我陷入了一个非常奇怪的问题。我最近从rails 4.1更新到4.2。在4.1中一切正常。但是现在，在4.2中，即使发现问题，模型关注内容似乎也会被忽略。
简单明了。我有一个属于Client的{{1}}模型，该关系在Address关注中定义：
应用程序/模型/ client.rb
Addressable应用程序/模型/ address.rb
class Client < ActiveRecord::Base
include Addressable
end
应用程序/模型/关切/ addressable.rb
class Address < ActiveRecord::Base
end
module Addressable
extend ActiveSupport::Concern
included do
belongs_to :address
end
环境没问题。我可以毫无问题地做development。但是在Client.new.address环境中，同一行给出了test错误。如果我将unknow method address移至belongs_to :address，那么它又会再次发挥作用。该模块正在被包含，因为没有关于此的错误，如果我将名称更改为Client，那么当然会出现错误。
验证方法等也是如此。
我一直在调试这个，但我找不到根。我已将Adressabledewdewded复制为development.rb并重新启动了服务器但仍然。我无法在新的Rails 4.2应用程序中重现这一点，因此它必须与我的应用程序或更新过程有关，但不知道在哪里。
任何人都有线索？
由于
更新
这是在测试环境中的控制台中执行test.rb的堆栈跟踪（在开发中它正常工作）：
Client.new.address更新
两个环境中NoMethodError: undefined method `address' for #<Client:0xbc89dac0>
from /home/marc/.gem/ruby/2.1.3/gems/activemodel-4.2.0/lib/active_model/attribute_methods.rb:433:in `method_missing'
from (irb):3
from /home/marc/.gem/ruby/2.1.3/gems/railties-4.2.0/lib/rails/commands/console.rb:110:in `start'
from /home/marc/.gem/ruby/2.1.3/gems/railties-4.2.0/lib/rails/commands/console.rb:9:in `start'
from /home/marc/.gem/ruby/2.1.3/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:68:in `console'
from /home/marc/.gem/ruby/2.1.3/gems/railties-4.2.0/lib/rails/commands/commands_tasks.rb:39:in `run_command!'
from /home/marc/.gem/ruby/2.1.3/gems/railties-4.2.0/lib/rails/commands.rb:17:in `<top (required)>'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `require'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `block in require'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:274:in `require'
from /home/marc/projects/clients_webs/a_project/bin/rails:8:in `<top (required)>'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `block in load'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:240:in `load_dependency'
from /home/marc/.gem/ruby/2.1.3/gems/activesupport-4.2.0/lib/active_support/dependencies.rb:268:in `load'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/commands/rails.rb:6:in `call'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/command_wrapper.rb:38:in `call'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:183:in `block in serve'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:156:in `fork'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:156:in `serve'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:131:in `block in run'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:125:in `loop'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application.rb:125:in `run'
from /home/marc/.gem/ruby/2.1.3/gems/spring-1.3.1/lib/spring/application/boot.rb:18:in `<top (required)>'
from /home/marc/.rubies/ruby-2.1.3/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
from /home/marc/.rubies/ruby-2.1.3/lib/ruby/2.1.0/rubygems/core_ext/kernel_require.rb:55:in `require'
的结果是（当然没有实例标识的唯一区别）：
Client.ancestors执行 => [Client (call 'Client.connection' to establish a connection), Trader, Addressable, Kaminari::ConfigurationMethods, Kaminari::ActiveRecordModelExtension, Client::GeneratedAssociationMethods, #<#<Class:0xba3b1c70>:0xba3b1d24>, ActiveRecord::Base, Kaminari::ActiveRecordExtension, GlobalID::Identification, ActiveRecord::Store, ActiveRecord::Serialization, ActiveModel::Serializers::Xml, ActiveModel::Serializers::JSON, ActiveModel::Serialization, ActiveRecord::Reflection, ActiveRecord::NoTouching, ActiveRecord::Transactions, ActiveRecord::Aggregations, ActiveRecord::NestedAttributes, ActiveRecord::AutosaveAssociation, ActiveModel::SecurePassword, ActiveRecord::Associations, ActiveRecord::Timestamp, ActiveModel::Validations::Callbacks, ActiveRecord::Callbacks, ActiveRecord::AttributeMethods::Serialization, ActiveRecord::AttributeMethods::Dirty, ActiveModel::Dirty, ActiveRecord::AttributeMethods::TimeZoneConversion, ActiveRecord::AttributeMethods::PrimaryKey, ActiveRecord::AttributeMethods::Query, ActiveRecord::AttributeMethods::BeforeTypeCast, ActiveRecord::AttributeMethods::Write, ActiveRecord::AttributeMethods::Read, ActiveRecord::Base::GeneratedAssociationMethods, #<#<Class:0xb8df1c14>:0xb8df1c50>, ActiveRecord::AttributeMethods, ActiveModel::AttributeMethods, ActiveRecord::Locking::Pessimistic, ActiveRecord::Locking::Optimistic, ActiveRecord::AttributeDecorators, ActiveRecord::Attributes, ActiveRecord::CounterCache, ActiveRecord::Validations, ActiveModel::Validations::HelperMethods, ActiveSupport::Callbacks, ActiveModel::Validations, ActiveRecord::Integration, ActiveModel::Conversion, ActiveRecord::AttributeAssignment, ActiveModel::ForbiddenAttributesProtection, ActiveRecord::Sanitization, ActiveRecord::Scoping::Named, ActiveRecord::Scoping::Default, ActiveRecord::Scoping, ActiveRecord::Inheritance, ActiveRecord::ModelSchema, ActiveRecord::ReadonlyAttributes, ActiveRecord::Persistence, ActiveRecord::Core, Object, PP::ObjectMixin, ActiveSupport::Dependencies::Loadable, JSON::Ext::Generator::GeneratorMethods::Object, Kernel, BasicObject]
会使Client.reflections.keys出现在开发中但不会出现在测试中。
答案 0 :(得分：8)
我明白了。问题是只存在于我的测试环境（json-schema）中的gem，它的依赖项之间有addressable gem，它定义了Addressable模块。因此，当Rails尝试自动加载Addressable时，它会找到由addressable定义的类而不是我关注的类。所以，当然，该模块正在被包含但不是我想的那个。
更新我的Gemfile时，json-schema已更新，现在取决于addresable，since November 2014。
很难抓住这个：）