django中修改models返回时间格式

# 正常返回
logo = SaasBusiness.objects.filter().latest("id")  
# 返回时间字段为:  "create": "2020-11-18T09:58:40.134867"


# 1-修改返回字段
logo = SaasBusiness.objects.extra(
		select={"ucreate": "DATE_FORMAT(ucreate, '%%Y-%%m-%%d %%H:%%i:%%s')"}).filter().latest("id")
# 返回格式: "create": "2020-11-18 09:58:40",


# 2-通过序列化器指定
class SaasBusinessSerialiser(ModelSerializer):
	...
	ucreate = serializers.DateTimeField(format='%Y-%m-%d %H:%M:%S')  # 设置日期格式化格式
	...