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Use None to delete nested object as opposed to _delete flag

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This commit is contained in:
Mark Aaron Shirley 2013-01-16 16:03:59 -08:00
parent 34e14b01e4
commit 221f7326c7
2 changed files with 15 additions and 14 deletions
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27
rest_framework/serializers.py
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@ -107,7 +107,6 @@ class BaseSerializer(WritableField):
self.parent = None
self.root = None
self.partial = partial
self.delete = False
self.context = context or {}
@ -119,6 +118,7 @@ class BaseSerializer(WritableField):
self._data = None
self._files = None
self._errors = None
self._delete = False
#####
# Methods to determine which fields to use when (de)serializing objects.
@ -378,7 +378,7 @@ class ModelSerializer(Serializer):
return
try:
native = data[field_name]
value = data[field_name]
except KeyError:
if self.required:
raise ValidationError(self.error_messages['required'])
@ -387,19 +387,20 @@ class ModelSerializer(Serializer):
if self.parent.object:
# Set the serializer object if it exists
pk_field_name = self.opts.model._meta.pk.name
pk_val = native.get(pk_field_name)
obj = getattr(self.parent.object, field_name)
if obj and (getattr(obj, pk_field_name) == pk_val):
self.object = obj
self.delete = native.get('_delete')
obj = self.from_native(native, files)
if not self._errors:
self.object = obj
into[self.source or field_name] = self
if value in (None, ''):
self._delete = True
into[(self.source or field_name)] = self
else:
# Propagate errors up to our parent
raise ValidationError(self._errors)
obj = self.from_native(value, files)
if not self._errors:
self.object = obj
into[self.source or field_name] = self
else:
# Propagate errors up to our parent
raise ValidationError(self._errors)
def get_default_fields(self):
"""
@ -575,7 +576,7 @@ class ModelSerializer(Serializer):
return instance
def _save(self, parent=None, fk_field=None):
if self.delete:
if self._delete:
self.object.delete()
return

2
rest_framework/tests/nesting.py
View File

@ -106,7 +106,7 @@ class NestedOneToOneTests(TestCase):
self.assertEquals(serializer.data, expected)
def test_one_to_one_delete(self):
data = {'id': 3, 'name': u'target-3', 'target_source': {'_delete': True, 'id': 3, 'name': u'target-source-3', 'source': {'id': 3, 'name': u'source-3'}}}
data = {'id': 3, 'name': u'target-3', 'target_source': None}
instance = OneToOneTarget.objects.get(pk=3)
serializer = OneToOneTargetSerializer(instance, data=data)
self.assertTrue(serializer.is_valid())