我在嘗試弄清楚如何為我的 Django 博客實現點贊系統時遇到了問題。我有一個帖子詳細信息視圖和一個PostRedirectView。我希望重定向視圖獲取我查看的帖子的絕對 URL,并切換喜歡/不喜歡,因為我的喜歡系統是鏈接在我的 models.py 中的帖子的 ManyToManyField。這是相關代碼:views.pyclass PostDetailView(DetailView): model = Post template_name = 'blog/post_detail.html' context_object_name = 'post' def get_context_data(self, **kwargs): data = super().get_context_data(**kwargs) comments_connected = Comment.objects.filter(post_connected=self.get_object()).order_by('-date_posted') data['comments'] = comments_connected data['form'] = NewCommentForm(instance=self.request.user) return data def post(self, request, *args, **kwargs): new_comment = Comment(content=request.POST.get('content'), author=self.request.user, post_connected=self.get_object()) new_comment.save() return self.get(self, request, *args, **kwargs)class PostLikeRedirect(RedirectView): def get_redirect_url(self, *args, **kwargs): obj = get_object_or_404(Post, pk=self.kwargs.get('id')) return obj.get_absolute_url()urls.py path('post/<int:pk>/', PostDetailView.as_view(), name='post-detail'), path('post/<int:pk>/like', PostLikeRedirect.as_view(), name='post-like'),models.pyclass Post(models.Model): content = models.TextField(max_length=1000) date_posted = models.DateTimeField(default=timezone.now) author = models.ForeignKey(User, on_delete=models.CASCADE, related_name="users_who_authored") like = models.ManyToManyField(settings.AUTH_USER_MODEL, blank=True, related_name="users_who_liked") def __str__(self): return f'{self.author} posts: {self.content[:8]}' @property def number_of_comments(self): return Comment.objects.filter(post_connected=self).count() def __str__(self): return f'{self.author} posted'當我轉到 post/id(eg 2)/like 時收到的錯誤是 404 page not found 和錯誤消息No Post matches the given query.我知道該錯誤意味著什么,我只是無法查明確切的時間以及我沒有正確傳遞查詢的位置
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蕪湖不蕪
TA貢獻1796條經驗 獲得超7個贊
id您正在嘗試從 URL獲取,但它被定義為pk。所以,改變你的觀點
class PostLikeRedirect(RedirectView):
def get_redirect_url(self, *args, **kwargs):
obj = get_object_or_404(Post, pk=self.kwargs["pk"])
^^^^^^^^^^^^^^^^^^^^^
return obj.get_absolute_url()
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