public function actionContracts()
 {
     $model = new ContractsForm();
     if ($model->load(Yii::$app->request->post()) && $model->validate()) {
         $model->save();
         return $this->render('contracts-confirm', ['model' => $model]);
     } else {
         return $this->render('contracts', ['model' => $model]);
     }
 }
 public function getContractsForm()
 {
     return $this->hasMany(ContractsForm::className(), ['client_id' => 'id']);
 }