Flask-Uploads：如何与应用程序工厂一起使用

Question

我正在尝试在我的项目中实施 Flask-Uploads。但是，我遇到了麻烦，因为我正在使用应用程序工厂函数，无法从应用程序中的其他文件访问 UploadSets！

文件：app/__init__.py

from flask_uploads import UploadSet, configure_uploads, IMAGES

def create_app(object_name):
    ...
    images = UploadSet('images', IMAGES)
    configure_uploads(app, images)

文件：app/controllers/editions.py

from flask_uploads import UploadNotAllowed

# this is one of my route files, registered in a blueprint
editions = Blueprint('editions', __name__)

...
    # inside one of the routes
    poster = request.files.get('poster')
    try:
        filename = images.save(poster)
    except UploadNotAllowed:
        flash('The upload was not allowed.', category='warning')
    else:
        # add to db...

当然这是行不通的，因为images没有定义。但是如何从应用程序导入它？

我试过了：

import app
app.images.save(...)

from flask import current_app
current_app.images.save(...)

from app import images

None 有效。有什么想法吗？？？

PS：除此之外，我的应用程序中的其他所有内容都运行良好。

Answer 1

我在这里发帖后就明白了。很简单，但是找不到解释：

在您的 controller/view 文件中，路径是：

from flask_upload import UploadSet, IMAGES

my_upload_set = UploadSet('my_upload_set', IMAGES)

# (...) routes where you can use:
    image = request.files.get('image') # or whatever your form field name is
    try:
        filename = my_upload_set.save(image)
    except UploadNotAllowed:
        flash('The upload was not allowed.', category='warning')
    else:
        #  add to db

在您的 app/__init__.py 文件中：

from app.controllers.my_view import my_upload_set
from flask_uploads import configure_uploads

def create_app(object):
    (...)
    configure_uploads(app, my_upload_set)

这应该很有魅力！任何问题让我知道...

Flask-Uploads：如何与应用程序工厂一起使用

Flask-Uploads : how to use with application factory

python

flask

flask-uploads