redis serialize

@@ -44,11 +44,7 @@ class LivingController extends BaseController
                 ->createCommand('SELECT MAX(update_time),count(*) FROM {{%room}} WHERE best!="0" AND find_in_set(:app,app)')
                 ->createCommand('SELECT MAX(update_time),count(*) FROM {{%room}} WHERE best!="0" AND find_in_set(:app,app)')
                 ->bindValue(':app', $this->app)
                 ->bindValue(':app', $this->app)
                 ->getRawSql()]);
                 ->getRawSql()]);
-            $this->cache->set($key, json_encode($ret), Yii::$app->params['defaultCacheExpire'], $dependency);
-        }
-
-        if (is_string($ret)){
-            $ret = json_decode($ret,true);
+            $this->cache->set($key, $ret, Yii::$app->params['defaultCacheExpire'], $dependency);
         }
         }
 
 
         $ret = array_values(array_filter($ret,function($row){
         $ret = array_values(array_filter($ret,function($row){