1 files changed, 18 insertions, 0 deletions
diff --git a/lib/group/backend.php b/lib/group/backend.php
index 9ff432d0663..ceb2d9242dd 100644
--- a/lib/group/backend.php
+++ b/lib/group/backend.php
@@ -133,5 +133,23 @@ abstract class OC_Group_Backend implements OC_Group_Interface {
 	public function usersInGroup($gid, $search = '', $limit = -1, $offset = 0) {
 		return array();
 	}
+	
+	/**
+	 * @brief get a list of all display names in a group
+	 * @param string $gid
+	 * @param string $search
+	 * @param int $limit
+	 * @param int $offset
+	 * @return array with display names (key) and user ids (value)
+	 */
+	public function DisplayNamesInGroup($gid, $search = '', $limit = -1, $offset = 0) {
+		$displayNames = '';
+		$users = $this->usersInGroup($gid, $search, $limit, $offset);
+		foreach ( $users as $user ) {
+			$DisplayNames[$user] = $user;
+		}
+			
+		return $DisplayNames;
+	}
 
 }