Question

我正在尝试从add_contact.py视图创建一个芹菜任务。我调用的函数位于contact_api.py视图中。但是应用程序抛出运行时错误，表明该函数不在应用程序上下文中。但是，在tasks.py中，该任务是在应用程序上下文中创建的。我是一个学习者，为此我感到很挣扎。

这是我的代码：

tasks.py

from celery import Celery

def make_celery(app):
    celery = Celery(
        app.import_name,
        broker=app.config['CELERY_BROKER_URL']
        )
    celery.conf.update(app.config)
    class ContextTask(celery.Task):
        def __call__(self, *args, **kwargs):
            with app.app_context():
                return self.run(*args, **kwargs)

    celery.Task = ContextTask
    return celery

add_contact.py

import contact_api
@add_contact.route('/add_contact/<cid>', methods=['GET'])
    def add_contact(cid):
        name = session['name']
        email = session['email']
        contact_api.send_contact.delay(name, email)
        return render_template('confirmation.html')

contact_api.py

@celery.task
def send_contact(name, email):
    # code that calls an api
    # it has some calls to the db

错误

[2018-06-25 19:52:04,016: ERROR/MainProcess] Task views.contact_api.send_contact[4d39da1f-34a7-4bac-9b8c-08b68d5d3e61] raised unexpected: RuntimeError('Working outside of application context.\n\nThis typically means that you attempted to use functionality that needed\nto interface with the current application object in a way.  To solve\nthis set up an application context with app.app_context().  See the\ndocumentation for more information.',)

我明确地尝试将with app.app_context()设置为该方法，但是会引发相同的错误。我很困惑。请帮忙。

从其他视图调用时，Celery任务用完了应用上下文，

0 个答案: