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Fix return of stale data on PATCH of to-one relationship #247

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Merged
merged 2 commits into from
Jun 1, 2016
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Fix return of stale data on PATCH of to-one relationship #247

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36cabfa
Fix return stale data on PATCH to-one relationship
tpilara May 26, 2016
a08b822
Merge branch 'develop' into patch-relationship-stale-data
tpilara May 31, 2016
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2 changes: 2 additions & 0 deletions example/tests/test_views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -101,6 +101,7 @@ def test_patch_to_one_relationship(self):
}
response = self.client.patch(url, data=json.dumps(request_data), content_type='application/vnd.api+json')
assert response.status_code == 200, response.content.decode()
assert response.data == request_data['data']
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@scottfisk scottfisk May 31, 2016 •
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@tpilara Does these 2 test lines cause the tests to fail without the fix?

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@scottfisk The line fails on test_patch_to_one_relationship without the fix. It passes before and after on test_patch_to_many_relationship, but I added it just to make sure that a future change doesn't cause it to stop working since only checking a status code of 200 doesn't make any guarantees about the integrity of the data in the response.


response = self.client.get(url)
assert response.data == request_data['data']
Expand All @@ -112,6 +113,7 @@ def test_patch_to_many_relationship(self):
}
response = self.client.patch(url, data=json.dumps(request_data), content_type='application/vnd.api+json')
assert response.status_code == 200, response.content.decode()
assert response.data == request_data['data']

response = self.client.get(url)
assert response.data == request_data['data']
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1 change: 1 addition & 0 deletions rest_framework_json_api/views.py
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Original file line number Diff line number Diff line change
Expand Up @@ -99,6 +99,7 @@ def patch(self, request, *args, **kwargs):
serializer.is_valid(raise_exception=True)
setattr(parent_obj, self.get_related_field_name(), serializer.validated_data)
parent_obj.save()
related_instance_or_manager = self.get_related_instance() # Refresh instance
result_serializer = self._instantiate_serializer(related_instance_or_manager)
return Response(result_serializer.data)

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