将Django连接到MongoLab数据库
我现在在用Django 1.4.3，想把我在MongoLab上创建的数据库连接到我的Django网站上。我试过很多教程来实现这个目标，但在我的Django设置文件settings.py中遇到了问题，数据库没有正确设置（因为无法连接）。我对Django和MongoDB都很陌生，所以任何帮助都非常感谢。
这是我跟随的其中一个教程：http://www.allbuttonspressed.com/blog/django/2010/05/MongoDB-backend-for-Django-nonrel-released
注意：我在使用Mac，并且通过终端来编程，如果这有影响的话。
这是我settings.py中的问题区域（大部分是Django自动生成的）
DATABASES = {
'default': {
#'ENGINE': 'django_mongodb_engine', ### This wasn't working ###
'ENGINE': '',
'NAME': '', # Or path to database file if using sq$
'USER': '', # Not used with sqlite3.
'PASSWORD': '', # Not used with sqlite3.
'HOST': '', # Set to empty string for localhost. N$
'PORT': '', # Set to empty string for default. Not$
}
}
这是错误信息：
Validating models...
Unhandled exception in thread started by <bound method Command.inner_run of <django.contrib.staticfiles.management.commands.runserver.Command object at 0x10f732210>>
Traceback (most recent call last):
File "/Library/Python/2.7/site-packages/django/core/management/commands/runserver.py", line 91, in inner_run
self.validate(display_num_errors=True)
File "/Library/Python/2.7/site-packages/django/core/management/base.py", line 266, in validate
num_errors = get_validation_errors(s, app)
File "/Library/Python/2.7/site-packages/django/core/management/validation.py", line 23, in get_validation_errors
from django.db import models, connection
File "/Library/Python/2.7/site-packages/django/db/__init__.py", line 40, in <module>
backend = load_backend(connection.settings_dict['ENGINE'])
File "/Library/Python/2.7/site-packages/django/db/__init__.py", line 34, in __getattr__
return getattr(connections[DEFAULT_DB_ALIAS], item)
File "/Library/Python/2.7/site-packages/django/db/utils.py", line 92, in __getitem__
backend = load_backend(db['ENGINE'])
File "/Library/Python/2.7/site-packages/django/db/utils.py", line 24, in load_backend
return import_module('.base', backend_name)
File "/Library/Python/2.7/site-packages/django/utils/importlib.py", line 35, in import_module
__import__(name)
File "build/bdist.macosx-10.8-intel/egg/django_mongodb_engine/__init__.py", line 13, in <module>
AttributeError: 'tuple' object has no attribute 'insert'
文件：.../django_mongodb_engine/init.py（这是直接从下载的文件，没有编辑过）
#!/usr/bin/python
# -*- coding: utf-8 -*-
__version__ = (0, 4, 0)
__author__ = "Flavio Percoco Premoli, Alberto Paro, " + \
"Jonas Haag and contributors"
__contact__ = "django-non-relational@googlegroups.com"
__homepage__ = "https://django-mongodb.org"
__docformat__ = "restructuredtext"
try:
from django.conf import settings
settings.INSTALLED_APPS.insert(0, 'django_mongodb_engine')
# It might be irritating that django-mongodb-engine registers itself as an app,
# and I think this is worth an explanation - so here you go:
# django-mongodb-engine provides a way to set MongoDB-specific options for a
# certain model via the 'MongoMeta' class/attribute (similar to the Django-style
# 'Meta' class). We want those options to be copied into the model's
# '_meta' object, right after the class has been defined.
# For this, we have to listen to the 'class_prepared' signal from
# 'django.db.models.signals'. Because the 'django_mongodb_engine' module gets
# imported as part of the initialization process of Django's ORM ('django.db'),
# we can *not* import anything from 'django.db' in this file (or any other
# submodule that is imported while the ORM initialization) because that would
# get us into recursive import hell which the Python interpreter doesn't allow.
# The only way to make sure certain code is executed after Django's ORM has been
# initialized is registering an app. After initializing itself, Django imports
# all apps defined in the project's 'settings.py' in the order implied by
# iterating over the INSTALLED_APPS list. As we have to make sure that
# django-mongodb-engine is loaded very first, we prepend it to the list.
except ImportError:
pass