_type = %s AND ', $post_author, $post_type ); } } else { $sql = ''; } $sql .= "(post_status = 'publish'"; if ( current_user_can( $cap ) ) { // Does the user have the capability to view private posts? Guess so. $sql .= " OR post_status = 'private'"; } elseif ( is_user_logged_in() ) { // Users can view their own private posts. $id = (int) $user_ID; if ( null === $post_author || ! $full ) { $sql .= " OR post_status = 'private' AND post_author = $id"; } elseif ( $id == (int) $post_author ) { $sql .= " OR post_status = 'private'"; } // else none } // else none $sql .= ')'; return $sql; } /** * Retrieve the date that the last post was published. * * The server timezone is the default and is the difference between GMT and * server time. The 'blog' value is the date when the last post was posted. The * 'gmt' is when the last post was posted in GMT formatted date. * * @since 0.71 * * @uses apply_filters() Calls 'get_lastpostdate' filter * * @param string $timezone The location to get the time. Can be 'gmt', 'blog', or 'server'. * @return string The date of the last post. */ function get_lastpostdate($timezone = 'server') { return apply_filters( 'get_lastpostdate', _get_last_post_time( $timezone, 'date' ), $timezone ); } /** * Retrieve last post modified date depending on timezone. * * The server timezone is the default and is the difference between GMT and * server time. The 'blog' value is just when the last post was modified. The * 'gmt' is when the last post was modified in GMT time. * * @since 1.2.0 * @uses apply_filters() Calls 'get_lastpostmodified' filter * * @param string $timezone The location to get the time. Can be 'gmt', 'blog', or 'server'. * @return string The date the post was last modified. */ function get_lastpostmodified($timezone = 'server') { $lastpostmodified = _get_last_post_time( $timezone, 'modified' ); $lastpostdate = get_lastpostdate($timezone); if ( $lastpostdate > $lastpostmodified ) $lastpostmodified = $lastpostdate; return apply_filters( 'get_lastpostmodified', $lastpostmodified, $timezone ); } /** * Retrieve latest post date data based on timezone. * * @access private * @since 3.1.0 * * @param string $timezone The location to get the time. Can be 'gmt', 'blog', or 'server'. * @param string $field Field to check. Can be 'date' or 'modified'. * @return string The date. */ function _get_last_post_time( $timezone, $field ) { global $wpdb; if ( !in_array( $field, array( 'date', 'modified' ) ) ) return false; $timezone = strtolower( $timezone ); $key = "lastpost{$field}:$timezone"; $date = wp_cache_get( $key, 'timeinfo' ); if ( !$date ) { $add_seconds_server = date('Z'); $post_types = get_post_types( array( 'public' => true ) ); array_walk( $post_types, array( &$wpdb, 'escape_by_ref' ) ); $post_types = "'" . implode( "', '", $post_types ) . "'"; switch ( $timezone ) { case 'gmt': $date = $wpdb->get_var("SELECT post_{$field}_gmt FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; case 'blog': $date = $wpdb->get_var("SELECT post_{$field} FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; case 'server': $date = $wpdb->get_var("SELECT DATE_ADD(post_{$field}_gmt, INTERVAL '$add_seconds_server' SECOND) FROM $wpdb->posts WHERE post_status = 'publish' AND post_type IN ({$post_types}) ORDER BY post_{$field}_gmt DESC LIMIT 1"); break; } if ( $date ) wp_cache_set( $key, $date, 'timeinfo' ); } return $date; } /** * Updates posts in cache. * * @usedby update_page_cache() Aliased by this function. * * @package WordPress * @subpackage Cache * @since 1.5.1 * * @param array $posts Array of post objects */ function update_post_cache(&$posts) { if ( !