Make $userId mandatory for searchByTags

$userId is now a mandatory parameter for searchByTags.

Also fixed some places in the code where the argument was missing (Node
API and View)

1 files changed, 1 insertions, 1 deletions

diff --git a/lib/private/files/cache/wrapper/cachewrapper.php b/lib/private/files/cache/wrapper/cachewrapper.php
index 4da7c7ecf6f..83811520e4b 100644
--- a/lib/private/files/cache/wrapper/cachewrapper.php
+++ b/lib/private/files/cache/wrapper/cachewrapper.php
@@ -187,7 +187,7 @@ class CacheWrapper extends Cache {
 	 * @param string $userId owner of the tags
 	 * @return array file data
 	 */
-	public function searchByTag($tag, $userId = null) {
+	public function searchByTag($tag, $userId) {
 		$results = $this->cache->searchByTag($tag, $userId);
 		return array_map(array($this, 'formatCacheEntry'), $results);
 	}