尝试创建新客户端时，Mongoid无法找到名称的客户端配置：'default'

Question

我添加了生产数据库，如下所示：

production:
  sessions:
    default:
      uri: <%= ENV['MONGOHQ_URL'] %>
      options:
        consistency: :strong
        max_retries: 1
        retry_interval: 0

取决于以下docs。

我通过以下命令创建了MONGOHQ_URL：

heroku config:add MONGOHQ_URL=mongodb://user:pass@server.mongohq.com:port/db_name

但是当我按heroku run rails c打开控制台时。我得到了以下内容：

There is a configuration error with the current mongoid.yml.

message:
  No clients configuration provided.
summary:
  Mongoid's configuration requires that you provide details about each client that can be connected to, and requires in the clients config at least 1 default client to exist.
resolution:
  Double check your mongoid.yml to make sure that you have a top-level clients key with at least 1 default client configuration for it. You can regenerate a new mongoid.yml for assistance via `rails g mongoid:config`.

 Example:
   development:
     clients:
       default:
         database: mongoid_dev
         hosts:
           - localhost:27017

Loading production environment (Rails 4.2.4) 

如何在mongoid.yml文件中添加生产配置以使用heroku进行部署？

Answer 1

他们更新了Mongoid 5中mongoid.yml文件的格式。而不是sessions它必须是clients。还有一些其他更改，我知道user和password现在嵌套在选项之下，与之前不同。有关详细信息，请参阅Mongoid docs。

production:
  clients:
    default:
      ...