serializers.py 文件源码

def validate(self, attrs):
        """
        http://www.django-rest-framework.org/topics/3.0-announcement/#differences-between-modelserializer-validation-and-modelform
        """
        request = self.context.get('request', None)
        # Re-use model validation logic
        instance = Message(author=request.user, **attrs)
        try:
            instance.clean()
            if 'html' in attrs:
                instance.validate_html()
        except DjangoValidationError as err:
            message = {}
            for field, errors in err.message_dict.items():
                if not isinstance(errors, list):
                    errors = [errors]
                message[field] = errors
            raise ValidationError(message)
        return attrs