Django AssertionError at /play/api/5/play/ 'request' 参数必须是 '

Question

我正在尝试在django网站上实现播放按钮的api版本。

这就是我走多远：

models.py

class Note(models.Model):
plays       = models.ManyToManyField(settings.AUTH_USER_MODEL,blank=True,related_name='track_plays')

def get_play_url(self):
return "/play/{}/play".format(self.pk)

def get_api_like_url(self):
return "/play/{}/play-api-toggle".format(self.pk)

---

views.py

class TrackPlayToggle(RedirectView):
def get_redirect_url(self,*args,**kwargs):
id = self.kwargs.get("id")
obj = get_object_or_404(Note,id=id)
url_ = obj.get_absolute_url()
user = self.request.user
if user.is_authenticated():
if user in obj.plays.all():
obj.plays.add(user)
else:
obj.plays.add(user)
return url_

from rest_framework.views import APIView
from rest_framework.response import Response
from rest_framework import authentication,permissions
from rest_framework.decorators import api_view
class TrackPlayAPIToggle(RedirectView):
authentication_classes = (authentication.SessionAuthentication,)
permission_classes = (permissions.IsAuthenticated,)
@api_view(['GET', 'POST', ])
def get(self,request,format=None):
obj = get_object_or_404(Note,id=id)
url_ = obj.get_absolute_url()
user = self.request.user
updated = False
played = False
if user.is_authenticated():
if user in obj.plays.all():
played = True
obj.plays.add(user)
else:
played = True
obj.plays.add(user)
played = False
updated = True
data = {
"updated":updated,
"played":played
}
return Response(data)

---

urls.py

url(r'^(?P<id>d+)/play/', TrackPlayToggle.as_view(), name='play-toggle'), 
url(r'^api/(?P<id>d+)/play/', TrackPlayAPIToggle.as_view(), name='play-api-toggle'),

---

我添加了 API 装饰器，因为没有它，我会收到一个类型错误：

get() got an unexpected keyword argument 'id'

当我尝试添加id=None时，我得到一个断言错误：

.accepted_renderer not set on Response

这是因为我使用了 id 而不是 slug 吗？

---

感谢您的任何建议

Answer 1

我不明白为什么你认为添加@api_view装饰器可以解决你的TypeError。该装饰器用于基于函数的视图;它在基于类的视图中没有用处，在基于类的视图中，您只需定义相关方法即可定义支持哪些方法。拆下装饰器。

解决原始问题的方法是将id参数添加到方法中;而用渲染器解决问题的方法是从正确的父类继承，这显然不应该是 RedirectView。

class TrackPlayAPIToggle(GenericAPIView):
authentication_classes = (authentication.SessionAuthentication,)
permission_classes = (permissions.IsAuthenticated,)
def get(self, request, id, format=None):
...