$posts ) return; foreach ( $posts as $post ) wp_cache_add($post->ID, $post, 'posts'); } /** * Will clean the post in the cache. * * Cleaning means delete from the cache of the post. Will call to clean the term * object cache associated with the post ID. * * clean_post_cache() will call itself recursively for each child post. * * This function not run if $_wp_suspend_cache_invalidation is not empty. See * wp_suspend_cache_invalidation(). * * @package WordPress * @subpackage Cache * @since 2.0.0 * * @uses do_action() Calls 'clean_post_cache' on $id before adding children (if any). * * @param int $id The Post ID in the cache to clean */ function clean_post_cache($id) { global $_wp_suspend_cache_invalidation, $wpdb; if ( !empty($_wp_suspend_cache_invalidation) ) return; $id = (int) $id; if ( 0 === $id ) return; wp_cache_delete($id, 'posts'); wp_cache_delete($id, 'post_meta'); clean_object_term_cache($id, 'post'); wp_cache_delete( 'wp_get_archives', 'general' ); do_action('clean_post_cache', $id); if ( $children = $wpdb->get_col( $wpdb->prepare("SELECT ID FROM $wpdb->posts WHERE post_parent = %d", $id) ) ) { foreach ( $children as $cid ) { // Loop detection if ( $cid == $id ) continue; clean_post_cache( $cid ); } } if ( is_multisite() ) wp_cache_delete( $wpdb->blogid . '-' . $id, 'global-posts' ); } /** * Alias of update_post_cache(). * * @see update_post_cache() Posts and pages are the same, alias is intentional * * @package WordPress * @subpackage Cache * @since 1.5.1 * * @param array $pages list of page objects */ function update_page_cache(&$pages) { update_post_cache($pages); } /** * Will clean the page in the cache. * * Clean (read: delete) page from cache that matches $id. Will also clean cache * associated with 'all_page_ids' and 'get_pages'. * * @package WordPress * @subpackage Cache * @since 2.0.0 * * @uses do_action() Will call the 'clean_page_cache' hook action. * * @param int $id Page ID to clean */ function clean_page_cache($id) { clean_post_cache($id); wp_cache_delete( 'all_page_ids', 'posts' ); wp_cache_delete( 'get_pages', 'posts' ); do_action('clean_page_cache', $id); } /** * Call major cache updating functions for list of Post objects. * * @package WordPress * @subpackage Cache * @since 1.5.0 * * @uses $wpdb * @uses update_post_cache() * @uses update_object_term_cache() * @uses update_postmeta_cache() * * @param array $posts Array of Post objects * @param string $post_type The post type of the posts in $posts. Default is 'post'. * @param bool $update_term_cache Whether to update the term cache. Default is true. * @param bool $update_meta_cache Whether to update the meta cache. Default is true. */ function update_post_caches(&$posts, $post_type = 'post', $update_term_cache = true, $update_meta_cache = true) { // No point in doing all this work if we didn't match any posts. if ( !$posts ) return; update_post_cache($posts); $post_ids = array(); foreach ( $posts as $post ) $post_ids[] = $post->ID; if ( empty($post_type) ) $post_type = 'post'; if ( $update_term_cache ) { if ( is_array($post_type) ) { $ptypes = $post_type; } elseif ( 'any' == $post_type ) { // Just use the post_types in the supplied posts. foreach ( $posts as $post ) $ptypes[] = $post->post_type; $ptypes = array_unique($ptypes); } else { $ptypes = array($post_type); } if ( ! empty($ptypes) ) update_object_term_cache($post_ids, $ptypes); } if ( $update_meta_cache ) update_postmeta_cache($post_ids); } /** * Updates metadata cache for list of post IDs. * * Performs SQL query to retrieve the metadata for the post IDs and updates the * metadata cache for the posts. Therefore, the functions, which call this * function, do not need to perform SQL queries on their own. * * @package WordPress * @subpackage Cache * @since 2.1.0 * * @uses $wpdb * * @param array $post_ids List of post IDs. * @return bool|array Returns false if there is nothing to update or an array of metadata. */ function update_postmeta_cache($post_ids) { return update_meta_cache('post', $post_ids); } /** * Will clean the attachment in the cache. * * Cleaning means delete from