WordPress 3.3.2-scripts
[autoinstalls/wordpress.git] / wp-includes / query.php
index 0f394f0fa1e0ac44f490f3a061420eb355d7f5f0..0fcbf94cb51e6b5819d86816581a1da59d5f873e 100644 (file)
@@ -89,7 +89,7 @@ function set_query_var($var, $value) {
  */
 function &query_posts($query) {
        unset($GLOBALS['wp_query']);
-       $GLOBALS['wp_query'] =& new WP_Query();
+       $GLOBALS['wp_query'] = new WP_Query();
        return $GLOBALS['wp_query']->query($query);
 }
 
@@ -105,7 +105,7 @@ function &query_posts($query) {
  */
 function wp_reset_query() {
        unset($GLOBALS['wp_query']);
-       $GLOBALS['wp_query'] =& $GLOBALS['wp_the_query'];
+       $GLOBALS['wp_query'] = $GLOBALS['wp_the_query'];
        wp_reset_postdata();
 }
 
@@ -715,6 +715,18 @@ function is_404() {
        return $wp_query->is_404();
 }
 
+/**
+ * Is the query the main query?
+ *
+ * @since 3.3.0
+ *
+ * @return bool
+ */
+function is_main_query() {
+       global $wp_query;
+       return $wp_query->is_main_query();
+}
+
 /*
  * The Loop.  Post loop control.
  */
@@ -848,6 +860,15 @@ class WP_Query {
         */
        var $tax_query;
 
+       /**
+        * Metadata query container
+        *
+        * @since 3.2.0
+        * @access public
+        * @var object WP_Meta_Query
+        */
+       var $meta_query = false;
+
        /**
         * Holds the data for a single object that is queried.
         *
@@ -1231,13 +1252,31 @@ class WP_Query {
        var $is_post_type_archive = false;
 
        /**
-        * Whether the tax query has been parsed once.
+        * Stores the ->query_vars state like md5(serialize( $this->query_vars ) ) so we know
+        * whether we have to re-parse because something has changed
         *
         * @since 3.1.0
         * @access private
+        */
+       var $query_vars_hash = false;
+
+       /**
+        * Whether query vars have changed since the initial parse_query() call.  Used to catch modifications to query vars made
+        * via pre_get_posts hooks.
+        *
+        * @since 3.1.1
+        * @access private
+        */
+       var $query_vars_changed = true;
+
+       /**
+        * Set if post thumbnails are cached
+        *
+        * @since 3.2.0
+        * @access public
         * @var bool
         */
-       var $parsed_tax_query = false;
+        var $thumbnails_cached = false;
 
        /**
         * Resets query flags to false.
@@ -1395,6 +1434,7 @@ class WP_Query {
 
                $this->query_vars = $this->fill_query_vars($this->query_vars);
                $qv = &$this->query_vars;
+               $this->query_vars_changed = true;
 
                if ( ! empty($qv['robots']) )
                        $this->is_robots = true;
@@ -1496,11 +1536,11 @@ class WP_Query {
                                $this->is_date = true;
                        }
 
-                       $this->parsed_tax_query = false;
+                       $this->query_vars_hash = false;
                        $this->parse_tax_query( $qv );
 
                        foreach ( $this->tax_query->queries as $tax_query ) {
-                               if ( 'IN' == $tax_query['operator'] ) {
+                               if ( 'NOT IN' != $tax_query['operator'] ) {
                                        switch ( $tax_query['taxonomy'] ) {
                                                case 'category':
                                                        $this->is_category = true;
@@ -1515,8 +1555,6 @@ class WP_Query {
                        }
                        unset( $tax_query );
 
-                       _parse_meta_query( $qv );
-
                        if ( empty($qv['author']) || ($qv['author'] == '0') ) {
                                $this->is_author = false;
                        } else {
@@ -1615,8 +1653,12 @@ class WP_Query {
                                $qv['post_type'] = sanitize_key($qv['post_type']);
                }
 
-               if ( !empty($qv['post_status']) )
-                       $qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
+               if ( ! empty( $qv['post_status'] ) ) {
+                       if ( is_array( $qv['post_status'] ) )
+                               $qv['post_status'] = array_map('sanitize_key', $qv['post_status']);
+                       else
+                               $qv['post_status'] = preg_replace('|[^a-z0-9_,-]|', '', $qv['post_status']);
+               }
 
                if ( $this->is_posts_page && ( ! isset($qv['withcomments']) || ! $qv['withcomments'] ) )
                        $this->is_comment_feed = false;
@@ -1627,6 +1669,9 @@ class WP_Query {
                if ( '404' == $qv['error'] )
                        $this->set_404();
 
