def data_inspect(self, data, extra=None):

        if isinstance(data, (QuerySet, Page, list)):

            convert_data = []

            if extra:

                for i, obj in enumerate(data):

                    convert_data.append(self.data_inspect(obj, extra.get(

                        **{self.through_fields[0]: obj, self.through_fields[1]: self.source_field})))

            else:

                for obj in data:

                    convert_data.append(self.data_inspect(obj))

            return convert_data

        elif isinstance(data, models.Model):

            obj_dict = {}

            concrete_model = data._meta.concrete_model

            for field in concrete_model._meta.local_fields:

                # 检查 field 是否存在 rel 这个属性，为'AutoField' object has no attribute 'rel'错误填坑

                if hasattr(field, 'rel'):

                    if field.rel is None:

                        if self.check_attr(field.name) and hasattr(data, field.name):

                            obj_dict[field.name] = self.data_inspect(getattr(data, field.name))

                    else:

                        if self.check_attr(field.name) and self.foreign:

                            obj_dict[field.name] = self.data_inspect(getattr(data, field.name))

                else:

                    if self.check_attr(field.name) and hasattr(data, field.name):

                        obj_dict[field.name] = self.data_inspect(getattr(data, field.name))

            for field in concrete_model._meta.many_to_many:

                if self.check_attr(field.name) and self.many:

                    obj_dict[field.name] = self.data_inspect(getattr(data, field.name))

            for k, v in data.__dict__.items():

                if not str(k).startswith('_') and k not in obj_dict.keys() and self.check_attr(k):

                    obj_dict[k] = self.data_inspect(v)

            if extra:

                for field in extra._meta.concrete_model._meta.local_fields:

                    if field.name not in obj_dict.keys() and field.name not in self.through_fields:

                        if field.rel is None:

                            if self.check_attr(field.name) and hasattr(extra, field.name):

                                obj_dict[field.name] = self.data_inspect(getattr(extra, field.name))

                        else:

                            if self.check_attr(field.name) and self.foreign:

                                obj_dict[field.name] = self.data_inspect(getattr(extra, field.name))

            return obj_dict

        elif isinstance(data, manager.Manager):

            through_list = data.through._meta.concrete_model._meta.local_fields

            through_data = data.through._default_manager

            self.through_fields = [data.target_field.name, data.source_field.name]

            self.source_field = data.instance

            if len(through_list) > 3 and self.through:

                return self.data_inspect(data.all(), through_data)

            else:

                return self.data_inspect(data.all())

        elif isinstance(data, (datetime.datetime, datetime.date, datetime.time)):

            return self.time_func(data)

        elif isinstance(data, (ImageFieldFile, FileField)):

            return data.url if data.url else data.path

        elif isinstance(data, Decimal):

            return float(data)

        elif isinstance(data, dict):

            obj_dict = {}

            if self._dict_check:

                for k, v in data.items():

                    obj_dict[k] = self.data_inspect(v)

            else:

                for k, v in data.items():

                    if self.check_attr(k):

                        obj_dict[k] = self.data_inspect(v)

            return obj_dict

        elif isinstance(data, (str, bool, float, int)):

            return data

        else:

            return None