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操作(例如删除帖子),则会收到InvalidRequestError.
@H_403_2@要编辑帖子,
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',t_id=t_id))
@H_403_2@并删除帖子,
@app.route('/forum=<id>/thr=<t_id>/p=<p_id>/delete',methods=['GET','POST'])
def post_delete(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',t_id=t_id))
else:
flash('Access denied.')
return redirect(url_for('thread',t_id=t_id))
@H_403_2@并张贴帖子
@app.route('/forum/id=<id>/thr=<t_id>','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',t_id=t_id))
return render_template('thread.html',forum=forum,posts=posts,title=thread.title)
@H_403_2@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')
解决方法
您使用的是WooshAlchemy,因为它可能是您问题的一部分.
Described here
@H_403_2@他描述了需要修改WooshAlchemy扩展的“修复”.
@H_403_2@通常虽然它可能意味着您调用Post模型对象然后使用“session.add”附加它,然后尝试“session.delete”或在同一对象上执行另一个“session.add”.
@H_403_2@你的请求路由也有点奇怪我从未见过“thr =< t_id>” Flask之前的符号类型.这对你有用吗？
@H_403_2@http://flask.pocoo.org/docs/quickstart/#variable-rules