+               $this->query_vars_hash = md5( serialize( $this->query_vars ) );
+               $this->query_vars_changed = false;
+
                do_action_ref_array('parse_query', array(&$this));
        }
 
@@ -1654,6 +1699,9 @@ class WP_Query {
                }
 
                foreach ( $GLOBALS['wp_taxonomies'] as $taxonomy => $t ) {
+                       if ( 'post_tag' == $taxonomy )
+                               continue;       // Handled further down in the $q['tag'] block
+
                        if ( $t->query_var && !empty( $q[$t->query_var] ) ) {
                                $tax_query_defaults = array(
                                        'taxonomy' => $taxonomy,
@@ -1682,7 +1730,7 @@ class WP_Query {
                }
 
                // Category stuff
-               if ( !empty($q['cat']) && '0' != $q['cat'] && !$this->is_singular && !$this->parsed_tax_query ) {
+               if ( !empty($q['cat']) && '0' != $q['cat'] && !$this->is_singular && $this->query_vars_changed ) {
                        $q['cat'] = ''.urldecode($q['cat']).'';
                        $q['cat'] = addslashes_gpc($q['cat']);
                        $cat_array = preg_split('/[,\s]+/', $q['cat']);
@@ -1736,7 +1784,7 @@ class WP_Query {
                }
 
                // Tag stuff
-               if ( '' != $q['tag'] && !$this->is_singular && !$this->parsed_tax_query ) {
+               if ( '' != $q['tag'] && !$this->is_singular && $this->query_vars_changed ) {
                        if ( strpos($q['tag'], ',') !== false ) {
                                $tags = preg_split('/[,\s]+/', $q['tag']);
                                foreach ( (array) $tags as $tag ) {
@@ -1790,7 +1838,7 @@ class WP_Query {
                }
 
                if ( !empty($q['tag_slug__in']) ) {
-                       $q['tag_slug__in'] = array_map('sanitize_title', (array) $q['tag_slug__in']);
+                       $q['tag_slug__in'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__in'] ) );
                        $tax_query[] = array(
                                'taxonomy' => 'post_tag',
                                'terms' => $q['tag_slug__in'],
@@ -1799,7 +1847,7 @@ class WP_Query {
                }
 
                if ( !empty($q['tag_slug__and']) ) {
-                       $q['tag_slug__and'] = array_map('sanitize_title', (array) $q['tag_slug__and']);
+                       $q['tag_slug__and'] = array_map('sanitize_title_for_query', array_unique( (array) $q['tag_slug__and'] ) );
                        $tax_query[] = array(
                                'taxonomy' => 'post_tag',
                                'terms' => $q['tag_slug__and'],
@@ -1808,8 +1856,6 @@ class WP_Query {
                        );
                }
 
-               $this->parsed_tax_query = true;
-
                $this->tax_query = new WP_Tax_Query( $tax_query );
        }
 
@@ -1879,8 +1925,21 @@ class WP_Query {
                // Shorthand.
                $q = &$this->query_vars;
 
+               // Fill again in case pre_get_posts unset some vars.
                $q = $this->fill_query_vars($q);
 
+               // Parse meta query
+               $this->meta_query = new WP_Meta_Query();
+               $this->meta_query->parse_query_vars( $q );
+
+               // Set a flag if a pre_get_posts hook changed the query vars.
+               $hash = md5( serialize( $this->query_vars ) );
+               if ( $hash != $this->query_vars_hash ) {
+                       $this->query_vars_changed = true;
+                       $this->query_vars_hash = $hash;
+               }
+               unset($hash);
+
                // First let's clear some variables
                $distinct = '';
                $whichauthor = '';
@@ -2090,7 +2149,7 @@ class WP_Query {
                if ( intval($q['comments_popup']) )
                        $q['p'] = absint($q['comments_popup']);
 
-               // If an attachment is requested by number, let it supercede any post number.
+               // If an attachment is requested by number, let it supersede any post number.
                if ( $q['attachment_id'] )
                        $q['p'] = absint($q['attachment_id']);
 
@@ -2132,9 +2191,6 @@ class WP_Query {
                                $search .= "{$searchand}(($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}'))";
                                $searchand = ' AND ';
                        }
-                       $term = esc_sql( like_escape( $q['s'] ) );
-                       if ( empty($q['sentence']) && count($q['search_terms']) > 1 && $q['search_terms'][0] != $q['s'] )
-                               $search .= " OR ($wpdb->posts.post_title LIKE '{$n}{$term}{$n}') OR ($wpdb->posts.post_content LIKE '{$n}{$term}{$n}')";
 
