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Increase performance on find_existing_attribute_option_group query #338

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When trying to create alot of options this is really slow

specialunderwear and others added 11 commits January 24, 2024 14:34
* Implemented faster attributes save

* renamed for clarity
…ct to avoid transferring (#331)

attributesvalues from parent to child.
Use the same database as the passed-in manager
* The image and file fields where nolonger working.

This PR restores that functionality.

* nergens voor
When an image product attribute is `null`, the product API would throw the
following exception:

```
ValueError: The 'value_image' attribute has no file associated with it.

  […]

  File "rest_framework/serializers.py", line 522, in to_representation
    ret[field.field_name] = field.to_representation(attribute)
  File "rest_framework/serializers.py", line 686, in to_representation
    return [
  File "rest_framework/serializers.py", line 687, in <listcomp>
    self.child.to_representation(item) for item in iterable
  File "rest_framework/serializers.py", line 522, in to_representation
    ret[field.field_name] = field.to_representation(attribute)
  File "oscarapi/serializers/fields.py", line 227, in to_representation
    return value.value.url
  File "django/db/models/fields/files.py", line 66, in url
    self._require_file()
  File "django/db/models/fields/files.py", line 41, in _require_file
    raise ValueError(
```

This patch fixes this by checking if the image field has a value before trying
to generate a URL.
Fixes handling of null product image attributes
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@viggo-devries this code is non working, see the test results

@viggo-devries viggo-devries changed the base branch from main to master May 15, 2024 13:12
@@ -57,9 +57,8 @@ def find_existing_attribute_option_group(name, options):
AttributeOptionGroup.objects.filter(name=name)
.annotate(options_count=models.Count("options"))
.filter(options_count=len(options))
.filter(options__option__in=options)
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why 2 times filter?

why not

.filter(options_count=len(options), options__option__in=options)

@viggo-devries viggo-devries force-pushed the improve_attributoptiongroup_query branch from 34e5a05 to f65e2e8 Compare May 15, 2024 13:50
@viggo-devries viggo-devries force-pushed the improve_attributoptiongroup_query branch from f65e2e8 to bc28a39 Compare June 4, 2024 14:59
Base automatically changed from master to main September 20, 2024 11:24
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3 participants