Woei Shyang
2006-Feb-04 04:20 UTC
[Rails] Specifying multiple foreign keys to another table?
Hi, By convention, if I have a field that is a reference to another record in the `users` table, all I would need to do is to name the column `user_id` and RoR would know it is a reference. However currently I am working on a table that records `actions` that both impact on another user, with each action performed by another user. Thus I''d have 2 columns like `impacted_user_id` and `actioned_by_user_id`, how do I tell raises that these 2 columns are really references to the `users` table instead of the `impacted_user` and `actioned_by_user` tables respectively? Thanks. -------------- next part -------------- An HTML attachment was scrubbed... URL: http://wrath.rubyonrails.org/pipermail/rails/attachments/20060204/6c986cd1/attachment.html
joey__
2006-Feb-04 06:52 UTC
[Rails] Re: Specifying multiple foreign keys to another table?
You can use the foregin key, key: has_many :done_actions, :foreign_key => ''actioned_by_user_id'', :class_name => ''Action'' has_many :impacted_actions, :foreign_key => ''impacted_user_id'', :class_name => ''Action'' belongs_to :actioned_by, :foreign_key => ''actioned_by_user_id'', :class_name => ''User'' belongs_to :impacted, :foreign_key => ''impacted_user_id'', :class_name => ''User'' Joey -- Posted via http://www.ruby-forum.com/.