Paul Olivers wrote in post #1046790: > Hi All, > I'd like to integrate a simple user-oriented messaging system into my > app. > I have a Message model, with :from_user_id, and :to_user_id (for the > user that sent and the user that recieved the message). > > Obivously, (User) has_many :messages will fetch the messages that a > certain user has created, but not the ones that they have been sent. > > Currently, I have this: > has_many :messages, :foreign_key=>:to_user_id > has_many :sent_messages, :class_name=>'Message', > :foreign_key=>:from_user_id > > So I have to get all the messages with 2 separate calls(and sets of > queries). This doesn't seem quite right to me, and was wondering if > there is a better way. > > Is it possible to retrieve all messages for a user (recieved AND sent) > in 1 relationship?
There's potentially a few different ways to accomplish this. I would probable just create a simple one-to-many associations and add a message_type column to the messages table. User ----- has_many :messages Message ----- belong_to :user Then just add a couple of scopes to the model: received & sent. my_user.messages.received my_user.messages.sent my_user.messages class Message < ActiveRecord::Base scope :received, where(:message_type => 'received') scope :sent, where(:message_type => 'sent') end http://api.rubyonrails.org/classes/ActiveRecord/Scoping/Named/ClassMethods.html#method-i-scope -- Posted via http://www.ruby-forum.com/. -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to rubyonrails-talk@googlegroups.com. To unsubscribe from this group, send email to rubyonrails-talk+unsubscr...@googlegroups.com. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
