In a Django template, I am fetching the newest comment using:

{{ blog.comments.all|dictsort:"created_at"|last }}

where blog is a instance of the Blog model, comments is the related_name with a ForeignKey to the Comment model.

This is the equivalent of

blog.comments.all().order_by("created_at").last()

Question: How can I get the text field for the comment in the template?

In the view I can do this using:

blog.comments.all().order_by("created_at").last().text

If I try:

{{ blog.comments.all|dictsort:"created_at"|last.text }}

I get a:

Could not parse the remainder: '.text' TemplateSyntaxError

• with tag:

  {% with newest_comment=blog.comments.all|dictsort:"created_at"|last %}
      {{ newest_comment.text }}
  {% endwith %}
  
  

• cached_property decorator:

  models.py

  from django.utils.functional import cached_property
  
  class Blog(models.Model):
      @cached_property
      def newest_comment(self):
          return self.comments.order_by('created_at').last()
  
  

  template.html

  {{ blog.newest_comment.text }}
  
  

• context:

  context['newest_comment'] = blog.comments.order_by('created_at').last()
  return render(request, template, context)
  
  

• latest() method:

  models.py

  class Comment(models.Model):
      class Meta:
          get_latest_by = 'created_at'
  
  

  template.html

  {{ blog.comments.latest.text }}
  
  

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