使用flask-migrate和flask-script，flask-socketio和应用程序工厂

问题描述

我正在使用应用程序工厂方法创建一个flask应用程序，但是在将Flask-Migrate与socketio和flask-script一起使用时遇到问题.

I'm creating an flask application with the application factory approach, but have an issue when using Flask-Migrate with socketio and flask-script.

问题是我要将create_app函数传递给Manager，但是我也需要将app传递给我的socketio.run().现在，我似乎看不到解决方案.有什么办法可以将这两种解决方案结合起来?

The problem is that I'm passing my create_app function to the Manager but I need to pass the app to my socketio.run() as well. And right now I can't seem to see a solution. Is there any way I can combine these two solutions?

manage.py:

manage.py:

#app = create_app(False)  <--- Old approach
#manager = flask_script.Manager(app)

manager = flask_script.Manager(create_app)
manager.add_option("-t", "--testing", dest="testing", required=False)

manager.add_command("run", socketio.run(
    app,
    host='127.0.0.1',
    port=5000,
    use_reloader=False)
)

# DB Management
manager.add_command("db", flask_migrate.MigrateCommand)

当我将旧方法与socketio一起使用时，如果不进行烧瓶迁移，一切都将起作用.如果我使用新方法，并删除了socketio部分，则迁移工作正常.

When I used the old approach with socketio, but without flask-migrate everything worked. If I use the new approach, and remove the socketio part, the migrate works.

注意:我希望能够使用以下两个命令来调用我的应用程序.python manage.py runpython manage.py -t True db upgrade

Note: I would like to be able to call my app with both of the following commands.python manage.py runpython manage.py -t True db upgrade

尝试使用current_app我正在获取RuntimeError: working outside of application context

manager.add_command("run", socketio.run(
   flask.current_app,
   host='127.0.0.1',
   port=5000,
   use_reloader=False)
)

推荐答案

基于Miguel的评论，我找到了一种可行的方法.

Based on the comment by Miguel I found a way which works.

由于某些原因，以下代码不起作用

For some reason the following code does not work

manager.add_command("run", socketio.run(
   flask.current_app,
   host='127.0.0.1',
   port=5000,
   use_reloader=False)
)

但这确实有效.

@manager.command
def run():
   socketio.run(flask.current_app,
                host='127.0.0.1',
                port=5000,
                use_reloader=False)

这篇关于使用flask-migrate和flask-script，flask-socketio和应用程序工厂的文章就介绍到这了，希望我们推荐的答案对大家有所帮助，也希望大家多多支持！