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我一直在尝试让我的 django 测试为我正在构建的 API 工作。我对 Python 比较陌生，并且已经坚持了一段时间。

一些简单的事实：

  • 我正在使用 2 个数据库 - 我的用户使用 postgresql 数据库，其他所有数据库使用 mongo 数据库。
  • 我正在使用 TastyPie、Django-MongoDB-Engine、Djangotoolbox、Django-Non-rel、Pymongo 和 psycopg2
  • 我已成功连接到数据库。当我从 shell 中保存 auth_user 时，它会保存到 sql 数据库中，而我的应用程序中的模型会保存到 mongoDB

我必须将它与另一个 API 集成，因此仅限于我对数据库和库的选择。

我的大问题是测试 - 我无法让它工作。

当我尝试使用 ./manage.py 测试运行 Django 的测试时，我不断收到此错误：

pymongo.errors.OperationFailure: command SON([('authenticate', 1), ('user', u'test'), ('nonce', u'blahblah'), ('key', u'blahblah')]) failed: auth fails

经过广泛的搜索，我仍然不确定它是什么。我知道显然有些东西正在尝试使用我的 MongoDB 进行身份验证，然后它不允许它。我不介意使用这个数据库进行测试，因为它无论如何都是一个测试数据库。

请帮忙！我的配置和错误消息如下。

我将数据库设置设置为包括两个数据库，如下所示：

DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'main_db',
        'USER': os.environ['RDS_USERNAME'],
        'PASSWORD': os.environ['RDS_PASSWORD'],
        'HOST': os.environ['RDS_HOSTNAME'],
        'PORT': os.environ['RDS_PORT'],
    },
    'mongo': {
        'ENGINE': 'django_mongodb_engine',
        'NAME': 'mongo_db',
        'USER': os.environ['MONGO_USERNAME'],
        'PASSWORD': os.environ['MONGO_PASSWORD'],
        'HOST': os.environ['MONGO_HOSTNAME'],
        'PORT': os.environ['MONGO_PORT'],
    }
}

DATABASE_ROUTERS = ['myproject.database_router.AuthRouter']

如您所见，我创建了自己的自定义路由器：

sql_databases = ['admin', 'auth', 'contenttypes', 'tastypie'
                 'sessions', 'messages', 'staticfiles']


class AuthRouter(object):
    """
    A router to control all database operations on models in the
    auth application.
    """
    def db_for_read(self, model, **hints):
        """
        Attempts to read auth models go to auth_db.
        """
        if model._meta.app_label in sql_databases:
            return 'default'
        return 'mongo'

    def db_for_write(self, model, **hints):
        """
        Attempts to write auth models go to auth_db.
        """
        if model._meta.app_label in sql_databases:
            return 'default'
        return 'mongo'

    def allow_relation(self, obj1, obj2, **hints):
        """
        Allow relations only if model does includes auth app.
        """
        if obj1._meta.app_label in sql_databases or \
           obj2._meta.app_label in sql_databases:
                return True
        return False

    def allow_migrate(self, db, model):
        """
        Make sure the auth app only appears in the 'auth_db'
        database.
        """
        if db == 'default':
            return model._meta.app_label in sql_databases
        elif model._meta.app_label in sql_databases:
            return False
        return False

