Flask+SQLAlchemy:如何显示一对多数据库中的最新条目

from flask_sqlalchemy import SQLAlchemy

db = SQLAlchemy()

class Post(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    title = db.Column(db.String(100))
    comments = db.relationship('Comment', backref='post', lazy=True)

class Comment(db.Model):
    id = db.Column(db.Integer, primary_key=True)
    content = db.Column(db.Text)
    post_id = db.Column(db.Integer, db.ForeignKey('post.id'))

latest_post = Post.query.order_by(Post.id.desc()).first()

latest_title = latest_post.title
latest_comments = [comment.content for comment in latest_post.comments]

from flask import render_template

@app.route('/')
def index():
    latest_post = Post.query.order_by(Post.id.desc()).first()
    latest_title = latest_post.title
    latest_comments = [comment.content for comment in latest_post.comments]
    return render_template('index.html', title=latest_title, comments=latest_comments)