Question

我正在尝试在我的项目中实现Flask-Uploads。但是，我遇到了麻烦，因为我正在使用应用程序工厂功能，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，这不会起作用，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

无效。任何想法???

PS：我的应用程序中的其他所有内容都正常工作，除此之外。

Answer 1

我在这里发布后就知道了。它很简单，但无法解释它无处解释：

在控制器/视图文件中，路径为：

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app/__init__.py文件上：

from app.controllers.my_view 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！有任何问题让我知道......

Flask-Uploads：如何使用应用程序工厂

1 个答案: