class PostDeleteView(LoginRequiredMixin, DeleteView):
    model = Post
    template_name = 'blog/create.html'
    success_url = reverse_lazy('blog:index')
    pk_url_kwarg = 'post_id'

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        return context

    def dispatch(self, request, *args, **kwargs):
        instance = get_object_or_404(Post, pk=kwargs.get('post_id'))
        if instance.author != request.user:
            return redirect('blog:post_detail', self.kwargs.get('post_id'))
        return super().dispatch(request, *args, **kwargs)