基于 django 类的删除视图和验证答案

【问题标题】：django class based delete view and validation基于 django 类的删除视图和验证
【发布时间】：2015-08-25 03:48:10
【问题描述】：

我的看法：

class ModEmailDeleteView(DetailView):
    model = EmailModel
    template_name = "email_delete.html"
    success_url = reverse_lazy('moderator_profile', request.user.id)

这里我想检查特定字段的用户是否是请求用户，然后只有他可以删除。喜欢

if obj.user == request.user

那么只有他可以删除或抛出404

如果我在 url 中有多个主键怎么办？并希望使用这些主键进行不同的验证

【问题讨论】：

Django Class-Based Generic Views and Authentication的可能重复

标签： python django django-class-based-views

【解决方案1】：

你可以这样做：

class ModEmailDeleteView(DeleteView):
    model = EmailModel
    template_name = "email_delete.html"
    success_url = reverse_lazy('moderator_profile', request.user.id)

    def delete(self, request, *args, **kwargs):
       self.object = self.get_object()
       if self.object.user == request.user:
          self.object.delete()
          return HttpResponseRedirect(self.get_success_url())
       else:
          raise Http404 #or return HttpResponse('404_url')

【讨论】：

【解决方案2】：

django Deleview 有 mixin，你只需覆盖删除在你看来功能，

class DeletionMixin(object):
"""
A mixin providing the ability to delete objects
"""
success_url = None

def delete(self, request, *args, **kwargs):
    """
    Calls the delete() method on the fetched object and then
    redirects to the success URL.
    """
    if self.object.user = request.user:
      self.object.delete()        
    success_url = self.get_success_url()
    self.object.delete()
    return HttpResponseRedirect(success_url)

【讨论】：