                        if ( !empty($search) ) {
                                $search = " AND ({$search}) ";
@@ -2147,12 +2203,14 @@ class WP_Query {
                $search = apply_filters_ref_array('posts_search', array( $search, &$this ) );
 
                // Taxonomies
-               $this->parse_tax_query( $q );
+               if ( !$this->is_singular ) {
+                       $this->parse_tax_query( $q );
 
-               $clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );
+                       $clauses = $this->tax_query->get_sql( $wpdb->posts, 'ID' );
 
-               $join .= $clauses['join'];
-               $where .= $clauses['where'];
+                       $join .= $clauses['join'];
+                       $where .= $clauses['where'];
+               }
 
                if ( $this->is_tax ) {
                        if ( empty($post_type) ) {
@@ -2206,7 +2264,7 @@ class WP_Query {
                        }
                }
 
-               if ( !empty( $this->tax_query->queries ) || !empty( $q['meta_key'] ) ) {
+               if ( !empty( $this->tax_query->queries ) || !empty( $this->meta_query->queries ) ) {
                        $groupby = "{$wpdb->posts}.ID";
                }
 
@@ -2242,7 +2300,7 @@ class WP_Query {
                                if ( $q['author_name'][ count($q['author_name'])-1 ] ) {
                                        $q['author_name'] = $q['author_name'][count($q['author_name'])-1]; // no trailing slash
                                } else {
-                                       $q['author_name'] = $q['author_name'][count($q['author_name'])-2]; // there was a trailling slash
+                                       $q['author_name'] = $q['author_name'][count($q['author_name'])-2]; // there was a trailing slash
                                }
                        }
                        $q['author_name'] = sanitize_title_for_query( $q['author_name'] );
@@ -2266,12 +2324,12 @@ class WP_Query {
 
                // Order by
                if ( empty($q['orderby']) ) {
-                       $q['orderby'] = "$wpdb->posts.post_date " . $q['order'];
+                       $orderby = "$wpdb->posts.post_date " . $q['order'];
                } elseif ( 'none' == $q['orderby'] ) {
-                       $q['orderby'] = '';
+                       $orderby = '';
                } else {
                        // Used to filter values
-                       $allowed_keys = array('author', 'date', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand', 'comment_count');
+                       $allowed_keys = array('name', 'author', 'date', 'title', 'modified', 'menu_order', 'parent', 'ID', 'rand', 'comment_count');
                        if ( !empty($q['meta_key']) ) {
                                $allowed_keys[] = $q['meta_key'];
                                $allowed_keys[] = 'meta_value';
@@ -2279,10 +2337,9 @@ class WP_Query {
                        }
                        $q['orderby'] = urldecode($q['orderby']);
                        $q['orderby'] = addslashes_gpc($q['orderby']);
-                       $orderby_array = explode(' ', $q['orderby']);
-                       $q['orderby'] = '';
 
-                       foreach ( $orderby_array as $i => $orderby ) {
+                       $orderby_array = array();
+                       foreach ( explode( ' ', $q['orderby'] ) as $i => $orderby ) {
                                // Only allow certain values for safety
                                if ( ! in_array($orderby, $allowed_keys) )
                                        continue;
@@ -2310,15 +2367,14 @@ class WP_Query {
                                                $orderby = "$wpdb->posts.post_" . $orderby;
                                }
 
-                               $q['orderby'] .= (($i == 0) ? '' : ',') . $orderby;
+                               $orderby_array[] = $orderby;
                        }
+                       $orderby = implode( ',', $orderby_array );
 
-                       // append ASC or DESC at the end
-                       if ( !empty($q['orderby']))
-                               $q['orderby'] .= " {$q['order']}";
-
-                       if ( empty($q['orderby']) )
-                               $q['orderby'] = "$wpdb->posts.post_date ".$q['order'];
+                       if ( empty( $orderby ) )
+                               $orderby = "$wpdb->posts.post_date ".$q['order'];
+                       else
+                               $orderby .= " {$q['order']}";
                }
 
                if ( is_array( $post_type ) ) {
@@ -2329,13 +2385,10 @@ class WP_Query {
                                $post_type_cap = $post_type;
                }
 
-               $exclude_post_types = '';
-               $in_search_post_types = get_post_types( array('exclude_from_search' => false) );
-               if ( ! empty( $in_search_post_types ) )
-                       $exclude_post_types .= $wpdb->prepare(" AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')");
-
                if ( 'any' == $post_type ) {
-                       $where .= $exclude_post_types;
+                       $in_search_post_types = get_post_types( array('exclude_from_search' => false) );
+                       if ( ! empty( $in_search_post_types ) )
+                               $where .= $wpdb->prepare(" AND $wpdb->posts.post_type IN ('" . join("', '", $in_search_post_types ) . "')");
                } elseif ( !empty( $post_type ) && is_array( $post_type ) ) {
                        $where .= " AND $wpdb->posts.post_type IN ('" . join("', '", $post_type) . "')";
                } elseif ( ! empty( $post_type ) ) {
@@ -2364,13 +2417,15 @@ class WP_Query {
                        $read_private_cap = 'read_private_' . $post_type_cap . 's';
                }
 
