-1 publish = serializers.HyperlinkedIdentityField(view_name='ttt',lookup_field='publish_id',lookup_url_kwarg='pky')
-2 view_name:路由的別名,lookup_field:根據表的哪個字段,來拼路徑,lookup_url_kwarg:反向解析有名分組的名字
-3 寫路由:url(r'^publish/(?P<pky>\d+)', views.Publish.as_view(),name='ttt'),
-4 實例化序列化類的時候,需要把request對象傳過去
book_ser=BookSerializer(ret,many=True,context={'request': request})