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No need to explictitly set None as default

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Yuekui 2020-06-10 11:22:27 -07:00 committed by GitHub
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docs/api-guide/filtering.md
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@ -75,7 +75,7 @@ We can override `.get_queryset()` to deal with URLs such as `http://example.com/
by filtering against a `username` query parameter in the URL.
"""
queryset = Purchase.objects.all()
username = self.request.query_params.get('username', None)
username = self.request.query_params.get('username')
if username is not None:
queryset = queryset.filter(purchaser__username=username)
return queryset
@ -365,4 +365,4 @@ The [djangorestframework-word-filter][django-rest-framework-word-search-filter]
[django-url-filter]: https://github.com/miki725/django-url-filter
[drf-url-filter]: https://github.com/manjitkumar/drf-url-filters
[HStoreField]: https://docs.djangoproject.com/en/3.0/ref/contrib/postgres/fields/#hstorefield
[JSONField]: https://docs.djangoproject.com/en/3.0/ref/contrib/postgres/fields/#jsonfield
[JSONField]: https://docs.djangoproject.com/en/3.0/ref/contrib/postgres/fields/#jsonfield