public function init()
 {
     if (is_callable($this->remap)) {
         $this->isClosure = true;
     } else {
         $this->isClosure = false;
         $this->remap = null;
     }
     //init dataProvider
     $this->dataProvider->prepare();
     return parent::init();
 }
 public function init()
 {
     //init dataProvider
     $this->dataProvider->prepare();
     return parent::init();
 }