Ticket #21003: comment.php.patch

comment.php

@@ -190 +190 @@
  * @since 3.1.0
  */
 class WP_Comment_Query {
+        /**
+         * Metadata query container
+         *
+         * @since 3.?
+         * @access public
+         * @var object WP_Meta_Query
+         */
+        var $meta_query = false;
 
         /**
          * Execute the query
@@ -222 +230 @@
                         'type' => '',
                         'user_id' => '',
                         'search' => '',
-                        'count' => false
+                        'count' => false,
+                        'meta_key' => '',
+                        'meta_value' => '',
+                        'meta_query' => '',
                 );
 
                 $this->query_vars = wp_parse_args( $query_vars, $defaults );
+                // Parse meta query
+                $this->meta_query = new WP_Meta_Query();
+                $this->meta_query->parse_query_vars( $this->query_vars );
+
                 do_action_ref_array( 'pre_get_comments', array( &$this ) );
                 extract( $this->query_vars, EXTR_SKIP );
 
@@ -259 +274 @@
 
                 if ( ! empty( $orderby ) ) {
                         $ordersby = is_array($orderby) ? $orderby : preg_split('/[,\s]/', $orderby);
-                        $ordersby = array_intersect(
-                                $ordersby,
-                                array(
-                                        'comment_agent',
-                                        'comment_approved',
-                                        'comment_author',
-                                        'comment_author_email',
-                                        'comment_author_IP',
-                                        'comment_author_url',
-                                        'comment_content',
-                                        'comment_date',
-                                        'comment_date_gmt',
-                                        'comment_ID',
-                                        'comment_karma',
-                                        'comment_parent',
-                                        'comment_post_ID',
-                                        'comment_type',
-                                        'user_id',
-                                )
+                        $allowed_keys = array(
+                                'comment_agent',
+                                'comment_approved',
+                                'comment_author',
+                                'comment_author_email',
+                                'comment_author_IP',
+                                'comment_author_url',
+                                'comment_content',
+                                'comment_date',
+                                'comment_date_gmt',
+                                'comment_ID',
+                                'comment_karma',
+                                'comment_parent',
+                                'comment_post_ID',
+                                'comment_type',
+                                'user_id',
                         );
+                        if ( !empty($this->query_vars['meta_key']) ) {
+                                $allowed_keys[] = $q['meta_key'];
+                                $allowed_keys[] = 'meta_value';
+                                $allowed_keys[] = 'meta_value_num';
+                        }
+                        $ordersby = array_intersect( $ordersby, $allowed_keys );
+                        foreach ($ordersby as $key => $value) {
+                                if ( $value == $q['meta_key'] || $value == 'meta_value' ) {
+                                        $ordersby[$key] = "$wpdb->commentmeta.meta_value";
+                                } elseif ( $value == 'meta_value_num' ) {
+                                        $ordersby[$key] = "$wpdb->commentmeta.meta_value+0";
+                                }
+                        }
                         $orderby = empty( $ordersby ) ? 'comment_date_gmt' : implode(', ', $ordersby);
                 } else {
                         $orderby = 'comment_date_gmt';
@@ -331 +356 @@
                                 $where .= $wpdb->prepare( " AND {$wpdb->posts}.{$field_name} = %s", $field_value );
                 }
 
+                if ( !empty( $this->meta_query->queries ) ) {
+                        $clauses = $this->meta_query->get_sql( 'comment', $wpdb->comments, 'comment_ID', $this );
+                        $join .= $clauses['join'];
+                        $where .= $clauses['where'];
+                }
+
                 $pieces = array( 'fields', 'join', 'where', 'orderby', 'order', 'limits' );
                 $clauses = apply_filters_ref_array( 'comments_clauses', array( compact( $pieces ), &$this ) );
                 foreach ( $pieces as $piece )