add inventory admin fix, add procurement update

backend/controllers/InventoryItemController.php

@@ -12,6 +12,7 @@ use backend\models\InventoryItemForm;
 use common\models\Inventory;
 use yii\helpers\Url;
 use common\models\Product;
+use yii\web\NotAcceptableHttpException;
 
 /**
  * InventoryItemController implements the CRUD actions for InventoryItem model.
@@ -177,7 +178,11 @@ class InventoryItemController extends Controller
     {
         $model = $this->findModel($id);
         $inventory = Inventory::findOne($model->id_inventory);
-
+		
+        if ( !$inventory->isOpen()){
+        	throw new NotAcceptableHttpException("A leltár elem nem található");
+        }
+	
         if ($model->load(Yii::$app->request->post()) && $model->save()) {
         	
         	$prev = Url::previous("inventory-item-index");