public function actionDeleteonemoment()
 {
     $id = $_POST['moment'];
     $moment = new Moments();
     //		$momenttop=new MomentTop();
     //		$thetop=MomentTop::find(['moment_id'=>$id]);
     //		$thetop->delete();
     if ($thetop = MomentTop::find()->where(['moment_id' => $id])->one()) {
         $thetop->delete();
     }
     $moment->deleteOneMoment($id);
     echo '{"success":true}';
 }