Fix for flat tables

Author: alfredsgenkins

src/Model/Resolver/Products/DataPostProcessor/Attributes.php

@@ -274,6 +274,9 @@ public function process(
             // Create storage for future attributes
             $productAttributes[$productId] = [];
 
+            /**
+             * @var Attribute $attribute
+             */
             foreach ($product->getAttributes() as $attributeCode => $attribute) {
                 if (!$attribute->getIsVisibleOnFront()) {
                     continue;
@@ -282,7 +285,7 @@ public function process(
                 $productAttributes[$productId][$attributeCode] = [
                     'attribute_code' => $attribute->getAttributeCode(),
                     'attribute_type' => $attribute->getFrontendInput(),
-                    'attribute_label' => $attribute->getFrontendLabel(),
+                    'attribute_label' => $attribute->getStoreLabel(),
                     'attribute_id' => $attribute->getAttributeId(),
                     'attribute_options' => []
                 ];

src/Model/ResourceModel/Product/Collection.php

@@ -29,7 +29,12 @@ public function addAttributeToSelect($attribute, $joinType = false)
             if (!is_array($attribute)) {
                 $attribute = [$attribute];
             }
+
             foreach ($attribute as $attributeCode) {
+                if (is_object($attributeCode)) {
+                    $attributeCode = $attributeCode->getAttributeCode();
+                }
+
                 if ($attributeCode == '*') {
                     foreach ($this->getEntity()->getAllTableColumns() as $column) {
                         $this->getSelect()->columns('e.' . $column);

src/etc/module.xml

@@ -12,8 +12,6 @@
         <sequence>
             <module name="Magento_CatalogGraphQl"/>
             <module name="ScandiPWA_CatalogGraphQl"/>
-            <module name="Magento_InventoryApi"/>
-            <module name="Magento_CatalogInventory"/>
         </sequence>
     </module>
 </config>