old_contents: from django.contrib import messages
  from django.http import HttpResponseRedirect, HttpResponseBadRequest
  from django.views.generic.base import View
  from flaggit import utils
  from flaggit.forms import FlagForm
  
  class FlagView(View):
      def post(self, request):
          form = FlagForm(request.POST)
          
          if not form.is_valid():
              return HttpResponseBadRequest()
          
          user = None
          if request.user.is_authenticated():
              user = request.user
          
          utils.flag(form.cleaned_data['object'], user, request.META['REMOTE_ADDR'],
              form.cleaned_data['comment'])
          
          if 'next' in request.GET:
              messages.success(request, 'Flagged successfully.')
              return HttpResponseRedirect(request.GET.get('next'))
          return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
          
  
new_contents: from django.contrib import messages
  from django.http import HttpResponseRedirect, HttpResponseBadRequest
  from django.views.generic.base import View
  from flaggit import utils
  from flaggit.forms import FlagForm
  
  class FlagView(View):
      def post(self, request):
          form = FlagForm(request.POST)
          
          if not form.is_valid():
              return HttpResponseBadRequest()
          
          user = None
          if request.user.is_authenticated():
              user = request.user
          
          utils.flag(form.cleaned_data['object'], user, request.META['REMOTE_ADDR'],
              form.cleaned_data['comment'])
  
          messages.success(request, 'Flagged successfully.')
          if 'next' in request.GET:
              return HttpResponseRedirect(request.GET.get('next'))
          return HttpResponseRedirect(request.META.get('HTTP_REFERER', '/'))
          
  
subject: Update views.py