public function getFormAttribs()
 {
     return ['customer' => ['type' => TabularForm::INPUT_HIDDEN, 'columnOptions' => ['hidden' => true]], 'name' => ['type' => TabularForm::INPUT_STATIC], 'measurement_type' => ['type' => TabularForm::INPUT_STATIC, 'value' => function ($m, $k, $i, $w) {
         return MaterialTypes::$measurementType[$m->measurement_type];
     }], 'price' => ['type' => TabularForm::INPUT_RAW, 'value' => function ($m, $k, $i, $w) {
         return Html::textInput("price[" . $k . "]", CustomerMaterialPrice::getPrice($k, $this->customer), ['class' => 'form-control']);
     }]];
 }
 public function actionGettripprice()
 {
     $material_id = $_POST['material'];
     $quantity = $_POST['quantity'];
     $customer_id = $_POST['customer'];
     $customerMaterialPrice = CustomerMaterialPrice::findOne(['customer_id' => $customer_id, 'material_id' => $material_id]);
     $price = $customerMaterialPrice->price;
     echo $total_price = $price * $quantity;
 }