添加请求到django模型方法？

from django.db import models
from django.urls import reverse

class Post(models.Model):
    title = models.CharField(max_length=200)
    content = models.TextField()

    def get_absolute_url(self):
        return reverse('post-detail', args=[str(self.id)])

from django.shortcuts import render
from .models import Post

def post_list(request):
    posts = Post.objects.all()
    return render(request, 'post_list.html', {'posts': posts})

{% for post in posts %}
  <h2><a href="{{ post.get_absolute_url }}">{{ post.title }}</a></h2>
{% endfor %}