我正在使用 Flask 创建一个论坛项目,并使用 Flask-SQLAlchemy 管理所有用户、线程、帖子等。但是,我发现当我尝试执行 x(例如编辑帖子)时,如果我尝试执行其他任何操作(例如删除帖子),我会收到 InvalidRequestError。
对于编辑帖子,
def post_edit(id, t_id, p_id):
post = Post.query.filter_by(id=p_id).first()
if post.author.username == g.user.username:
form = PostForm(body=post.body)
if form.validate_on_submit():
post.body = form.body.data
db.session.commit()
return redirect(url_for('thread', id=id, t_id=t_id))
return render_template('post_edit.html', form=form, title='Edit')
else:
flash('Access denied.')
return redirect(url_for('thread', id=id, t_id=t_id))
并删除帖子,
@app.route('/forum=<id>/thr=<t_id>/p=<p_id>/delete', methods=['GET','POST'])
def post_delete(id, t_id, p_id):
post = Post.query.filter_by(id=p_id).first()
if post.author.username == g.user.username:
db.session.delete(post)
db.session.commit()
return redirect(url_for('thread', id=id, t_id=t_id))
else:
flash('Access denied.')
return redirect(url_for('thread', id=id, t_id=t_id))
并发布一个帖子
@app.route('/forum/id=<id>/thr=<t_id>', methods=['GET','POST'])
def thread(id, t_id):
forum = Forum.query.filter_by(id=id).first()
thread = Thread.query.filter_by(id=t_id).first()
posts = Post.query.filter_by(thread=thread).all()
form = PostForm()
if form.validate_on_submit():
post = Post(body=form.body.data,
timestamp=datetime.utcnow(),
thread=thread,
author=g.user)
db.session.add(post)
db.session.commit()
return redirect(url_for('thread', id=id, t_id=t_id))
return render_template('thread.html', forum=forum, thread=thread, posts=posts, form=form, title=thread.title)
不幸的是,解决这个问题的唯一可靠方法是重置实际运行应用程序的脚本 run.py
#!bin/python
from app import app
app.run(debug=True,host='0.0.0.0')