【问题标题】:Flask with MongoDB using MongoKit to MongoLabsFlask with MongoDB 使用 MongoKit 到 MongoLabs
【发布时间】:2014-12-24 08:59:01
【问题描述】:
我是初学者,我在本地开发了一个简单的应用程序,它使用 mongodb 和 mongoKit,如下所示:
app = Flask(__name__)
app.config.from_object(__name__)
customerDB = MongoKit(app)
customerDB.register([CustomerModel])
然后在视图中我只使用 CustomerDB
我已将所有内容都放在 heroku 云上,但我的数据库连接不起作用。
我得到了我需要连接的链接:
heroku config | grep MONGOLAB_URI
但我不知道如何拉这个。我看了下面的帖子,但我更困惑
How can I use the mongolab add-on to Heroku from python?
任何帮助将不胜感激。
谢谢!
【问题讨论】:
标签:
heroku
flask
mlab
mongokit
【解决方案1】:
根据the documentation,Flask-MongoKit 支持一组配置设置。
MONGODB_DATABASE
MONGODB_HOST
MONGODB_PORT
MONGODB_USERNAME
MONGODB_PASSWORD
需要解析MONGOLAB_URI 环境设置以获取其中的每一个。我们可以将this answer 用于您链接到的问题作为起点。
import os
from urlparse import urlsplit
from flask import Flask
from flask_mongokit import MongoKit
app = Flask(__name__)
# Get the URL from the Heroku setting.
url = os.environ.get('MONGOLAB_URI', 'mongodb://localhost:27017/some_db_name')
# Parse it.
parsed - urlsplit(url)
# The database name comes from the path, minus the leading /.
app.config['MONGODB_DATABASE'] = parsed.path[1:]
if '@' in parsed.netloc:
# If there are authentication details, split the network locality.
auth, server = parsed.netloc.split('@')
# The username and password are in the first part, separated by a :.
app.config['MONGODB_USERNAME'], app.config['MONGODB_PASSWORD'] = auth.split(':')
else:
# Otherwise the whole thing is the host and port.
server = parsed.netloc
# Split whatever version of netloc we have left to get the host and port.
app.config['MONGODB_HOST'], app.config['MONGODB_PORT'] = server.split(':')
customerDB = MongoKit(app)