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Prevent re-running deserialization. Closes #1975.

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This commit is contained in:
Tom Christie 2014-11-07 14:08:20 +00:00
parent bb21216a7c
commit 041435f4ee
1 changed files with 8 additions and 3 deletions
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11
rest_framework/renderers.py
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@ -523,8 +523,10 @@ class BrowsableAPIRenderer(BaseRenderer):
data = request.data
except ParseError:
data = None
existing_serializer = serializer
else:
data = None
existing_serializer = None
with override_method(view, request, method) as request:
if not self.show_form_for_method(view, method, request, instance):
@ -539,9 +541,12 @@ class BrowsableAPIRenderer(BaseRenderer):
):
return
serializer = view.get_serializer(instance=instance, data=data)
if data is not None:
serializer.is_valid()
if existing_serializer is not None:
serializer = existing_serializer
else:
serializer = view.get_serializer(instance=instance, data=data)
if data is not None:
serializer.is_valid()
form_renderer = self.form_renderer_class()
return form_renderer.render(serializer.data, self.accepted_media_type, self.renderer_context)