完整的跟踪在这里：

Traceback (most recent call last):
File "./manage.py", line 10, in <module>
  execute_from_command_line(sys.argv)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/__init__.py", line 399, in execute_from_command_line
  utility.execute()
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/__init__.py", line 392, in execute
  self.fetch_command(subcommand).run_from_argv(self.argv)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 50, in run_from_argv
  super(Command, self).run_from_argv(argv)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/base.py", line 242, in run_from_argv
  self.execute(*args, **options.__dict__)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 71, in execute
  super(Command, self).execute(*args, **options)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/base.py", line 285, in execute
  output = self.handle(*args, **options)
File "myproject/djenv/lib/python2.7/site-packages/django/core/management/commands/test.py", line 88, in handle
  failures = test_runner.run_tests(test_labels)
File "myproject/djenv/lib/python2.7/site-packages/django/test/runner.py", line 145, in run_tests
  old_config = self.setup_databases()
File "myproject/djenv/lib/python2.7/site-packages/django/test/runner.py", line 107, in setup_databases
  return setup_databases(self.verbosity, self.interactive, **kwargs)
File "myproject/djenv/lib/python2.7/site-packages/django/test/runner.py", line 279, in setup_databases
  verbosity, autoclobber=not interactive)
File "myproject/djenv/lib/python2.7/site-packages/django_mongodb_engine/creation.py", line 196, in create_test_db
  self.connection._reconnect()
File "myproject/djenv/lib/python2.7/site-packages/django_mongodb_engine/base.py", line 279, in _reconnect
  self._connect()
File "myproject/djenv/lib/python2.7/site-packages/django_mongodb_engine/base.py", line 268, in _connect
  if not self.database.authenticate(user, password):
File "myproject/djenv/lib/python2.7/site-packages/pymongo/database.py", line 891, in authenticate
  self.connection._cache_credentials(self.name, credentials)
File "myproject/djenv/lib/python2.7/site-packages/pymongo/mongo_client.py", line 459, in _cache_credentials
  auth.authenticate(credentials, sock_info, self.__simple_command)
File "myproject/djenv/lib/python2.7/site-packages/pymongo/auth.py", line 243, in authenticate
  auth_func(credentials[1:], sock_info, cmd_func)
File "myproject/djenv/lib/python2.7/site-packages/pymongo/auth.py", line 222, in _authenticate_mongo_cr
  cmd_func(sock_info, source, query)
File "myproject/djenv/lib/python2.7/site-packages/pymongo/mongo_client.py", line 690, in __simple_command
  helpers._check_command_response(response, None, msg)
File "myproject/djenv/lib/python2.7/site-packages/pymongo/helpers.py", line 178, in _check_command_response
  raise OperationFailure(msg % errmsg, code, response)
pymongo.errors.OperationFailure: command SON([('authenticate', 1), ('user', u'test'), ('nonce', u'blahblah'), ('key', u'blahblah')]) failed: auth fails

任何帮助表示赞赏！

4

1 回答 1

0

想提供有关我如何解决此问题的更新-我认为这是一个读/写问题（身份验证失败问题），但事实并非如此。

  1. 如果您看到此错误，则它是身份验证问题 - 您的用户名、密码、数据库名称或集合名称不正确。

    pymongo.errors.OperationFailure: command SON([('authenticate', 1), ('user', u'test'), ('nonce', 
u'blahblah'), ('key', u'blahblah')]) failed: auth fails

  2. Django 在设置测试数据库时将“test_”添加到数据库名称的开头。所以我的主数据库，称为 maindb，然后被创建为“test_maindb”。

    您可以在以下位置查看相关信息：测试数据库和 Django

  3. 确保您可以写入一个单独的数据库，该数据库以您的数据库名称命名，并在名称后附加“test_”。

    另外 - 另一种解决方案是在您的数据库设置中定义测试数据库设置。这可以通过将“TEST_”附加到任何数据库属性来完成。一个例子包括：

    DATABASES = {
    'default': {
        'ENGINE': 'django.db.backends.postgresql_psycopg2',
        'NAME': 'maindb',
        'USER': os.environ['RDS_USERNAME'],
        'PASSWORD': os.environ['RDS_PASSWORD'],
        'HOST': os.environ['RDS_HOSTNAME'],
        'PORT': os.environ['RDS_PORT'],
        'TEST_NAME': 'my_test_sql',
        'TEST_USER': 'test_sql_user',
        'TEST_PASSWORD': 'password'
    },
    'mongo': {
        'ENGINE': 'django_mongodb_engine',
        'NAME': 'mongodb',
        'USER': os.environ['MONGO_USERNAME'],
        'PASSWORD': os.environ['MONGO_PASSWORD'],
        'HOST': os.environ['MONGO_HOSTNAME'],
        'PORT': os.environ['MONGO_PORT'],
        'TEST_NAME': 'my_test_mongodb',
        'TEST_USER': 'test_mongo_user',
        'TEST_PASSWORD': 'password'
    }
}

希望能帮助到你！如果您看到任何其他内容，请提供反馈

于 2014-08-19T17:54:24.200 回答