the cache. Optionaly will clean the term * object cache associated with the attachment ID. * * This function will not run if $_wp_suspend_cache_invalidation is not empty. See * wp_suspend_cache_invalidation(). * * @package WordPress * @subpackage Cache * @since 3.0.0 * * @uses do_action() Calls 'clean_attachment_cache' on $id. * * @param int $id The attachment ID in the cache to clean * @param bool $clean_terms optional. Whether to clean terms cache */ function clean_attachment_cache($id, $clean_terms = false) { global $_wp_suspend_cache_invalidation; if ( !empty($_wp_suspend_cache_invalidation) ) return; $id = (int) $id; wp_cache_delete($id, 'posts'); wp_cache_delete($id, 'post_meta'); if ( $clean_terms ) clean_object_term_cache($id, 'attachment'); do_action('clean_attachment_cache', $id); } // // Hooks // /** * Hook for managing future post transitions to published. * * @since 2.3.0 * @access private * @uses $wpdb * @uses do_action() Calls 'private_to_published' on post ID if this is a 'private_to_published' call. * @uses wp_clear_scheduled_hook() with 'publish_future_post' and post ID. * * @param string $new_status New post status * @param string $old_status Previous post status * @param object $post Object type containing the post information */ function _transition_post_status($new_status, $old_status, $post) { global $wpdb; if ( $old_status != 'publish' && $new_status == 'publish' ) { // Reset GUID if transitioning to publish and it is empty if ( '' == get_the_guid($post->ID) ) $wpdb->update( $wpdb->posts, array( 'guid' => get_permalink( $post->ID ) ), array( 'ID' => $post->ID ) ); do_action('private_to_published', $post->ID); // Deprecated, use private_to_publish } // If published posts changed clear the lastpostmodified cache if ( 'publish' == $new_status || 'publish' == $old_status) { foreach ( array( 'server', 'gmt', 'blog' ) as $timezone ) { wp_cache_delete( "lastpostmodified:$timezone", 'timeinfo' ); wp_cache_delete( "lastpostdate:$timezone", 'timeinfo' ); } } // Always clears the hook in case the post status bounced from future to draft. wp_clear_scheduled_hook('publish_future_post', array( $post->ID ) ); } /** * Hook used to schedule publication for a post marked for the future. * * The $post properties used and must exist are 'ID' and 'post_date_gmt'. * * @since 2.3.0 * @access private * * @param int $deprecated Not used. Can be set to null. Never implemented. * Not marked as deprecated with _deprecated_argument() as it conflicts with * wp_transition_post_status() and the default filter for _future_post_hook(). * @param object $post Object type containing the post information */ function _future_post_hook( $deprecated = '', $post ) { wp_clear_scheduled_hook( 'publish_future_post', array( $post->ID ) ); wp_schedule_single_event( strtotime( get_gmt_from_date( $post->post_date ) . ' GMT') , 'publish_future_post', array( $post->ID ) ); } /** * Hook to schedule pings and enclosures when a post is published. * * @since 2.3.0 * @access private * @uses $wpdb * @uses XMLRPC_REQUEST and APP_REQUEST constants. * @uses do_action() Calls 'xmlprc_publish_post' on post ID if XMLRPC_REQUEST is defined. * @uses do_action() Calls 'app_publish_post' on post ID if APP_REQUEST is defined. * * @param int $post_id The ID in the database table of the post being published */ function _publish_post_hook($post_id) { global $wpdb; if ( defined('XMLRPC_REQUEST') ) do_action('xmlrpc_publish_post', $post_id); if ( defined('APP_REQUEST') ) do_action('app_publish_post', $post_id); if ( defined('WP_IMPORTING') ) return; $data = array( 'post_id' => $post_id, 'meta_value' => '1' ); if ( get_option('default_pingback_flag') ) { $wpdb->insert( $wpdb->postmeta, $data + array( 'meta_key' => '_pingme' ) ); do_action( 'added_postmeta', $wpdb->insert_id, $post_id, '_pingme', 1 ); } $wpdb->insert( $wpdb->postmeta, $data + array( 'meta_key' => '_encloseme' ) ); do_action( 'added_postmeta', $wpdb->insert_id, $post_id, '_encloseme', 1 ); wp_schedule_single_event(time(), 'do_pings'); } /** * Hook used to prevent page/post cache and rewrite rules from staying dirty. * * Does two things. If the post is a page and has a template then it will * update/add that template to the meta. For both pages and posts, it will clean * the post cache to make sure that the cache updates to the changes done * recently. For pages, the rewrite rules of WordPress are flushed to allow for * any changes. * * The $post parameter, only uses 'post_type' property and 'page_template' * property. * * @since 2.3.0 * @access private * @uses $wp_rewrite Flushes Rewrite Rules. * * @param int $post_id The ID in the database table for the $post * @param object $post Object type containing the post information */ function _save_post_hook($post_id, $post) { if ( $post->post_type == 'page' ) { clean_page_cache($post_id); // Avoid flushing rules for every post during import. if ( !defined('WP_IMPORTING') ) { global $wp_rewrite; $wp_rewrite->flush_rules(false); } } else { clean_post_cache($post_id); } } /** * Retrieve post ancestors and append to post ancestors property. * * Will only retrieve ancestors once, if property is already set, then nothing * will be done. If there is not a parent post, or post ID and post parent ID * are the same then nothing will be done. * * The parameter is passed by reference, so nothing needs to be returned. The * property will be updated and can be referenced after the function is * complete. The post parent will be an ancestor and the parent of the post * parent will be an ancestor. There will only be two ancestors at the most. * * @since 2.5.0 * @access private * @uses $wpdb * * @param object $_post Post data. * @return null When nothing needs to be done. */ function _get_post_ancestors(&$_post) { global $wpdb; if ( isset($_post->ancestors) ) return; $_post->ancestors = array(); if ( empty($_post->post_parent) || $_post->ID == $_post->post_parent ) return; $id = $_post->ancestors[] = $_post->post_parent; while ( $ancestor = $wpdb->get_var( $wpdb->prepare("SELECT `post_parent` FROM $wpdb->posts WHERE ID = %d LIMIT 1", $id) ) ) { // Loop detection: If the ancestor has been seen before, break. if ( ( $ancestor == $_post->ID ) || in_array($ancestor, $_post->ancestors) ) break; $id = $_post->ancestors[] = $ancestor; } } /** * Determines which fields of posts are to be saved in revisions. * * Does two things. If passed a post *array*, it will return a post array ready * to be insterted into the posts table as a post revision. Otherwise, returns * an array whose keys are the post fields to be saved for post revisions. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * @access private * @uses apply_filters() Calls '_wp_post_revision_fields' on 'title', 'content' and 'excerpt' fields. * * @param array $post Optional a post array to be processed for insertion as a post revision. * @param bool $autosave optional Is the revision an autosave? * @return array Post array ready to be inserted as a post revision or array of fields that can be versioned. */ function _wp_post_revision_fields( $post = null, $autosave = false ) { static $fields = false; if ( !