将日期时间序列化为整数时间戳 [英] serialize a datetime as an integer timestamp

问题描述

我希望django rest在序列化时不要将我的DateTime模型字段转换为字符串日期表示形式.

I would like for django rest to not convert my DateTime model field into a string date represtation when serializing it.

response_date = serializers.DateTimeField(source="updated_at")

我希望这样出现

1411880508

1411880508

不是

"2014-09-28T05:01:48.123"

"2014-09-28T05:01:48.123"

推荐答案

您将要编写一个

You'll want to write a custom serializer field, like so:

class TimestampField(serializers.Field):
    def to_native(self, value):
        epoch = datetime.datetime(1970,1,1)
        return int((value - epoch).total_seconds())

要支持您想从 WritableField 继承的写入操作，还需要实现 from_native().

To support write operations you'd want to inherit from WritableField and also implement from_native().

编辑DRF 3.x&Python 3.8:

class TimestampField(serializers.Field):
    def to_representation(self, value):
        return value.timestamp()

如果您想要JavaScript样式的时间戳记:

If you want a JavaScript style timestamp:

class JsTimestampField(serializers.Field):
    def to_representation(self, value):
        return round(value.timestamp()*1000)

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