我正在使用以下设置(这不工作)在我的mongoid.yml,我已经正确添加了MONGOLAB_URI环境变量到我的heroku环境：
production:
sessions:
default:
another:
uri: <%= ENV['MONGOLAB_URI'] %>
我也尝试了以下不起作用：
production: uri: <%= ENV['MONGOLAB_URI'] %>
这也不行：
production:
sessions:
default:
uri: <%= ENV['MONGOLAB_URI'] %>
我在heroku推送上收到以下错误：
Running: rake assets:precompile
There is a configuration error with the current mongoid.yml.
Problem:
No database provided for session configuration: :default.
Summary:
Each session configuration must provide a database so Mongoid knows where the default database to persist to. What was provided was: {"another"=>{"uri"=>nil}}.
Resolution:
If configuring via a mongoid.yml,ensure that within your :default section a :database value for the session's default database is defined.
Example:
\_\_development:
\_\_\_\_sessions:
\_\_\_\_\_\_default:
\_\_\_\_\_\_\_\_database: my_app_db
\_\_\_\_\_\_\_\_hosts:
\_\_\_\_\_\_\_\_\_\_- localhost:27017
There is a configuration error with the current mongoid.yml.
Problem:
No database provided for session configuration: :default.
Summary:
Each session configuration must provide a database so Mongoid knows where the default database to persist to. What was provided was: {"another"=>{"uri"=>nil}}.
Resolution:
If configuring via a mongoid.yml,ensure that within your :default section a :database value for the session's default database is defined.
Example:
\_\_development:
\_\_\_\_sessions:
\_\_\_\_\_\_default:
\_\_\_\_\_\_\_\_database: my_app_db
\_\_\_\_\_\_\_\_hosts:
\_\_\_\_\_\_\_\_\_\_- localhost:27017
Asset precompilation completed (15.47s)
我在这里做错了什么？我遵循了mongoid.org的说明：
http://mongoid.org/en/mongoid/docs/installation.html
我正在使用mongoid 3.0.0.rc
解决方法
尝试这个
ENV['MONGOLAB_URI'] = ds053681.mongolab.com:97321
production:
sessions:
default:
hosts:
- <%= ENV['MONGOLAB_URI'] %>
database: testapp_production
username: testappuser
password: testpassword