从Django模板访问外键

# models.py
from django.db import models

class Author(models.Model):
    name = models.CharField(max_length=100)

class Book(models.Model):
    title = models.CharField(max_length=100)
    author = models.ForeignKey(Author, on_delete=models.CASCADE)

# views.py
from django.shortcuts import render
from .models import Author

def author_detail(request, author_id):
    author = Author.objects.get(id=author_id)
    return render(request, 'author_detail.html', {'author': author})

<!-- author_detail.html -->
<h1>{{ author.name }}</h1>
<ul>
  {% for book in author.book_set.all %}
    <li>{{ book.title }}</li>
  {% endfor %}
</ul>