Closes #116: Groups join clears invite flags

http://trac.elgg.org/elgg/ticket/116

git-svn-id: https://code.elgg.org/elgg/trunk@1434 36083f99-b078-4883-b0ff-0f9b5a30f544

1 files changed, 12 insertions, 5 deletions

diff --git a/engine/lib/metadata.php b/engine/lib/metadata.php
index 1a8c58a2e..52c01c5e8 100644
--- a/engine/lib/metadata.php
+++ b/engine/lib/metadata.php
@@ -150,18 +150,25 @@
 	}
 	

 	/**

-	 * Removes metadata on an entity with a particular name

+	 * Removes metadata on an entity with a particular name, optionally with a given value.

 	 *

 	 * @param int $entity_guid The entity GUID

-	 * @param string $name The name of the entity

+	 * @param string $name The name of the metadata
+	 * @param string $value The optional value of the item (useful for removing a single item in a multiple set)

 	 * @return true|false Depending on success

 	 */

-	function remove_metadata($entity_guid, $name) {

+	function remove_metadata($entity_guid, $name, $value = "") {

 		

 		global $CONFIG;

 		$entity_guid = (int) $entity_guid;

-		$name = sanitise_string(trim($name));

-		if ($existing = get_data("SELECT * from {$CONFIG->dbprefix}metadata WHERE entity_guid = $entity_guid and name_id=" . add_metastring($name))) {

+		$name = sanitise_string($name);
+		$value = sanitise_string($value);
+
+		$query = "SELECT * from {$CONFIG->dbprefix}metadata WHERE entity_guid = $entity_guid and name_id=" . add_metastring($name);
+		if ($value!="")
+			$query .= " and value_id=" . add_metastring($value);
+		

+		if ($existing = get_data($query)) {

 			foreach($existing as $ex)

 				delete_metadata($ex->id);

 			return true;