Question

我找到another similar question并认为我正在关注here中引用的路线，但我仍然遇到此错误。

根据instructions我在ruby脚本中调用Mongoid.load!("path/to/your/mongoid.yml")，所以我不认为是这样。

也许，根据来自inflector的错误消息，这是我如何定义CarrierDomain的问题。我正在引用Sinatra脚本中的rails模型。它位于名为carrier_domain.rb的模型文件中，该类定义为CarrierDomain（class CarrierDomain）。实际上，这是整个类的定义（它只是一个小）：

class CarrierDomain
  include Mongoid::Document
  embedded_in :carrier
  field :country
  field :name
  field :prefix, default: ''
end

以下是我收到的错误消息：

/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:230:in `block in constantize': uninitialized constant CarrierDomain (NameError)
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:229:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/inflector/methods.rb:229:in `constantize'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active_support/core_ext/string/inflections.rb:54:in `constantize'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/metadata.rb:606:in `klass'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builder.rb:39:in `klass'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builders/embedded/many.rb:25:in `block in build'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builders/embedded/many.rb:23:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builders/embedded/many.rb:23:in `build'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:43:in `create_relation'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:26:in `__build__'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:156:in `block (3 levels) in getter'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/threaded/lifecycle.rb:125:in `_loading'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:156:in `block (2 levels) in getter'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/threaded/lifecycle.rb:84:in `_building'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:155:in `block in getter'
    from /opt/cmf/app/models/carrier.rb:120:in `to_email_addresses'
    from mta_connector.rb:151:in `block in <main>'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual/mongo.rb:645:in `yield_document'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual/mongo.rb:134:in `block (2 levels) in each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/query.rb:78:in `block in each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/cursor.rb:26:in `block in each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/cursor.rb:26:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/cursor.rb:26:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/query.rb:77:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/moped-1.2.7/lib/moped/query.rb:77:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual/mongo.rb:133:in `block in each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual/mongo.rb:604:in `selecting'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual/mongo.rb:132:in `each'
    from /Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/contextual.rb:18:in `each'
    from mta_connector.rb:139:in `<main>'

Answer 1

我必须在我的Sinatra脚本中明确要求'carrier_domain'。

我原以为它会知道获取文件，因为它在rails控制台中工作（也就是说，我不需要在rails控制台中使用它）。 HMM。

Anyhoo，将require 'carrier_domain'（即未初始化的常量）添加到我的Sinatra脚本中。

mongoid未初始化的常量CarrierDomain（NameError）

1 个答案: