Django -用户如何查看他的会员类型下的书籍？

from django.db import models
from django.contrib.auth.models import User

class MembershipType(models.Model):
    name = models.CharField(max_length=100)
    description = models.TextField()

class Book(models.Model):
    title = models.CharField(max_length=200)
    author = models.CharField(max_length=100)
    membership_type = models.ForeignKey(MembershipType, on_delete=models.CASCADE)

class UserProfile(models.Model):
    user = models.OneToOneField(User, on_delete=models.CASCADE)
    membership_type = models.ForeignKey(MembershipType, on_delete=models.CASCADE)

from django.shortcuts import render
from django.contrib.auth.decorators import login_required
from .models import UserProfile, Book

@login_required
def user_books(request):
    user_profile = UserProfile.objects.get(user=request.user)
    books = Book.objects.filter(membership_type=user_profile.membership_type)
    return render(request, 'user_books.html', {'books': books})

<!-- user_books.html -->
<h1>Your Books</h1>
<ul>
    {% for book in books %}
        <li>{{ book.title }} by {{ book.author }}</li>
    {% empty %}
        <li>No books available for your membership type.</li>
    {% endfor %}
</ul>