Django:嵌套对象I';我正在序列化到序列化程序中?
我希望嵌套我正在序列化的对象。我的意思是: 我当前的用户序列化程序:Django:嵌套对象I';我正在序列化到序列化程序中?,django,django-rest-framework,django-serializer,Django,Django Rest Framework,Django Serializer,我希望嵌套我正在序列化的对象。我的意思是: 我当前的用户序列化程序: class UserSerializer(serializers.ModelSerializer): posts = serializers.SerializerMethodField() class Meta: model = User fields = ('__all__') def get_posts(self, user): posts = Pos
class UserSerializer(serializers.ModelSerializer):
posts = serializers.SerializerMethodField()
class Meta:
model = User
fields = ('__all__')
def get_posts(self, user):
posts = Posts.objects.get_posts_for_user(user=user)
return PostsSerializer(posts, many=True, context=self.context)
class PostsSerializer(serializers.ModelSerializer):
class Meta:
model = Posts
fields = ('__all__')
这是我的PostsSerializer:
class UserSerializer(serializers.ModelSerializer):
posts = serializers.SerializerMethodField()
class Meta:
model = User
fields = ('__all__')
def get_posts(self, user):
posts = Posts.objects.get_posts_for_user(user=user)
return PostsSerializer(posts, many=True, context=self.context)
class PostsSerializer(serializers.ModelSerializer):
class Meta:
model = Posts
fields = ('__all__')
下面是它的序列化方式:
{ "name": "Bobby Busche",
"email": "Bobby@gmail.com",
"posts": [ {"from_user": "me", "message": "Hello World"},
{"from_user": "me", "message": "Bye bye"} ],
"username": "ilovemymomma"
}
但我希望将用户分组到键“user”中,如下所示:
{ "user": { "name": "Bobby Busche",
"email": "Bobby@gmail.com",
"username": "ilovemymomma" }
"posts": [ {"from_user": "me", "message": "Hello World"},
{"from_user": "me", "message": "Bye bye"} ]
}
我需要一些关于执行此操作的最佳方法的指导。正如Rajesh所指出的,您可以创建一个自定义序列化程序。请注意,此序列化程序是只读的
class UserPostsSerializer(serializers.BaseSerializer):
def to_representation(self, instance):
posts = Posts.objects.get_posts_for_user(user=instance)
return {
'user': UserSerializer(instance).data,
'posts': PostSerialzer(posts, many=True).data
}
然后,您需要从UserSerializer中删除posts字段,以便posts不会嵌套在该字段中。您可以像Rajesh指出的那样创建自定义序列化程序。请注意,此序列化程序是只读的
class UserPostsSerializer(serializers.BaseSerializer):
def to_representation(self, instance):
posts = Posts.objects.get_posts_for_user(user=instance)
return {
'user': UserSerializer(instance).data,
'posts': PostSerialzer(posts, many=True).data
}
然后,您需要从UserSerializer中删除posts字段,这样posts就不会嵌套在该字段中。自定义序列化程序就是一种方法!快速和干净。自定义序列化程序是一种方式!又快又干净。