def save(self):
self.deserialize()
if self.errors:
raise ModelValidationError(self.errors)
try:
self.instance.clean_fields()
except ValidationError as e:
raise ModelValidationError(e.message_dict)
self.instance.save()
# Serialize related fields
for key, val in self.data.items():
if key not in self.related_fields:
continue
self._deserialize_related(key, val)
# Serialize m2m fields
for key, val in self.data.items():
if key not in self.m2m_fields:
continue
self._deserialize_related(key, val, save_instance=True)
return self.instance
def deserialize(self):
# Set initial data
if not self._instance:
self._instance = self.opts.model()
for key, val in self.initial.items():
setattr(self.instance, key, val)
# Deserialize base fields
for key, val in self.data.items():
if key not in self.opts.update_fields or key not in self.base_fields:
continue
try:
self.validate_field(key, val, self.data)
self._deserialize_field(key, val)
except ModelValidationError as err:
self.errors.update(err.get_error_dict())
if self.errors:
raise ModelValidationError(errors=self.errors)
return self.instance
def validate_number(self, val):
if val == 8:
raise ModelValidationError({'number': ['number error']})
def validate_text(self, val):
if val == 'foo':
raise ModelValidationError({'text': ['text error']})