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simplify the handling of the non-native, validation only fields

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Val Neekman 2014-03-25 00:06:58 -04:00
parent 0fd48e0365
commit f5d223f782
2 changed files with 7 additions and 21 deletions
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16
docs/api-guide/serializers.md
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@ -411,9 +411,7 @@ You can add extra non-native `validation only` fields to a `ModelSerializer` pro
**A)** The extra `validation only` fields are removed from the `attrs` parameter prior to invoking the `restore_object()` method on the `parent` serializer class.
**B)** The extra `validation only` fields are removed from the `fields` attribute prior to invoking the `to_native()` method on the `parent` serializer class during the `object attribute` validations.
**Note:** You should `not` remove the extra `validation only` fields from the `fields` attribute prior to invoking the `to_native()` method on the `parent` serializer class during the `form creation` process if you are using the built-in browsable API.
**B)** The extra `validation only` fields are removed from the `fields` attribute prior to invoking the `to_native()` method on the `parent` serializer class when `obj` is None.
# Example of overriding restore_object() and to_native() attributes
@ -443,21 +441,15 @@ You can add extra non-native `validation only` fields to a `ModelSerializer` pro
model = User
fields = ('username', 'email', 'password', 'password_confirmation', 'accept_our_terms_and_conditions',)
write_only_fields = ('password',)
validation_only_fields = ('password_confirmation', 'accept_our_terms_and_conditions',)
def restore_object(self, attrs, instance=None):
# Flow: south-bound -- object creation: model instance
for attr in self.Meta.validation_only_fields:
for attr in ('password_confirmation', 'accept_our_terms_and_conditions'):
attrs.pop(attr)
return super(CreateUserSerializer, self).restore_object(attrs, instance)
def to_native(self, obj):
try:
# Flow: north-bound -- form creation: browser API
return super(CreateUserSerializer, self).to_native(obj)
except AttributeError as e:
# Flow: south-bound -- object validation: model class
for field in self.Meta.validation_only_fields:
if obj is not None:
for field in ('password_confirmation', 'accept_our_terms_and_conditions'):
self.fields.pop(field)
return super(CreateUserSerializer, self).to_native(obj)

12
rest_framework/tests/test_validation_only_fields.py
View File

@ -40,21 +40,15 @@ class ValidationOnlyFieldsExampleSerializer(serializers.ModelSerializer):
model = ValidationOnlyFieldsExampleModel
fields = ('email', 'password', 'password_confirmation', 'accept_our_terms_and_conditions',)
write_only_fields = ('password',)
validation_only_fields = ('password_confirmation', 'accept_our_terms_and_conditions',)
def restore_object(self, attrs, instance=None):
# Flow: south-bound -- object creation: model instance
for attr in self.Meta.validation_only_fields:
for attr in ('password_confirmation', 'accept_our_terms_and_conditions'):
attrs.pop(attr)
return super(ValidationOnlyFieldsExampleSerializer, self).restore_object(attrs, instance)
def to_native(self, obj):
try:
# Flow: north-bound -- form creation: browser API
return super(ValidationOnlyFieldsExampleSerializer, self).to_native(obj)
except AttributeError as e:
# Flow: south-bound -- object validation: model class
for field in self.Meta.validation_only_fields:
if obj is not None:
for field in ('password_confirmation', 'accept_our_terms_and_conditions'):
self.fields.pop(field)
return super(ValidationOnlyFieldsExampleSerializer, self).to_native(obj)