Getting Database正确配置。请提供名称值错误

Question

我遇到此问题settings.DATABASES is improperly configured. Please supply the NAME value但它不适用于我。

上应用蟒蛇manage.py makemigrations，我收到错误

Traceback (most recent call last): 
File "manage.py", line 22, in <module> 
execute_from_command_line(sys.argv) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 367, in execute_from_command_line 
utility.execute() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/core/management/__init__.py", line 359, in execute 
self.fetch_command(subcommand).run_from_argv(self.argv) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 294, in run_from_argv 
self.execute(*args, **cmd_options) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/core/management/base.py", line 345, in execute 
output = self.handle(*args, **options) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/core/management/commands/makemigrations.py", line 106, in handle 
loader.check_consistent_history(connection) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/migrations/loader.py", line 276, in check_consistent_history 
applied = recorder.applied_migrations() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 65, in applied_migrations 
self.ensure_schema() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/migrations/recorder.py", line 52, in ensure_schema 
if self.Migration._meta.db_table in self.connection.introspection.table_names(self.connection.cursor()): 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 233, in cursor 
cursor = self.make_cursor(self._cursor()) 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 204, in _cursor 
self.ensure_connection() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 199, in ensure_connection 
self.connect() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/backends/base/base.py", line 170, in connect 
conn_params = self.get_connection_params() 
File "/home/rishav/EvalAI/venv/local/lib/python2.7/site-packages/django/db/backends/postgresql/base.py", line 158, in get_connection_params 
"settings.DATABASES is improperly configured. " 
django.core.exceptions.ImproperlyConfigured: settings.DATABASES is improperly configured. Please supply the NAME value. 

我的开发数据库

​​

并督促数据库

DATABASES = { 
    'default': { 
    'ENGINE': 'django.db.backends.postgresql_psycopg2', 
    'NAME': os.environ.get('RDS_DB_NAME', ""), 
    'USER': os.environ.get('RDS_USERNAME', ""), 
    'PASSWORD': os.environ.get('RDS_PASSWORD', ""), 
    'HOST': os.environ.get('RDS_HOSTNAME', ""), 
    'PORT': os.environ.get('RDS_PORT', ""), 
    } 
} 

如何解决这个问题？

Answer 1

这听起来像你的环境变量可能没有设置 - 我怀疑这是发生了什么事情。

登录到您的生产服务器并确保您的Django进程可以访问RDS_DB_NAME，RDS_USERNAME等作为环境变量。

还有：如果您有问题，您可能需要尝试硬编码虚假凭证，而不是使用环境变量。这至少会让你遇到下一个错误，它应该说无效的证书或类似的东西。这将确认环境变量是问题并需要修复。

UPDATE：如果您想尝试硬编码凭证，为您的生产数据库的配置做这样的事情：

DATABASES = { 
    'default': { 
    'ENGINE': 'django.db.backends.postgresql_psycopg2', 
    'NAME': 'test', 
    'USER': 'test', 
    'PASSWORD': 'test', 
    'HOST': 'localhost', 
    'PORT': 5432, 
    } 
} 

这将“硬编码”你的假凭证。然后，您可以部署此应用程序并查看您遇到的错误。