title: Django add comment model for comment
body: <p>I have a model News and model Comment for it.
  And it works norm.</p>
  
  <pre><code>class News(models.Model):
      title = models.CharField(max_length=100)
      text = models.TextField()
      date = models.DateTimeField(auto_now_add=True)
  
  class Comment(models.Model):
      text = models.TextField()
      for_news = models.ForeignKey(News)
  </code></pre>
  
  <p>In admin.py</p>
  
  <pre><code> from .models import News, Comment
   class NewsAdd(admin.StackedInline):
      model = Comment
      extra = 0
  
   class newseAdmin(admin.ModelAdmin):
      inlines = [NewsAdd]
  
   admin.site.register(News, newseAdmin)
  </code></pre>
  
  <p>In view</p>
  
  <pre><code>def showNews(request, news_id=1):
      news = Article.objects.get(id=article_id)
      comments = Comment.objects.filter(comments_news_id=article_id)
      return render(request, 'page.html', {'news': news, 'comments': comments})
  </code></pre>
  
  <p>How can I add an opportunity to reply to a comment? What would be a cascading comment for the comment.</p>