fields.py 文件源码

def get_prep_lookup(self, lookup_type, value):
        if lookup_type in ('has_key', 'has_keys', 'has_any_keys'):
            return value
        return (Json(dict(value), dumps=json_serialiser)
                if isinstance(value, dict)
                else super().get_prep_lookup(lookup_type, value))

    # def validate(self, value, model_instance):
    #     super(JSONField, self).validate(value, model_instance)
    #     try:
    #         json.dumps(dict(value))
    #     except TypeError:
    #         raise exceptions.ValidationError(
    #             self.error_messages['invalid'],
    #             code='invalid',
    #             params={'value': value},
    #         )