public function search($params)
 {
     $query = ProductTypeHasDiagnos::find();
     $dataProvider = new ActiveDataProvider(['query' => $query]);
     if (!($this->load($params) && $this->validate())) {
         return $dataProvider;
     }
     $query->andFilterWhere(['diagnos_id' => $this->diagnos_id, 'product_type_id' => $this->product_type_id]);
     return $dataProvider;
 }
 /**
  * @return \yii\db\ActiveQuery
  */
 public function getProductTypeHasDiagnos()
 {
     return $this->hasMany(ProductTypeHasDiagnos::className(), ['product_type_id' => 'id']);
 }