/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = Usertoapp::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     if ($params != false && !empty($params['UsertoappSearch'])) {
         //$b=$a;
         //=app::find()->where("name= :name",[':name'=>'QQ'])->one();
         //if()
         foreach ($params['UsertoappSearch'] as $name => $value1) {
             if ($name === 'appid' && $value1 != null) {
                 $appinfo = app::findOne(['name' => $params['UsertoappSearch']['appid']]);
                 $this->value = $appinfo['id'];
                 if ($appinfo == null) {
                     $this->value = 0;
                 }
             }
             if ($name === 'userid' && $value1 != null) {
                 $appinfo = User::findOne(['phone' => $params['UsertoappSearch']['userid']]);
                 $this->userinc = $appinfo['id'];
                 if ($appinfo == null) {
                     $this->userinc = 0;
                 }
             }
         }
     }
     if (!$this->validate()) {
         // uncomment the following line if you do not want to return any records when validation fails
         // $query->where('0=1');
         return $dataProvider;
     }
     $query->andFilterWhere(['userid' => $this->userinc, 'appid' => $this->value, 'created_at' => $this->created_at]);
     return $dataProvider;
 }
 public function actionDelete()
 {
     $usertoapp = new Usertoapp();
     $data = Yii::$app->request->post();
     $appl = new Appl();
     $count = $usertoapp->find()->where(['userid' => $data['userid'], 'appid' => $data['appid']])->one();
     if ($count) {
         $count->delete();
         echo json_encode(array('flag' => 1, 'msg' => 'Success to delete your app!'));
     } else {
         echo json_encode(array('flag' => 0, 'msg' => 'You have not downloaded this app!'));
         exit;
     }
 }