fix searching artists and albums

apps/media/lib_collection.php

@@ -121,14 +121,19 @@ class OC_MEDIA_COLLECTION{
 	* @return array the list of artists found
 	*/
 	static public function getArtists($search='%',$exact=false){
+		$uid=self::$uid;
+		if(empty($uid)){
+			$uid=self::$uid=$_SESSION['user_id'];
+		}
 		if(!$exact and $search!='%'){
 			$search="%$search%";
 		}elseif($search==''){
 			$search='%';
 		}
-		$query=OC_DB::prepare("SELECT DISTINCT *PREFIX*media_artists.artist_name AS artist_name , *PREFIX*media_artists.artist_id AS artist_id FROM *PREFIX*media_artists
-			INNER JOIN *PREFIX*media_songs ON *PREFIX*media_artists.artist_id=*PREFIX*media_songs.song_artist WHERE artist_name LIKE ? AND *PREFIX*media_songs.song_user=? ORDER BY artist_name");
-		return $query->execute(array($search,self::$uid))->fetchAll();
+		$query=OC_DB::prepare("SELECT DISTINCT artist_name, artist_id FROM *PREFIX*media_artists
+			INNER JOIN *PREFIX*media_songs ON artist_id=song_artist WHERE artist_name LIKE ? AND song_user=? ORDER BY artist_name");
+		$result=$query->execute(array($search,self::$uid));
+		return $result->fetchAll();
 	}
 	
 	/**
@@ -159,6 +164,10 @@ class OC_MEDIA_COLLECTION{
 	* @return array the list of albums found
 	*/
 	static public function getAlbums($artist=0,$search='%',$exact=false){
+		$uid=self::$uid;
+		if(empty($uid)){
+			$uid=self::$uid=$_SESSION['user_id'];
+		}
 		$cmd="SELECT DISTINCT album_name, album_artist, album_id
 			FROM *PREFIX*media_albums INNER JOIN *PREFIX*media_songs ON album_id=song_album WHERE song_user=? ";
 		$params=array(self::$uid);