I'm relatively new to Rails development and I'm having a minor associations problem. I'd like to name an association something different than the model it's linked to.
I have the following 2 models:
class User < ActiveRecord::Base
has_many :events
end
class Event < ActiveRecord::Base
belongs_to :admin, :class_name => "User" # So we can call event.admin to retrieve the User who owns this Event
end
I build a User as follows:
event = event.create! :title => "New Event"
user = User.create! :username => "thinkswan"
user.events << event
user.save
When I hop into the console I receive the following:
irb> user = User.find(1)
irb> user.events
=> [#<Event id: 1, title: "New Event", user_id: 1, created_at: "2011-06-09 06:41:09", updated_at: "2011-06-09 06:41:10">]
irb> event = Event.find(1)
irb> event.user_id
=> 1
irb> event.admin
=> nil
Can anyone explain why the admin
association isn't returning the User it's pointing to? Thanks!
You need to specify both :class_name
and :foreign_key
, for example:
belongs_to :admin, :class_name => "User", :foreign_key => "user_id"