class Organization < ActiveRecord::Base has_many :member_details has_many :members, :through => :member_details has_many :authors, :primary_key => :name has_many :author_essay_categories, :through => :authors, :source => :essay_categories has_one :author, :primary_key => :name has_one :author_owned_essay_category, :through => :author, :source => :owned_essay_category has_many :posts, :through => :author, :source => :posts scope :clubs, -> { from('clubs') } end