调整数据格式

@@ -69,7 +69,7 @@ class MusicianSongService extends Service
                     }
                     }
                 }
                 }
             }
             }
-            $item->setAttribute('role', array_unique($role));
+            $item->setAttribute('role', array_values(array_unique($role)));
             unset($item->contractDetail, $item->publish_song, $item->coverResource);
             unset($item->contractDetail, $item->publish_song, $item->coverResource);
         }
         }