/**
  * Creates data provider instance with search query applied
  *
  * @param array $params
  *
  * @return ActiveDataProvider
  */
 public function search($params)
 {
     $query = PersonsChildrenRecord::find();
     // add conditions that should always apply here
     $dataProvider = new ActiveDataProvider(['query' => $query, 'sort' => ['defaultOrder' => ['BirthYear' => SORT_DESC]]]);
     $this->load($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;
     }
     // grid filtering conditions
     $query->andFilterWhere(['ID' => $this->ID, 'PersonID' => $this->PersonID]);
     if (!empty($this->BirthYear)) {
         if (preg_match('/^(?:\\s*(<>|<=|>=|<|>|=)){1}(.*)$/', $this->BirthYear, $matches)) {
             $value = $matches[2];
             $op = $matches[1];
         } else {
             $value = $this->BirthYear;
             $op = '=';
         }
         if (!empty($value)) {
             $query->andWhere('`BirthYear`' . $op . $value);
         }
     }
     return $dataProvider;
 }
 /**
  * @param $personId
  * @return array|string|Response
  * @throws NotFoundHttpException
  */
 public function actionChildren($personId)
 {
     $model = $this->findModel($personId);
     $children = [];
     for ($i = 0; $i < 3; $i++) {
         $child = new PersonsChildrenRecord();
         $child->PersonID = $model->ID;
         $children[] = $child;
     }
     if (($errors = $this->performAjaxValidationMultiple($children)) !== null) {
         return $errors;
     }
     if (Model::loadMultiple($children, Yii::$app->request->post())) {
         foreach ($children as $child) {
             /** @var PersonsChildrenRecord $child */
             $child->create();
         }
         return $this->redirect(['/accounts/charge-balance', 'id' => $model->account->id]);
     } else {
         return $this->render('children', ['model' => $model, 'children' => $children]);
     }
 }
 /**
  * Finds the PersonsChildrenRecord model based on its primary key value.
  * If the model is not found, a 404 HTTP exception will be thrown.
  * @param integer $id
  * @return PersonsChildrenRecord the loaded model
  * @throws NotFoundHttpException if the model cannot be found
  */
 protected function findModel($id)
 {
     if (($model = PersonsChildrenRecord::findOne($id)) !== null) {
         return $model;
     } else {
         throw new NotFoundHttpException('The requested page does not exist.');
     }
 }
 /**
  * Количество детей
  * @return int|string
  */
 public function getChildrenCount()
 {
     return $this->hasMany(PersonsChildrenRecord::className(), ['PersonID' => 'ID'])->count();
 }