尝试创建新客户端时，Mongoid 找不到名称的客户端配置：'default'

Question

我添加了生产数据库如下：

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

依赖于以下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

但是当我通过heroku run rails c 打开控制台时。我得到了以下信息：

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

他们在 Mongoid 5 中更新了 mongoid.yml 文件的格式。而不是 sessions 它需要是 clients。还有一些其他的变化，我知道 user 和 password 现在嵌套在 options 下，不像以前。详情请见Mongoid docs。

production:
  clients:
    default:
      ...