如何在Serializer Django Rest Framework中访问QueryString值

I am trying to access querystring values in serializer class.

我试图访问序列化程序类中的查询字符串值。

class OneZeroSerializer(rest_serializer.ModelSerializer):

    location = rest_serializer.SerializerMethodField('get_alternate_name')

    def get_alternate_name(self, obj):
        view = self.context['view']
        print view.kwargs['q']  #output is {}
        return 'foo'


    class Meta:
        model = OneZero

        fields = ('id', 'location')

Views

查看

class OneZeroViewSet(viewsets.ModelViewSet):

   serializer_class = OneZeroSerializer

   queryset = OneZero.objects.all()

Is this right way to access querystring?

这是访问查询字符串的正确方法吗？

3 个解决方案

#1

When using ViewSets, you can access the request in the serializer context (like you access the view). You can access the query params from this

使用ViewSets时，您可以在序列化程序上下文中访问请求（就像访问视图一样）。您可以从中访问查询参数

def get_alternate_name(self, obj):
    request = self.context['request']
    print request.QUERY_PARAMS['q']
    return 'foo'

The attribute view.kwargs contains the named arguments parsed from your url-config, so from the path-part.

属性view.kwargs包含从url-config解析的命名参数，因此来自path-part。

#2

According to the docs you want to use self.request.QUERY_PARAMS

根据您要使用的文档self.request.QUERY_PARAMS

You can see it being used here

你可以在这里看到它被使用

UPDATE:

更新：

As of DRF 3.0:

从DRF 3.0开始：

The usage of request.QUERY_PARAMS is now pending deprecation in favor of the lowercased request.query_params

request.QUERY_PARAMS的使用现在正在等待弃用，以支持小写的request.query_params

#3

self.context['request'].query_params

self.context [ '请求']。query_params

#1