向Django中的通用重定向视图添加成功消息

Question

我目前有一个项目，人们可以在其中创建帖子。我想显示一条消息，说一个帖子已经成功通过了投票，但SuccessMessageMixin不起作用。我尝试了其他方法，这些方法包含在我的代码中，我将在下面发布。SuccessMessageMixin适用于其他视图。我不知道为什么它不适用于此视图。

重定向代码不起作用的视图

class PostUpvoteRedirect(SuccessMessageMixin, RedirectView):
model = Post
success_message = "Post was upvoted successfully"
def get_redirect_url(self, *args, **kwargs):
obj = get_object_or_404(
Post,
publish__year=self.kwargs['year'],
publish__month=self.kwargs['month'],
publish__day=self.kwargs['day'],
slug=self.kwargs['post'],
)
url_ = obj.get_absolute_url()
user = self.request.user
if (user != None):
if user in obj.Upvote.all():
obj.Upvote.remove(user)
else:
obj.Upvote.add(user)
if user in obj.Downvote.all():
obj.Downvote.remove(user)
success_message = "Post was upvoted successfully"
return url_

代码在哪里工作

class PostCreateView(SuccessMessageMixin, LoginRequiredMixin, CreateView):
model = Post
fields = ['title','body']
success_message = "Post was created successfully"
def form_valid(self, form):
form.instance.author = self.request.user
return super().form_valid(form)

Answer 1

这里的关键是要实现

SuccessMessageMixin挂钩到RedirectView上不存在的form_valid，将其消息推送给用户。

这正是它在其他方法中工作的原因，因为这些类支持form_valid()功能。

关于如何在django RedirectView 中使用RedirectView-Success_url启用它，您可以在这里看到这个写得很好的答案

Answer 2

Redirect View dont have request access, for use django message class in CLASS VIEWS you need to use 'SuccessMessageMixin':
class AnyView(LoginRequiredMixin, SuccessMessageMixin, RedirectView):
""" LoginRequ... is for Login, SuccessMessage.. is for Message"""
logging.basicConfig(format='%(levelname)s:%(asctime)s %(message)s')
logging.debug('Sending message')
permanent = False
query_string = True
somequery = ModelSome.objects.all().filter(activate=True)
success_url = "/"
success_message = "%(something)s was succefull"

查看Django消息框架了解更多详细信息！