关于python：具有基于类的视图的装饰器

decorator with class based view

嗨，我有一个基于类的视图，我想用一些函数来修饰它的分派方法，以便在args/kwargs的基础上执行一些有用的操作。基于类的视图的代码如下：

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from django.utils.decorators import method_decorator
class ProjectDetailView(FormMixin, DetailView):
template_name = 'account/inner-profile-page.html'
model = ProjectDetail
form_class = CommentForm
context_object_name = 'project'

@method_decorator(view_count)
def dispatch(self, *args, **kwargs):
return super(ProjectDetailView,self).dispatch(*args, **kwargs)

def get_object(self, queryset=None):
user = User.objects.get(user_slug=self.kwargs['user_slug'])
title_slug = self.kwargs['title_slug'].replace(' ','-')
return get_object_or_404(ProjectDetail, title_slug = title_slug, user=user)

我的简化装饰器如下所示：

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def view_count(func):
def actual_decorator(*args, **kwargs):
#do something useful here
func(*args, **kwargs)
return actual_decorator

号

结果是"projectdetailview没有返回httpresponse对象"。我在哪里出错，应该怎么做，我知道它很简单，但这是我第一个做任何有用的装饰的人！

你缺少一个return：

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def actual_decorator(*args, **kwargs):
#do something useful here
return func(*args, **kwargs)