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[英]Usage of .to_representation() and .to_internal_value in django-rest-framework?
[英]django-rest-framework serializer to_representation
我有一个带有SerializerMethodField
的ModelSerializer
。 我想覆盖序列化程序的to_representation
方法以获得自定义输出,但我不知道如何访问SerializerMethodField
:
class MySerializer(serializers.ModelSerializer):
duration = serializers.SerializerMethodField()
def get_duration(self, obj):
return obj.time * 1000
def to_representation(self, instance):
return {
'name': instance.name,
'duration of cycle': # HOW TO ACCESS DURATION????
}
class Meta:
model = MyModel
def to_representation(self, instance):
duration = self.fields['duration']
duration_value = duration.to_representation(
duration.get_attribute(instance)
)
return {
'name': instance.name,
'duration of cycle': duration_value
}
参考:
所以我做了以下事情:
def to_representation(self, instance):
rep = super(MySerializer, self).to_representation(instance)
duration = rep.pop('duration', '')
return {
# the rest
'duration of cycle': duration,
}
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