Ruby on rails 3 连接到两个数据库Mongoid

我有两个数据库，我必须在我的应用程序中使用。我的mongoid.yml中有以下内容：

development:
  # Configure available database sessions. (required)
  sessions:
    # Defines the default session. (required)
    default:
      # Defines the name of the default database that Mongoid can connect to.
      # (required).
      database: db_development
      username: myusername
      password: mypassword
      # Provides the hosts the default session can connect to. Must be an array
      # of host:port pairs. (required)
      hosts:
        - myserverip:27017
      databases:
        secondary:
          database: db2_development
          username: myusername
          password: mypassword
          # Provides the hosts the default session can connect to. Must be an array
          # of host:port pairs. (required)
          hosts:
           - myserverip:27018          

在我的模型文件中：

class MyModel
   include Mongoid::Document
   store_in database: "secondary"
   field :name, type: String
   field :age, type: Integer
end

我的模型中有数据。当我尝试查询时，出现以下错误：

Moped::Errors::QueryFailure (The operation: #<Moped::Protocol::Query
  @length=96
  @request_id=5
  @response_to=0
  @op_code=2004
  @flags=[:slave_ok]
  @full_collection_name="secondary.mymodel"
  @skip=0
  @limit=0
  @selector={"name"=>"Tom"}
  @fields=nil>
  failed with error 10057: "unauthorized db:secondary ns:secondary.mymodel lock type:0 client:10.100.55.40"

Moped:：Errors:：QueryFailure（操作：#“Tom”}
@字段=零>
失败，错误为10057：“未经授权的数据库：次要ns:secondary.mymodel锁类型：0客户端：10.100.55.40”

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我尝试在线搜索，但无法获得任何解决方案。如有任何帮助，将不胜感激。提前感谢。

嗯，你能做到这一点吗？看起来你把yaml文件弄乱了

development:
  sessions:
    default:
      database: db_development
      username: my_username
      password: my_password
      hosts:
        - myserverip:27017
      options:
        consistency: :eventual
    writeable:
      database: db2_development
      username: myusername2
      password  mypassword2
      hosts:
        -  myserverip2:27018
      options:
        consistency: strong

在你的模型中写下这个

store\u在会话中：“可写”

仅供参考，我从未使用

密码

选项进行过测试，但我想它会起作用

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希望此帮助

为了临时访问数据库（例如在脚本中），您可以使用MongoDB Ruby驱动程序：--

有关快速概述：

连接到数据库：

client=Mongo:：client.new（['127.0.0.1:27017'，：database=>'my_db'）

db=client.database

通过mongoDB查询语法查询条目：

---

db['collection\u name'].find（'field\u name'=>'field\u value'）

谢谢你的回答，我添加了'localhost:27017'而不是'myserverip:27017'和'store\u in database:'db2\u name'，而不是'store in session:'writeable'，这对我来说很有用

class MyModel
   include Mongoid::Document
   store_in session: "writeable"
   field :name, type: String
   field :age, type: Integer
end