old_contents: from django.conf import settings
  from django.db.models.loading import get_model
  from django.shortcuts import get_object_or_404
  from django.views import generic
  
  from stardate.models import Blog
  from stardate.utils import get_post_model
  
  Post = get_post_model()
  
  
  class PostViewMixin(object):
      model = Post
      date_field = 'publish'
  
      def get_queryset(self):
          blog = get_object_or_404(Blog, slug__iexact=self.kwargs['blog_slug'])
          return Post.objects.published().filter(blog=blog)
  
  
  class PostArchiveIndex(PostViewMixin, generic.ArchiveIndexView):
      context_object_name = 'post_list'
  
      def get_context_data(self, **kwargs):
          context = super(PostArchiveIndex, self).get_context_data(**kwargs)
          context['blog'] = Blog.objects.get(slug__iexact=self.kwargs['blog_slug'])
          return context
  
  
  class PostYearArchive(PostViewMixin, generic.YearArchiveView):
      make_object_list = True
  
  
  class PostMonthArchive(PostViewMixin, generic.MonthArchiveView):
      pass
  
  
  class PostDayArchive(PostViewMixin, generic.DayArchiveView):
      pass
  
  
  class PostDetail(PostViewMixin, generic.DateDetailView):
      context_object_name = 'post'
      slug_url_kwarg = 'post_slug'
  
  
  class PostEdit(PostViewMixin, generic.UpdateView):
      context_object_name = 'post'
      slug_url_kwarg = 'post_slug'
  
new_contents: from django.conf import settings
  from django.shortcuts import get_object_or_404
  from django.views import generic
  
  from stardate.models import Blog
  from stardate.utils import get_post_model
  
  Post = get_post_model()
  
  
  class PostViewMixin(object):
      model = Post
      date_field = 'publish'
  
      def get_queryset(self):
          blog = get_object_or_404(Blog, slug__iexact=self.kwargs['blog_slug'])
          return Post.objects.published().filter(blog=blog)
  
  
  class PostArchiveIndex(PostViewMixin, generic.ArchiveIndexView):
      context_object_name = 'post_list'
  
      def get_context_data(self, **kwargs):
          context = super(PostArchiveIndex, self).get_context_data(**kwargs)
          context['blog'] = Blog.objects.get(slug__iexact=self.kwargs['blog_slug'])
          return context
  
  
  class PostYearArchive(PostViewMixin, generic.YearArchiveView):
      make_object_list = True
  
  
  class PostMonthArchive(PostViewMixin, generic.MonthArchiveView):
      pass
  
  
  class PostDayArchive(PostViewMixin, generic.DayArchiveView):
      pass
  
  
  class PostDetail(PostViewMixin, generic.DateDetailView):
      context_object_name = 'post'
      slug_url_kwarg = 'post_slug'
  
  
  class PostEdit(PostViewMixin, generic.UpdateView):
      context_object_name = 'post'
      slug_url_kwarg = 'post_slug'
  
subject: remove unused import