-               if ( isset($q['post_status']) && '' != $q['post_status'] ) {
+               if ( ! empty( $q['post_status'] ) ) {
                        $statuswheres = array();
-                       $q_status = explode(',', $q['post_status']);
+                       $q_status = $q['post_status'];
+                       if ( ! is_array( $q_status ) )
+                               $q_status = explode(',', $q_status);
                        $r_status = array();
                        $p_status = array();
                        $e_status = array();
-                       if ( $q['post_status'] == 'any' ) {
+                       if ( in_array('any', $q_status) ) {
                                foreach ( get_post_stati( array('exclude_from_search' => true) ) as $status )
                                        $e_status[] = "$wpdb->posts.post_status <> '$status'";
                        } else {
@@ -2439,8 +2494,8 @@ class WP_Query {
                        $where .= ')';
                }
 
-               if ( !empty( $q['meta_query'] ) ) {
-                       $clauses = call_user_func_array( '_get_meta_sql', array( $q['meta_query'], 'post', $wpdb->posts, 'ID', &$this) );
+               if ( !empty( $this->meta_query->queries ) ) {
+                       $clauses = $this->meta_query->get_sql( 'post', $wpdb->posts, 'ID', $this );
                        $join .= $clauses['join'];
                        $where .= $clauses['where'];
                }
@@ -2507,8 +2562,6 @@ class WP_Query {
                                $where = "AND 0";
                }
 
-               $orderby = $q['orderby'];
-
                $pieces = array( 'where', 'groupby', 'join', 'orderby', 'distinct', 'fields', 'limits' );
 
                // Apply post-paging filters on where and join.  Only plugins that
@@ -2689,9 +2742,9 @@ class WP_Query {
 
                $this->post_count = count($this->posts);
 
-               // Sanitize before caching so it'll only get done once
-               for ( $i = 0; $i < $this->post_count; $i++ ) {
-                       $this->posts[$i] = sanitize_post($this->posts[$i], 'raw');
+               // Always sanitize
+               foreach ( $this->posts as $i => $post ) {
+                       $this->posts[$i] = sanitize_post( $post, 'raw' );
                }
 
                if ( $q['cache_results'] )
@@ -2892,6 +2945,9 @@ class WP_Query {
                        if ( $term && ! is_wp_error($term) )  {
                                $this->queried_object = $term;
                                $this->queried_object_id = (int) $term->term_id;
+
+                               if ( $this->is_category )
+                                       _make_cat_compat( $this->queried_object );
                        }
                } elseif ( $this->is_post_type_archive ) {
                        $this->queried_object = get_post_type_object( $this->get('post_type') );
@@ -2929,7 +2985,7 @@ class WP_Query {
        }
 
        /**
-        * PHP4 type constructor.
+        * Constructor.
         *
         * Sets up the WordPress query, if parameter is not empty.
         *
@@ -2939,7 +2995,7 @@ class WP_Query {
         * @param string $query URL query string.
         * @return WP_Query
         */
-       function WP_Query($query = '') {
+       function __construct($query = '') {
                if ( ! empty($query) ) {
                        $this->query($query);
                }
@@ -3420,6 +3476,18 @@ class WP_Query {
        function is_404() {
                return (bool) $this->is_404;
        }
+
+       /**
+        * Is the query the main query?
+        *
+        * @since 3.3.0
+        *
+        * @return bool
+        */
+       function is_main_query() {
+               global $wp_the_query;
+               return $wp_the_query === $this;
+       }
 }
 
 /**
@@ -3446,6 +3514,12 @@ function wp_old_slug_redirect() {
                else
                        $post_type = 'post';
 
+               if ( is_array( $post_type ) ) {
+                       if ( count( $post_type ) > 1 )
+                               return;
+                       $post_type = array_shift( $post_type );
+               }
+
                // Do not attempt redirect for hierarchical post types
                if ( is_post_type_hierarchical( $post_type ) )
                        return;
@@ -3471,7 +3545,7 @@ function wp_old_slug_redirect() {
                if ( !$link )
                        return;
 
-               wp_redirect($link, '301'); // Permanent redirect
+               wp_redirect( $link, 301 ); // Permanent redirect
                exit;
        endif;
 }