$fields ) { // Allow these to be versioned $fields = array( 'post_title' => __( 'Title' ), 'post_content' => __( 'Content' ), 'post_excerpt' => __( 'Excerpt' ), ); // Runs only once $fields = apply_filters( '_wp_post_revision_fields', $fields ); // WP uses these internally either in versioning or elsewhere - they cannot be versioned foreach ( array( 'ID', 'post_name', 'post_parent', 'post_date', 'post_date_gmt', 'post_status', 'post_type', 'comment_count', 'post_author' ) as $protect ) unset( $fields[$protect] ); } if ( !is_array($post) ) return $fields; $return = array(); foreach ( array_intersect( array_keys( $post ), array_keys( $fields ) ) as $field ) $return[$field] = $post[$field]; $return['post_parent'] = $post['ID']; $return['post_status'] = 'inherit'; $return['post_type'] = 'revision'; $return['post_name'] = $autosave ? "$post[ID]-autosave" : "$post[ID]-revision"; $return['post_date'] = isset($post['post_modified']) ? $post['post_modified'] : ''; $return['post_date_gmt'] = isset($post['post_modified_gmt']) ? $post['post_modified_gmt'] : ''; return $return; } /** * Saves an already existing post as a post revision. * * Typically used immediately prior to post updates. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses _wp_put_post_revision() * * @param int $post_id The ID of the post to save as a revision. * @return mixed Null or 0 if error, new revision ID, if success. */ function wp_save_post_revision( $post_id ) { // We do autosaves manually with wp_create_post_autosave() if ( defined( 'DOING_AUTOSAVE' ) && DOING_AUTOSAVE ) return; // WP_POST_REVISIONS = 0, false if ( ! WP_POST_REVISIONS ) return; if ( !$post = get_post( $post_id, ARRAY_A ) ) return; if ( !post_type_supports($post['post_type'], 'revisions') ) return; $return = _wp_put_post_revision( $post ); // WP_POST_REVISIONS = true (default), -1 if ( !is_numeric( WP_POST_REVISIONS ) || WP_POST_REVISIONS < 0 ) return $return; // all revisions and (possibly) one autosave $revisions = wp_get_post_revisions( $post_id, array( 'order' => 'ASC' ) ); // WP_POST_REVISIONS = (int) (# of autosaves to save) $delete = count($revisions) - WP_POST_REVISIONS; if ( $delete < 1 ) return $return; $revisions = array_slice( $revisions, 0, $delete ); for ( $i = 0; isset($revisions[$i]); $i++ ) { if ( false !== strpos( $revisions[$i]->post_name, 'autosave' ) ) continue; wp_delete_post_revision( $revisions[$i]->ID ); } return $return; } /** * Retrieve the autosaved data of the specified post. * * Returns a post object containing the information that was autosaved for the * specified post. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @param int $post_id The post ID. * @return object|bool The autosaved data or false on failure or when no autosave exists. */ function wp_get_post_autosave( $post_id ) { if ( !$post = get_post( $post_id ) ) return false; $q = array( 'name' => "{$post->ID}-autosave", 'post_parent' => $post->ID, 'post_type' => 'revision', 'post_status' => 'inherit' ); // Use WP_Query so that the result gets cached $autosave_query = new WP_Query; add_action( 'parse_query', '_wp_get_post_autosave_hack' ); $autosave = $autosave_query->query( $q ); remove_action( 'parse_query', '_wp_get_post_autosave_hack' ); if ( $autosave && is_array($autosave) && is_object($autosave[0]) ) return $autosave[0]; return false; } /** * Internally used to hack WP_Query into submission. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @param object $query WP_Query object */ function _wp_get_post_autosave_hack( $query ) { $query->is_single = false; } /** * Determines if the specified post is a revision. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @param int|object $post Post ID or post object. * @return bool|int False if not a revision, ID of revision's parent otherwise. */ function wp_is_post_revision( $post ) { if ( !$post = wp_get_post_revision( $post ) ) return false; return (int) $post->post_parent; } /** * Determines if the specified post is an autosave. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @param int|object $post Post ID or post object. * @return bool|int False if not a revision, ID of autosave's parent otherwise */ function wp_is_post_autosave( $post ) { if ( !$post = wp_get_post_revision( $post ) ) return false; if ( "{$post->post_parent}-autosave" !== $post->post_name ) return false; return (int) $post->post_parent; } /** * Inserts post data into the posts table as a post revision. