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Improve checks for nested creates and updates. #2196

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Merged
merged 2 commits into from
Dec 3, 2014
Merged

Improve checks for nested creates and updates. #2196

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f2dd05a
Improved nested update test in update().
tomchristie Dec 3, 2014
e1d98f7
Improve nested update and create testing.
tomchristie Dec 3, 2014
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8 changes: 4 additions & 4 deletions rest_framework/serializers.py
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Original file line number Diff line number Diff line change
Expand Up @@ -633,8 +633,8 @@ def create(self, validated_attrs):
# If we don't do this explicitly they'd likely get a confusing
# error at the point of calling `Model.objects.create()`.
assert not any(
isinstance(field, BaseSerializer) and not field.read_only
for field in self.fields.values()
isinstance(field, BaseSerializer) and (key in validated_attrs)
for key, field in self.fields.items()
), (
'The `.create()` method does not suport nested writable fields '
'by default. Write an explicit `.create()` method for serializer '
Expand Down Expand Up @@ -681,8 +681,8 @@ def create(self, validated_attrs):

def update(self, instance, validated_attrs):
assert not any(
isinstance(field, BaseSerializer) and not field.read_only
for field in self.fields.values()
isinstance(field, BaseSerializer) and (key in validated_attrs)
for key, field in self.fields.items()
), (
'The `.update()` method does not suport nested writable fields '
'by default. Write an explicit `.update()` method for serializer '
Expand Down