Django Rest框架自定义序列化一个字段 [英] Django Rest framework custom serialize a field

问题描述

我刚刚开始使用Django REST框架，并且需要在序列化时自定义一个DATETIME字段来unix epoch（integer）

I just started using Django REST framework and need to customize a DATETIME field to unix epoch (integer) when serializing it

我目前有

/models.py
class Snippet(models.Model):
    created = models.DateTimeField(auto_now_add=True)

/serializers.py
class SnippetSerializer(serializers.ModelSerializer):
    class Meta:
        model = Snippet
        fields = ('created')

当我通过API调用片段时，我得到STR格式的典型DATETIME。

When I call snippets through API, i get typical DATETIME in STR format .

如何更改SnippetSerializer以转换为EPOCH？此外，有人在发布信息时，会在EPOCH中回来，我需要将其转换为DATETIME。任何想法？

How can I change SnippetSerializer to convert to EPOCH. Also, when someone is posting information, it will come back to me in EPOCH, which I would need to convert to DATETIME . Any ideas?

推荐答案

请参阅下面的代码，这将有助于您解决问题。

Please see below code it will help you to solve your problem.

#models.py
class Snippet(models.Model):
    created = models.DateTimeField(auto_now_add=True)
    def convert_to_epoc(self):
        #paste your conversion code here
        return result

#serializers.py
class SnippetSerializer(serializers.ModelSerializer):
    created = serializers.Field(source='convert_to_epoc')
    class Meta:
        model = Snippet
        fields = ('created')

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