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses wp_insert_post() * * @param int|object|array $post Post ID, post object OR post array. * @param bool $autosave Optional. Is the revision an autosave? * @return mixed Null or 0 if error, new revision ID if success. */ function _wp_put_post_revision( $post = null, $autosave = false ) { if ( is_object($post) ) $post = get_object_vars( $post ); elseif ( !is_array($post) ) $post = get_post($post, ARRAY_A); if ( !$post || empty($post['ID']) ) return; if ( isset($post['post_type']) && 'revision' == $post['post_type'] ) return new WP_Error( 'post_type', __( 'Cannot create a revision of a revision' ) ); $post = _wp_post_revision_fields( $post, $autosave ); $post = add_magic_quotes($post); //since data is from db $revision_id = wp_insert_post( $post ); if ( is_wp_error($revision_id) ) return $revision_id; if ( $revision_id ) do_action( '_wp_put_post_revision', $revision_id ); return $revision_id; } /** * Gets a post revision. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses get_post() * * @param int|object $post Post ID or post object * @param string $output Optional. OBJECT, ARRAY_A, or ARRAY_N. * @param string $filter Optional sanitation filter. @see sanitize_post() * @return mixed Null if error or post object if success */ function &wp_get_post_revision(&$post, $output = OBJECT, $filter = 'raw') { $null = null; if ( !$revision = get_post( $post, OBJECT, $filter ) ) return $revision; if ( 'revision' !== $revision->post_type ) return $null; if ( $output == OBJECT ) { return $revision; } elseif ( $output == ARRAY_A ) { $_revision = get_object_vars($revision); return $_revision; } elseif ( $output == ARRAY_N ) { $_revision = array_values(get_object_vars($revision)); return $_revision; } return $revision; } /** * Restores a post to the specified revision. * * Can restore a past revision using all fields of the post revision, or only selected fields. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses wp_get_post_revision() * @uses wp_update_post() * @uses do_action() Calls 'wp_restore_post_revision' on post ID and revision ID if wp_update_post() * is successful. * * @param int|object $revision_id Revision ID or revision object. * @param array $fields Optional. What fields to restore from. Defaults to all. * @return mixed Null if error, false if no fields to restore, (int) post ID if success. */ function wp_restore_post_revision( $revision_id, $fields = null ) { if ( !$revision = wp_get_post_revision( $revision_id, ARRAY_A ) ) return $revision; if ( !is_array( $fields ) ) $fields = array_keys( _wp_post_revision_fields() ); $update = array(); foreach( array_intersect( array_keys( $revision ), $fields ) as $field ) $update[$field] = $revision[$field]; if ( !$update ) return false; $update['ID'] = $revision['post_parent']; $update = add_magic_quotes( $update ); //since data is from db $post_id = wp_update_post( $update ); if ( is_wp_error( $post_id ) ) return $post_id; if ( $post_id ) do_action( 'wp_restore_post_revision', $post_id, $revision['ID'] ); return $post_id; } /** * Deletes a revision. * * Deletes the row from the posts table corresponding to the specified revision. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses wp_get_post_revision() * @uses wp_delete_post() * * @param int|object $revision_id Revision ID or revision object. * @return mixed Null or WP_Error if error, deleted post if success. */ function wp_delete_post_revision( $revision_id ) { if ( !$revision = wp_get_post_revision( $revision_id ) ) return $revision; $delete = wp_delete_post( $revision->ID ); if ( is_wp_error( $delete ) ) return $delete; if ( $delete ) do_action( 'wp_delete_post_revision', $revision->ID, $revision ); return $delete; } /** * Returns all revisions of specified post. * * @package WordPress * @subpackage Post_Revisions * @since 2.6.0 * * @uses get_children() * * @param int|object $post_id Post ID or post object * @return array empty if no revisions */ function wp_get_post_revisions( $post_id = 0, $args = null ) { if ( ! WP_POST_REVISIONS ) return array(); if ( ( !