在Django REST Framework上只在GET请求上进行序列化

Question

我只希望AnchorSerializer()在GET请求上序列化，以便它将序列化对象作为响应返回。在创建AnchorToUser对象时，POST请求应为整数。在

class AnchorToUserSerializer(serializers.ModelSerializer):
    # Add the username from the user object relation.
    user = serializers.ReadOnlyField(source='user.username')
    # Serialize the nested anchor.
    anchor = AnchorSerializer() # Should only be used with GET.
    class Meta:
        model = AnchorToUser
        fields = (
            'anchor',
            'user',
            'created_at'
        )

Answer 1

也许您可以为GET和POST使用不同的序列化程序。在

class AnchorToUserGetSerializer(serializers.ModelSerializer):
    user = serializers.ReadOnlyField(source='user.username')
    anchor = AnchorSerializer(read_only=True) # only used for serialization

    class Meta:
        model = AnchorToUser
        fields = ('anchor', 'user', 'created_at')


class AnchorToUserPostSerializer(serializers.ModelSerializer):
    user = serializers.ReadOnlyField(source='user.username')
    anchor = serializers.IntegerField(write_only=True) # accept integer values

    class Meta:
        model = AnchorToUser
        fields = ('anchor', 'user', 'created_at')

要决定使用哪个序列化程序，可以重写get_serializer_class()方法。在

在视图或视图集中，可以执行以下操作：

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