Ruby mongoid未初始化常量载体域（NameError）

我发现并认为我正在遵循的参考方向，但仍然遇到这个错误

根据我正在调用的

Mongoid.load！（“path/to/your/mongoid.yml”）

在我的ruby脚本中，所以我认为不是这样

也许，根据

拐点

发出的错误消息，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，该类被定义为CarrierDomain（

class CarrierDomain

）。事实上，下面是整个类的定义（只是一个小定义）：

下面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>'

/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active\u-support/endoctor/methods.rb:230:“块在常量中”：未初始化的常量载体域（NameError）
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active\u-support/inchector/methods.rb:229:in'each'
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active\u-support/inchector/methods.rb:229:in“constantize”
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/activesupport-3.2.8/lib/active\u support/core\u ext/string/influctions.rb:54:in'constantize'
来自/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'
来自/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builders/embedded/many.rb:25:“构建中的块”
来自/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/builders/embedded/many.rb:23:in'each'
来自/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_relations'
来自/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:26:in `\uuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuuu
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/relations/accessors.rb:156:in'block（3层）in getter'
来自/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/threaded/lifecycle.rb:125:in`\u 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层）in getter'
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/threaded/lifecycle.rb:84:in`` U 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“收件人电子邮件地址”
从mta_连接器.rb:151:in'block in'
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/context/mongo.rb:645:in'yield_document'
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/context/mongo.rb:134:在“块（两个级别）中
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/context/mongo.rb:133:“每个块中的块”
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/context/mongo.rb:604:在“选择”中
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/context/mongo.rb:132:in'each'
from/Users/arigold/.rvm/gems/ruby-1.9.3-p194/gems/mongoid-3.0.10/lib/mongoid/context.rb:18:in'each'
从mta_连接器.rb:139:in`'

我必须在我的Sinatra脚本中明确要求“carrier\u domain”

我原以为它会知道如何获取该文件，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）。嗯

总之，在我的Sinatra脚本中添加

需要“carrier\u domain”

（即未初始化的常量）

/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>'