$post = get_post( $post_id ) ) || empty( $post->ID ) ) return array(); $defaults = array( 'order' => 'DESC', 'orderby' => 'date' ); $args = wp_parse_args( $args, $defaults ); $args = array_merge( $args, array( 'post_parent' => $post->ID, 'post_type' => 'revision', 'post_status' => 'inherit' ) ); if ( !$revisions = get_children( $args ) ) return array(); return $revisions; } function _set_preview($post) { if ( ! is_object($post) ) return $post; $preview = wp_get_post_autosave($post->ID); if ( ! is_object($preview) ) return $post; $preview = sanitize_post($preview); $post->post_content = $preview->post_content; $post->post_title = $preview->post_title; $post->post_excerpt = $preview->post_excerpt; return $post; } function _show_post_preview() { if ( isset($_GET['preview_id']) && isset($_GET['preview_nonce']) ) { $id = (int) $_GET['preview_id']; if ( false == wp_verify_nonce( $_GET['preview_nonce'], 'post_preview_' . $id ) ) wp_die( __('You do not have permission to preview drafts.') ); add_filter('the_preview', '_set_preview'); } } /** * Returns the post's parent's post_ID * * @since 3.1.0 * * @param int $post_id * * @return int|bool false on error */ function wp_get_post_parent_id( $post_ID ) { $post = get_post( $post_ID ); if ( !$post || is_wp_error( $post ) ) return false; return (int) $post->post_parent; } /** * Checks the given subset of the post hierarchy for hierarchy loops. * Prevents loops from forming and breaks those that it finds. * * Attached to the wp_insert_post_parent filter. * * @since 3.1.0 * @uses wp_find_hierarchy_loop() * * @param int $post_parent ID of the parent for the post we're checking. * @parem int $post_ID ID of the post we're checking. * * @return int The new post_parent for the post. */ function wp_check_post_hierarchy_for_loops( $post_parent, $post_ID ) { // Nothing fancy here - bail if ( !$post_parent ) return 0; // New post can't cause a loop if ( empty( $post_ID ) ) return $post_parent; // Can't be its own parent if ( $post_parent == $post_ID ) return 0; // Now look for larger loops if ( !$loop = wp_find_hierarchy_loop( 'wp_get_post_parent_id', $post_ID, $post_parent ) ) return $post_parent; // No loop // Setting $post_parent to the given value causes a loop if ( isset( $loop[$post_ID] ) ) return 0; // There's a loop, but it doesn't contain $post_ID. Break the loop. foreach ( array_keys( $loop ) as $loop_member ) wp_update_post( array( 'ID' => $loop_member, 'post_parent' => 0 ) ); return $post_parent; } /** * Returns an array of post format slugs to their translated and pretty display versions * * @since 3.1.0 * * @return array The array of translations */ function get_post_format_strings() { $strings = array( 'standard' => _x( 'Standard', 'Post format' ), // Special case. any value that evals to false will be considered standard 'aside' => _x( 'Aside', 'Post format' ), 'chat' => _x( 'Chat', 'Post format' ), 'gallery' => _x( 'Gallery', 'Post format' ), 'link' => _x( 'Link', 'Post format' ), 'image' => _x( 'Image', 'Post format' ), 'quote' => _x( 'Quote', 'Post format' ), 'status' => _x( 'Status', 'Post format' ), 'video' => _x( 'Video', 'Post format' ), 'audio' => _x( 'Audio', 'Post format' ), ); return $strings; } /** * Retrieves an array of post format slugs. * * @since 3.1.0 * * @return array The array of post format slugs. */ function get_post_format_slugs() { $slugs = array_keys( get_post_format_strings() ); return array_combine( $slugs, $slugs ); } /** * Returns a pretty, translated version of a post format slug * * @since 3.1.0 * * @param string $slug A post format slug * @return string The translated post format name */ function get_post_format_string( $slug ) { $strings = get_post_format_strings(); if ( !