烧瓶 - 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现烧瓶。但是，我遇到麻烦，因为我正在使用应用程序出厂功能，并且无法访问应用程序中其他文件的上传时间！

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...

当然这是不起作用的，因为images未定义。但是如何从应用程序导入它？

我尝试了：

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

无效。有什么想法？？

ps：我应用中的其他所有内容都可以正常工作。

Answer 1

我在这里发布后立即弄清楚了。它很简单，但找不到任何解释：

在您的控制器/视图文件上，路线所在：

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文件上：

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)

这应该像魅力一样工作！任何问题让我知道...