magento#737 Exception in Low stock report for product with another name on additional storeview

Author: AlexandrVolkov

app/code/Magento/InventoryLowQuantityNotification/Block/Adminhtml/Product/Lowstock/Grid.php

@@ -46,8 +46,29 @@ public function __construct(
      */
     protected function _prepareCollection(): GridWidget
     {
+        $website = $this->getRequest()->getParam('website');
+        $group = $this->getRequest()->getParam('group');
+        $store = $this->getRequest()->getParam('store');
+
+        if ($website) {
+            $storeIds = $this->_storeManager->getWebsite($website)->getStoreIds();
+            $storeId = array_pop($storeIds);
+        } elseif ($group) {
+            $storeIds = $this->_storeManager->getGroup($group)->getStoreIds();
+            $storeId = array_pop($storeIds);
+        } elseif ($store) {
+            $storeId = (int)$store;
+        } else {
+            $storeId = null;
+        }
+
         /** @var LowQuantityCollection $collection  */
         $collection = $this->lowQuantityCollectionFactory->create();
+
+        if ($storeId) {
+            $collection->addStoreFilter($storeId);
+        }
+
         $this->setCollection($collection);
 
         return parent::_prepareCollection();

app/code/Magento/InventoryLowQuantityNotification/Model/ResourceModel/LowQuantityCollection.php

@@ -46,6 +46,11 @@ class LowQuantityCollection extends AbstractCollection
      */
     private $attributeRepository;
 
+    /**
+     * @var int
+     */
+    private $filterStoreId;
+
     /**
      * @param EntityFactoryInterface $entityFactory
      * @param LoggerInterface $logger
@@ -83,6 +88,17 @@ public function __construct(
         );
     }
 
+    /**
+     * Sets store filter for use in catalog product name join
+     * @param $storeId
+     * @return $this
+     */
+    public function addStoreFilter($storeId)
+    {
+        $this->filterStoreId = (int)$storeId;
+        return $this;
+    }
+
     /**
      * @inheritdoc
      */
@@ -91,6 +107,16 @@ protected function _construct()
         $this->_init(SourceItemModel::class, SourceItemResourceModel::class);
     }
 
+    /**
+     * @inheritdoc
+     */
+    protected function _beforeLoad()
+    {
+        parent::_beforeLoad();
+        $this->joinCatalogProduct();
+        $this->addProductTypeFilter();
+        return $this;
+    }
     /**
      * @inheritdoc
      */
@@ -104,10 +130,8 @@ protected function _initSelect()
 
         $this->addFieldToSelect('*');
 
-        $this->joinCatalogProduct();
         $this->joinInventoryConfiguration();
 
-        $this->addProductTypeFilter();
         $this->addNotifyStockQtyFilter();
         $this->addEnabledSourceFilter();
 
@@ -135,10 +159,22 @@ private function joinCatalogProduct()
 
         $this->getSelect()->joinInner(
             ['product_entity_varchar' => $productEavVarcharTable],
-            'product_entity_varchar.entity_id = product_entity.entity_id AND product_entity_varchar.attribute_id = '
-                . $nameAttribute->getAttributeId(),
-            ['product_name' => 'value']
+            'product_entity_varchar.entity_id = product_entity.entity_id ' .
+            'AND product_entity_varchar.store_id = 0 ' .
+            'AND product_entity_varchar.attribute_id = ' . $nameAttribute->getAttributeId(),
+            []
         );
+        if ($this->filterStoreId) {
+            $this->getSelect()->joinLeft(
+                ['product_entity_varchar_store' => $productEavVarcharTable],
+                'product_entity_varchar_store.entity_id = product_entity.entity_id ' .
+                'AND product_entity_varchar_store.store_id = ' . $this->filterStoreId .
+                'AND product_entity_varchar_store.attribute_id = ' . $nameAttribute->getAttributeId(),
+                ['product_name' => 'IFNULL(product_entity_varchar_store.value, product_entity_varchar.value)']
+            );
+        } else {
+            $this->getSelect()->columns(['product_name' => 'product_entity_varchar.value']);
+        }
     }
 
     /**

app/code/Magento/InventoryLowQuantityNotification/Test/Integration/Model/ResourceModel/LowQuantityCollectionTest.php

@@ -35,6 +35,7 @@ protected function setUp()
      * @magentoDataFixture ../../../../app/code/Magento/InventoryApi/Test/_files/stock_source_links.php
      * @codingStandardsIgnoreLine
      * @magentoDataFixture ../../../../app/code/Magento/InventoryLowQuantityNotificationApi/Test/_files/source_item_configuration.php
+     * @magentoDataFixture ../../../../app/code/Magento/InventoryLowQuantityNotificationApi/Test/_files/product_multistore_name.php
      */
     public function testLowQuantityCollection()
     {

app/code/Magento/InventoryLowQuantityNotification/view/adminhtml/layout/reports_report_product_lowstock.xml

@@ -8,7 +8,6 @@
 <page xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:noNamespaceSchemaLocation="urn:magento:framework:View/Layout/etc/page_configuration.xsd">
     <update handle="inventorylowquantitynotification_lowstock_grid"/>
     <body>
-        <referenceBlock name="adminhtml.report.product.lowstock.store_switcher" remove="true"/>
         <referenceContainer name="content">
             <block class="Magento\Reports\Block\Adminhtml\Product\Lowstock" name="adminhtml.report.grid.container"/>
         </referenceContainer>

app/code/Magento/InventoryLowQuantityNotificationApi/Test/_files/product_multistore_name.php

@@ -0,0 +1,17 @@
+<?php
+/**
+ * Copyright © Magento, Inc. All rights reserved.
+ * See COPYING.txt for license details.
+ */
+require __DIR__ . '/../../../../../../dev/tests/integration/testsuite/Magento/Store/_files/core_fixturestore.php';
+$objectManager = \Magento\TestFramework\Helper\Bootstrap::getObjectManager();
+
+/** @var Magento\Store\Model\Store $store */
+$store = $objectManager->create(\Magento\Store\Model\Store::class);
+$store->load('fixturestore', 'code');
+
+$product = $objectManager->create(\Magento\Catalog\Model\Product::class);
+$product->load($product->getIdBySku('SKU-1'))
+    ->setStoreId($store->getId())
+    ->setName('StoreTitle')
+    ->save();