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raise error if self.fields is empty

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AlexejStukov 2016-07-22 08:17:49 +02:00 committed by GitHub
parent 6eda634746
commit 4625266db6
1 changed files with 2 additions and 0 deletions
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2
channels/binding/websockets.py
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@ -56,6 +56,8 @@ class WebsocketBinding(Binding):
""" """
if self.fields == ['__all__']: if self.fields == ['__all__']:
self.fields = None self.fields = None
elif not self.fields:
raise ValueError("You must set the fields attribute on Binding %r!" % self.__class__)
data = serializers.serialize('json', [instance], fields=self.fields) data = serializers.serialize('json', [instance], fields=self.fields)
return json.loads(data)[0]['fields'] return json.loads(data)[0]['fields']