我只是建立了一个新的迁移和模型关系,并在测试表之间的关系时在控制台中我得到以下错误：NameError：uninitialized constant.
有谁知道什么是错的？
谢谢
编辑：
这是错误
NameError: uninitialized constant Profile::ProfileNotification from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/dependencies.rb:105:in `const_missing' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2199:in `compute_type' from C:/Ruby/lib/ruby/gems/1.8/gems/activesupport-2.3.5/lib/active_support/core_ext/kernel/reporting.rb:11:in `silence_warnings' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/base.rb:2195:in `compute_type' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/reflection.rb:156:in `send' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/reflection.rb:156:in `klass' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/reflection.rb:187:in `quoted_table_name' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations/has_many_association.rb:97:in `construct_sql' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations/association_collection.rb:21:in `initialize' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations.rb:1300:in `new' from C:/Ruby/lib/ruby/gems/1.8/gems/activerecord-2.3.5/lib/active_record/associations.rb:1300:in `profile_notifications' from (irb):3
ProfileNotification迁移中的代码：
class CreateProfileNotifications < ActiveRecord::Migration
def self.up
create_table :profile_notifications do |t|
t.integer :profile_id,:null => false
t.integer :notification_id,:null => false
t.string :notification_text
t.boolean :checked,:default => false
t.boolean :update_reply,:default => false
t.boolean :opinion_reply,:default => false
t.boolean :message_reply,:default => false
t.boolean :pm,:default => false
t.boolean :accepted_friend,:default => false
t.boolean :accepted_supporter,:default => false
t.timestamps
end
end
def self.down
drop_table :profile_notifications
end
end