$slug ) return $strings['standard']; else return ( isset( $strings[$slug] ) ) ? $strings[$slug] : ''; } /** * Sets a post thumbnail. * * @since 3.1.0 * * @param int|object $post Post ID or object where thumbnail should be attached. * @param int $thumbnail_id Thumbnail to attach. * @return bool True on success, false on failure. */ function set_post_thumbnail( $post, $thumbnail_id ) { $post = get_post( $post ); $thumbnail_id = absint( $thumbnail_id ); if ( $post && $thumbnail_id && get_post( $thumbnail_id ) ) { $thumbnail_html = wp_get_attachment_image( $thumbnail_id, 'thumbnail' ); if ( ! empty( $thumbnail_html ) ) { update_post_meta( $post->ID, '_thumbnail_id', $thumbnail_id ); return true; } } return false; } /** * Returns a link to a post format index. * * @since 3.1.0 * * @param $format string Post format * @return string Link */ function get_post_format_link( $format ) { $term = get_term_by('slug', 'post-format-' . $format, 'post_format' ); if ( ! $term || is_wp_error( $term ) ) return false; return get_term_link( $term ); } /** * Filters the request to allow for the format prefix. * * @access private * @since 3.1.0 */ function _post_format_request( $qvs ) { if ( ! isset( $qvs['post_format'] ) ) return $qvs; $slugs = get_post_format_slugs(); if ( isset( $slugs[ $qvs['post_format'] ] ) ) $qvs['post_format'] = 'post-format-' . $slugs[ $qvs['post_format'] ]; $tax = get_taxonomy( 'post_format' ); $qvs['post_type'] = $tax->object_type; return $qvs; } add_filter( 'request', '_post_format_request' ); /** * Filters the post format term link to remove the format prefix. * * @access private * @since 3.1.0 */ function _post_format_link( $link, $term, $taxonomy ) { global $wp_rewrite; if ( 'post_format' != $taxonomy ) return $link; if ( $wp_rewrite->get_extra_permastruct( $taxonomy ) ) { return str_replace( "/{$term->slug}", '/' . str_replace( 'post-format-', '', $term->slug ), $link ); } else { $link = remove_query_arg( 'post_format', $link ); return add_query_arg( 'post_format', str_replace( 'post-format-', '', $term->slug ), $link ); } } add_filter( 'term_link', '_post_format_link', 10, 3 ); /** * Remove the post format prefix from the name property of the term object created by get_term(). * * @access private * @since 3.1.0 */ function _post_format_get_term( $term ) { if ( isset( $term->slug ) ) { $term->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } return $term; } add_filter( 'get_post_format', '_post_format_get_term' ); /** * Remove the post format prefix from the name property of the term objects created by get_terms(). * * @access private * @since 3.1.0 */ function _post_format_get_terms( $terms, $taxonomies, $args ) { if ( in_array( 'post_format', (array) $taxonomies ) ) { if ( isset( $args['fields'] ) && 'names' == $args['fields'] ) { foreach( $terms as $order => $name ) { $terms[$order] = get_post_format_string( str_replace( 'post-format-', '', $name ) ); } } else { foreach ( (array) $terms as $order => $term ) { if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) { $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } } } } return $terms; } add_filter( 'get_terms', '_post_format_get_terms', 10, 3 ); /** * Remove the post format prefix from the name property of the term objects created by wp_get_object_terms(). * * @access private * @since 3.1.0 */ function _post_format_wp_get_object_terms( $terms ) { foreach ( (array) $terms as $order => $term ) { if ( isset( $term->taxonomy ) && 'post_format' == $term->taxonomy ) { $terms[$order]->name = get_post_format_string( str_replace( 'post-format-', '', $term->slug ) ); } } return $terms; } add_filter( 'wp_get_object_terms', '_post_format_wp_get_object_terms' ); ?>
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