Call to a member function getProductIds() on null

[leonhelmus]

Issue Brief

What is the purpose of this issue? Explain the background context.

Resolve the error:
Call to a member function getProductIds() on null

Which i sometimes see in the error logs.

Environment

• PHP Version: (8.1)
• Magento Version: 2.4.6-p6
• Tweakwise Version: 6.0.1
• Tweakwise Export Version: 7.0.1
• Magento Deploy Mode: production
• Third party modules:
  Trace does not have any third party modules visible.

Steps to reproduce

1. \Tweakwise\Magento2Tweakwise\Model\Catalog\Layer\NavigationContext:getResponse returns null which is possible when looking at the function return type.
2. \Tweakwise\Magento2Tweakwise\Model\Catalog\Product\Collection::getProductIds
   $response = $this->navigationContext->getResponse(); return $response->getProductIds();
3. this returns an empty array.

Actual result

1. $response is null and than it cannot call getProductIds() on null.
2. you get the following error:
3. Error: Caught Error (500): Call to a member function getProductIds() on null

Expected result

1. if $response is null than $response->getProductIds() will not be called.

Possible solution

diff --git a/vendor/tweakwise/magento2-tweakwise/Model/Catalog/Product/Collection.php b/vendor/tweakwise/magento2-tweakwise/Model/Catalog/Product/Collection.php
--- a/vendor/tweakwise/magento2-tweakwise/Model/Catalog/Product/Collection.php
+++ b/vendor/tweakwise/magento2-tweakwise/Model/Catalog/Product/Collection.php	(date 1719832609005)
@@ -148,6 +148,6 @@
     protected function getProductIds()
     {
         $response = $this->navigationContext->getResponse();
-        return $response->getProductIds();
+        return $response->getProductIds() ?? [];
     }
 }