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Split errors into errors and _errors_many

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Reduce indentation and linearize code to improve readability.
This commit is contained in:
Ian Foote 2014-03-27 15:38:21 +00:00
parent f64599c361
commit c0c8833185
1 changed files with 28 additions and 22 deletions
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50
rest_framework/serializers.py
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@ -507,12 +507,21 @@ class BaseSerializer(WritableField):
'Use the `many=True` flag when instantiating the serializer.',
DeprecationWarning, stacklevel=3)
if not many:
ret = self.from_native(data, files)
if many:
return self._errors_many(data)
if not self._errors:
self.object = ret
ret = self.from_native(data, files)
if not self._errors:
self.object = ret
return self._errors
def _errors_many(self, data):
"""Run deserialization of bulk data."""
if not hasattr(data, '__iter__') or isinstance(data, (dict, six.text_type)):
self._errors = {'non_field_errors': ['Expected a list of items.']}
return self._errors
ret = RelationsList()
@ -528,27 +537,24 @@ class BaseSerializer(WritableField):
identities = [self.get_identity(self.to_native(obj)) for obj in objects]
identity_to_objects = dict(zip(identities, objects))
if hasattr(data, '__iter__') and not isinstance(data, (dict, six.text_type)):
for item in data:
if update:
# Determine which object we're updating
identity = self.get_identity(item)
self.object = identity_to_objects.pop(identity, None)
if self.object is None and not self.allow_add_remove:
ret.append(None)
errors.append({'non_field_errors': [
'Cannot create a new item, only existing items may be updated.']})
continue
for item in data:
if update:
# Determine which object we're updating
identity = self.get_identity(item)
self.object = identity_to_objects.pop(identity, None)
if self.object is None and not self.allow_add_remove:
ret.append(None)
errors.append({'non_field_errors': [
'Cannot create a new item, only existing items may be updated.']})
continue
ret.append(self.from_native(item, None))
errors.append(self._errors)
ret.append(self.from_native(item, None))
errors.append(self._errors)
if update and self.allow_add_remove:
ret._deleted = identity_to_objects.values()
if update and self.allow_add_remove:
ret._deleted = identity_to_objects.values()
self._errors = any(errors) and errors or []
else:
self._errors = {'non_field_errors': ['Expected a list of items.']}
self._errors = any(errors) and errors or []
if not self._errors:
self.object = ret