has_many :through => has_many

rubyonrails-talk
1

Thanks for your help Colin, resolved the issued by changing my model associations....

class NameAlias < ActiveRecord::Base   has_many :sub_tasks   has_many :work_orders, :through => :sub_tasks

class SubTask < ActiveRecord::Base   belongs_to :name_alias   belongs_to :work_order

class WorkOrder < ActiveRecord::Base   has_many :sub_tasks   has_many :name_aliases, :through => :sub_tasks