From d8d9ce784ba2a05776f194b7923dafd02ccd6391 Mon Sep 17 00:00:00 2001
From: marcus <marcus@36083f99-b078-4883-b0ff-0f9b5a30f544>
Date: Wed, 16 Jul 2008 09:36:07 +0000
Subject: 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
---
 engine/lib/metadata.php | 17 ++++++++++++-----
 1 file changed, 12 insertions(+), 5 deletions(-)

(limited to 'engine/lib/metadata.php')

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;
-- 
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