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Simplify Serializer.fields with @cached_property

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This commit is contained in:
Ran Benita 2019-05-09 09:06:16 +03:00
parent 5acdf51c7d
commit db81a1735e
1 changed files with 5 additions and 6 deletions
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9
rest_framework/serializers.py
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@ -348,7 +348,7 @@ class Serializer(BaseSerializer, metaclass=SerializerMetaclass):
'invalid': _('Invalid data. Expected a dictionary, but got {datatype}.')
}
@property
@cached_property
def fields(self):
"""
A dictionary of {field_name: field_instance}.
@ -356,11 +356,10 @@ class Serializer(BaseSerializer, metaclass=SerializerMetaclass):
# `fields` is evaluated lazily. We do this to ensure that we don't
# have issues importing modules that use ModelSerializers as fields,
# even if Django's app-loading stage has not yet run.
if not hasattr(self, '_fields'):
self._fields = BindingDict(self)
fields = BindingDict(self)
for key, value in self.get_fields().items():
self._fields[key] = value
return self._fields
fields[key] = value
return fields
@cached_property
def _writable_fields(self):