Ticket #18778: transform_query_filters.diff

wp-includes/taxonomy.php

@@ -761 +761 @@
                         case 'slug':
                         case 'name':
                                 $terms = "'" . implode( "','", array_map( 'sanitize_title_for_query', $query['terms'] ) ) . "'";
-                                $terms = $wpdb->get_col( "
+                                $sql_query = "
                                         SELECT $wpdb->term_taxonomy.$resulting_field
                                         FROM $wpdb->term_taxonomy
                                         INNER JOIN $wpdb->terms USING (term_id)
                                         WHERE taxonomy = '{$query['taxonomy']}'
                                         AND $wpdb->terms.{$query['field']} IN ($terms)
-                                " );
+                                ";
+                                $terms = apply_filters( 'transform_query_' . $query['field'], false, $sql_query );
+                                if ( false === $terms )
+                                        $terms = $wpdb->get_col( $sql_query );
                                 break;
 
                         default:
                                 $terms = implode( ',', array_map( 'intval', $query['terms'] ) );
-                                $terms = $wpdb->get_col( "
+                                $sql_query = "
                                         SELECT $resulting_field
                                         FROM $wpdb->term_taxonomy
                                         WHERE taxonomy = '{$query['taxonomy']}'
                                         AND term_id IN ($terms)
-                                " );
+                                ";
+                                $terms = apply_filters( 'transform_query_default', false, $sql_query );
+                                if ( false === $terms )
+                                        $terms = $wpdb->get_col( $sql_query );
                 }
 
                 if ( 'AND' == $query['operator'] && count( $terms ) < count( $query['terms'] ) ) {