Changeset 14564

Timestamp:

05/11/2010 05:35:07 PM (16 years ago)

Author:

ryan

Message:

Don't update meta data when the new value matches the old value. fixes #13350

File:

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

trunk/wp-includes/meta.php

@@ -109 +109 @@
         if ( ! $meta_id = $wpdb->get_var( $wpdb->prepare( "SELECT $id_column FROM $table WHERE meta_key = %s AND $column = %d", $meta_key, $object_id ) ) )
                 return add_metadata($meta_type, $object_id, $meta_key, $meta_value);
+
+        // Compare existing value to new value if no prev value given and the key exists only once.
+        if ( empty($prev_value) ) {
+                $old_value = get_metadata($meta_type, $object_id, $meta_key);
+                if ( count($old_value) == 1 ) {
+                        if ( $old_value[0] == $meta_value )
+                                return false;
+                }
+        }
 
         $_meta_value = $meta_value;