wrong class_name selected by ActiveRecord

Question

Hay fellow developer,

When I invoke @chapter.articles, rails yields the following error:

uninitialized constant Sommaire::Chapter::Article

Event if I specify *:class_name => "Sommaire::Article"*, it yields:

uninitialized constant Sommaire::Chapter::Sommaire::Article

Since I'm relatively new to rails (3.0.0), this has lost me !

Thanks in advance for your help. JD

Below the code from the classes
in sommaire.rb

class Sommaire < ActiveRecord::Base
  has_many :chapters
end

in sommaire/chapter.rb

class Sommaire::Chapter < ActiveRecord::Base
  include ItemBase

  def self.table_name
    'sommaire_chapters'
  end

  belongs_to :sommaire
  has_many :articles, :class_name => "Sommaire::Article"
  validates_presence_of :title, :description

end

in sommaire/article.rb

class Sommaire::Article < ActiveRecord::Base

  include ItemBase

  def self.table_name
    'sommaire_articles'
  end

  belongs_to :chapter

end

Answer 1

It would be worth trying class_name => '::Sommaire::Article' (note preceding ::) to indicate that the Sommaire path is from the root namespace.

It is possible though that there is some conflict between having a Sommaire namespace and a Sommaire model in which case you may want to rename one or the other.