/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = GradeFourForm::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     $this->load($params);
     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(['id' => $this->id, 'grade_protection' => $this->grade_protection, 'enrolled_id' => $this->enrolled_id, 'grading_period' => $this->grading_period, 'core_value_1' => $this->core_value_1, 'core_value_2' => $this->core_value_2, 'core_value_3' => $this->core_value_3, 'core_value_4' => $this->core_value_4, 'subject_1' => $this->subject_1, 'subject_2' => $this->subject_2, 'subject_3' => $this->subject_3, 'subject_4' => $this->subject_4, 'subject_5' => $this->subject_5, 'subject_6' => $this->subject_6, 'subject_7' => $this->subject_7, 'subject_8' => $this->subject_8]);
     return $dataProvider;
 }
 /**
  * Finds the GradeFourForm model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param string $id
  * @return GradeFourForm the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = GradeFourForm::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }