Flask:更新代码参考:current_app._get_current_object()

问题描述 投票:0回答:2
Access to a protected member _get_current_object of a class

引用send_mail方法的第一行

app = current_app._get_current_object()

用来编码语句的更合适的方法是什么?

from threading import Thread from flask import current_app, render_template from flask_mail import Message from . import mail def send_async_email(app, msg): with app.app_context(): mail.send(msg) def send_email(to, subject, template, **kwargs): app = current_app._get_current_object() msg = Message(app.config['FLASKY_MAIL_SUBJECT_PREFIX'] + ' ' + subject, sender=app.config['FLASKY_MAIL_SENDER'], recipients=[to]) msg.body = render_template(template + '.txt', **kwargs) msg.html = render_template(template + '.html', **kwargs) thr = Thread(target=send_async_email, args=[app, msg]) thr.start() return thr

    

Current_App是您的Blask App实例

。它具有您的应用程序上下文。您无需从Current_App类访问受保护的成员。只需将其作为应用程序导入或以app的速度将其作为应用程序,然后执行您的操作即可。例如:
python flask
2个回答
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# Importing and aliasing current_app from flask import current_app as app # this is perfectly fine sender = app.config['FLASKY_MAIL_SENDER']

您不应从库或框架中访问受保护的成员。仅使用公共API暴露的成员,或冒着在以后的库更新中破坏代码的风险。

I在信号部分中找到了使用此函数的原因:
https://flask.palletsprojects.com/en/stable/signals/#:〜:text = text = taster%20proxies%20AS%20AS%20senders


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