I''m working on a simple messaging service where a user can send a message to another user. It''s not email, each user can see their messages when they login to the site. Now I''m trying to figure out how to set up a has_many : through with two sets. One set is the sender having many messages and the other set is all the receiver''s messages. Also with two sets I can''t use the normal attribute names like message_id. I need to distinguish between sending and receiving ids. Any suggestions? -Anthony -- 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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
On 4/29/07, Anthony Walsh <rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:> > I''m working on a simple messaging service where a user can send a > message to another user. It''s not email, each user can see their > messages when they login to the site. Now I''m trying to figure out how > to set up a has_many : through with two sets. One set is the sender > having many messages and the other set is all the receiver''s messages. > Also with two sets I can''t use the normal attribute names like > message_id. I need to distinguish between sending and receiving ids. Any > suggestions? > > -AnthonyThis isn''t has_many :through, it''s just a simple has_many association. class User has_many :sent_messages, :class_name => ''Message'', :foreign_key => ''sender_id'' has_many :received_messages, :class_name => ''Message'', :foreign_key => ''receiver_id'' end class Message belongs_to :sender, :class_name => ''User'' belongs_to :receiver, :class_name => ''User'' end -- Rick Olson http://lighthouseapp.com http://weblog.techno-weenie.net http://mephistoblog.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-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org To unsubscribe from this group, send email to rubyonrails-talk-unsubscribe-/JYPxA39Uh5TLH3MbocFFw@public.gmane.org For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en -~----------~----~----~----~------~----~------~--~---
##Controller
def email
@user = User.find(params[:id])
user_ids = @user.received_messages.collect {|message|
message.sender_id}
@user_names = user_ids.collect {|uzer| User.find(uzer).fname}
end
##View
<% @user.received_messages.each_with_index do |rec_message, index| %>
<b>From:</b> <%= @user_names[index] %>
<b>Message:</b> <%= rec_message.message %>
<% end %>
Thanks Rick for the suggestion. With your suggestion I''m able to do a
basic messaging system. However, I have to look up all the usernames in
the controller and save them to be displayed in the view to be used the
''From'' portions of the message. I''d rather not have
to do it this way.
I''d be better to pull the name when needed. Is there a way so that I
could do the following.
From: <%= rec_message.from.username %>
-Anthony
Rick Olson wrote:> On 4/29/07, Anthony Walsh
<rails-mailing-list-ARtvInVfO7ksV2N9l4h3zg@public.gmane.org> wrote:
>> -Anthony
> This isn''t has_many :through, it''s just a simple has_many
association.
>
> class User
> has_many :sent_messages, :class_name => ''Message'',
:foreign_key =>
> ''sender_id''
> has_many :received_messages, :class_name =>
''Message'', :foreign_key
> => ''receiver_id''
> end
>
> class Message
> belongs_to :sender, :class_name => ''User''
> belongs_to :receiver, :class_name => ''User''
> end
>
> --
> Rick Olson
> http://lighthouseapp.com
> http://weblog.techno-weenie.net
> http://mephistoblog.com
--
Posted via http://www.ruby-forum.com/.
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