Django框架的Model基类, 提供可将Model对象转为字典的方法。

BaseModel.py

class BaseModel(models.Model):
    create_time = models.DateTimeField(verbose_name=u'创建时间', auto_now_add=True)
    update_time = models.DateTimeField(verbose_name=u'更新时间', auto_now=True)


    objects = BaseManager()

    def get_type(self):
        return self.__class__.__name__

    def to_dict(self):
        d = {}
        for _attr in self._meta.fields:
            attr = _attr.name
            val = getattr(self, attr)
            if attr == 'password':
                continue
            if isinstance(val, datetime.datetime):
                # 转换时区（数据库存储UTC时间）
                val = val.replace(tzinfo=pytz.UTC).astimezone(pytz.timezone(settings.TIME_ZONE))
                d[attr] = val.strftime('%Y-%m-%d %H:%M')
            elif isinstance(val, datetime.date):
                d[attr] = val.strftime('%Y-%m-%d')
            elif isinstance(val, BaseModel):
                d[attr] = val.to_dict()
            else:
                d[attr] = getattr(self, attr)
        return d

    class Meta:
        abstract = True