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Raise ValidationError on non-partial update if a field without a default value is not specified.

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This commit is contained in:
Frank Pape 2014-03-03 10:10:49 -05:00
parent b150e5ddf6
commit 93573305ce
2 changed files with 28 additions and 6 deletions
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3
rest_framework/fields.py
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@ -354,7 +354,8 @@ class WritableField(Field):
else:
native = self.default
else:
if self.required:
incomplete_update = self.root.object is not None and not self.partial
if self.required or incomplete_update:
raise ValidationError(self.error_messages['required'])
return

31
rest_framework/tests/test_serializer.py
View File

@ -921,15 +921,36 @@ class DefaultValueTests(TestCase):
serializer = self.serializer_class(instance=instance, data=data)
self.assertFalse(serializer.is_valid())
# The field with a default value should be reset to default when omitted, and those
# without a default value should be set to None or a blank value when omitted.
data = {'required_field': 'required_field_updated'}
# Omitting an optional field with no default value is not valid
data = {
'text': 'text_updated',
'required_field': 'required_field_updated',
'extra': 'extra_updated',
}
serializer = self.serializer_class(instance=instance, data=data)
self.assertFalse(serializer.is_valid())
data = {
'text': 'text_updated',
'required_field': 'required_field_updated',
'extra_not_nullable': 'extra_not_nullable_updated',
}
serializer = self.serializer_class(instance=instance, data=data)
self.assertFalse(serializer.is_valid())
# A field with a default value should be reset to default when omitted
data = {
'required_field': 'required_field_updated',
'extra': 'extra_updated',
'extra_not_nullable': 'extra_not_nullable_updated',
}
serializer = self.serializer_class(instance=instance, data=data)
self.assertTrue(serializer.is_valid())
instance = serializer.save()
self.assertEqual(instance.text, 'foobar')
self.assertEqual(instance.extra, None)
self.assertEqual(instance.extra_not_nullable, '')
self.assertEqual(instance.required_field, 'required_field_updated')
self.assertEqual(instance.extra, 'extra_updated')
self.assertEqual(instance.extra_not_nullable, 'extra_not_nullable_updated')
class CallableDefaultValueTests(TestCase):