Changeset 29964 for trunk/src/wp-includes/meta.php

Timestamp:

10/19/2014 06:53:55 PM (10 years ago)

Author:

boonebgorges

Message:

Make orderby=meta_value compatible with meta_query when relation=OR.

Passing orderby=meta_value and meta_key=foo to WP_Query should require that
each matched post have a meta value with the key 'foo'. To make this
requirement compatible with meta_query params that have the relation OR, we
nest the meta_query param, and join it using AND to a meta_query clause
generated from the meta_key/meta_compare/meta_type query vars.

Fixes #25538.

File:

• trunk/src/wp-includes/meta.php (modified) (1 diff)

trunk/src/wp-includes/meta.php

@@ -1058 +1058 @@
         $meta_query = array();
 
-        // Simple query needs to be first for orderby=meta_value to work correctly.
+        /*
+         * For orderby=meta_value to work correctly, simple query needs to be
+         * first (so that its table join is against an unaliased meta table) and
+         * needs to be its own clause (so it doesn't interfere with the logic of
+         * the rest of the meta_query).
+         */
+        $primary_meta_query = array();
         foreach ( array( 'key', 'compare', 'type' ) as $key ) {
-            if ( !empty( $qv[ "meta_$key" ] ) )
-                $meta_query[0][ $key ] = $qv[ "meta_$key" ];
+            if ( ! empty( $qv[ "meta_$key" ] ) ) {
+                $primary_meta_query[ $key ] = $qv[ "meta_$key" ];
+            }
         }
 
         // WP_Query sets 'meta_value' = '' by default.
-        if ( isset( $qv[ 'meta_value' ] ) && '' !== $qv[ 'meta_value' ] && ( ! is_array( $qv[ 'meta_value' ] ) || $qv[ 'meta_value' ] ) )
-            $meta_query[0]['value'] = $qv[ 'meta_value' ];
-
-        if ( !empty( $qv['meta_query'] ) && is_array( $qv['meta_query'] ) ) {
-            $meta_query = array_merge( $meta_query, $qv['meta_query'] );
+        if ( isset( $qv['meta_value'] ) && '' !== $qv['meta_value'] && ( ! is_array( $qv['meta_value'] ) || $qv['meta_value'] ) ) {
+            $primary_meta_query['value'] = $qv['meta_value'];
+        }
+
+        $existing_meta_query = isset( $qv['meta_query'] ) && is_array( $qv['meta_query'] ) ? $qv['meta_query'] : array();
+
+        if ( ! empty( $primary_meta_query ) && ! empty( $existing_meta_query ) ) {
+            $meta_query = array(
+                'relation' => 'AND',
+                $primary_meta_query,
+                $existing_meta_query,
+            );
+        } else if ( ! empty( $primary_meta_query ) ) {
+            $meta_query = array(
+                $primary_meta_query,
+            );
+        } else if ( ! empty( $existing_meta_query ) ) {
+            $meta_query = $existing_meta_query;
         }