Django rest_framework----序列化组件

生成hypermedialink

serializer.pclass BookModelSerializers(serializers.ModelSerializer):

class Meta:
        model = Book
        fields = "__all__"

    publish=serializers.HyperlinkedIdentityField(
            view_name="detailpublish", #urls.py detailpublish视图的别名
            lookup_field="publish_id", #book表字段名
            lookup_url_kwarg="pk",     #对到url里的(?P<pk>d+)
    )


视图使用时加 context={'request': request}

res=BookSerializers(ret,many=True,context={'request': request})

urls.py

  url(r'^publishes/(?P<pk>d+)/$', views.PublishDetailView.as_view(),name="detailpublish"), #  View:view(request)=====APIView:dispatch()

  url(r'^books/(d+)/$', views.BookDetailView.as_view(),name="detailbook"),
    #url(r'^books/(d+)/$', View:view),     # view(request)

 

post请求save()时重写create方法

因为自定制了字段

publish=serializers.CharField(source="publish.pk")

class BookModelSerializers(serializers.ModelSerializer):
    class Meta:
        model = Book
        fields = "__all__"

    publish=serializers.CharField(source="publish.pk")
   # authors=serializers.CharField(source="authors.all")
    # authors = serializers.SerializerMethodField()
    # def get_authors(self,obj):
    #     temp=[]
    #     for obj in obj.authors.all():
    #         temp.append(obj.name)
    #     return temp

    def create(self, validated_data):
        print("validated_data",validated_data)
        book=Book.objects.create(title=validated_data["title"],price=validated_data["price"],pub_date=validated_data["pub_date"],publish_id=validated_data["publish"]["pk"])
        book.authors.add(*validated_data["authors"])

        return book