[Rails] Re: Modelling Foreign Keys

[Chris Hall]

models:

class User < ActiveRecord::Base
  has_many :posts
end

class Post < ActiveRecord::Base
  beongs_to :user #
end

controller

class PostController < ApplicationController
  def new
    @post = Post.new
    @users = User.find(:all)
  end
end

view (new.rhtml)

<%= start_form_tag :action => "create" %>
...
<%= select :post, :user_id, options_from_collection_for_select(@users, "id",
"name") %>
...
<%= end_form_tag %>


On 3/31/06, Arch Stanton <d6veteran at gmail.com> wrote:
>
> Steve Koppelman wrote:
> > In this case, why won't it?
> >
> > In your user model, you'd say
> >
> >   has_many :posts
> >
> > and in the post model you'd say
> >
> >   belongs_to :user
> >
> > and that's all you need for what you describe. What's not working?
> >
>
>
> Well in the view I get no visibility to the foreign keys.  Just now I
> found this  example:
>
> class Student < ActiveRecord::Base
>   set_table_name "students"
>   set_primary_key "id"
>
>   belongs_to :advisor, :class_name=>"Advisor", :foreign_key =>
> "advisor_id"
>   belongs_to :second_advisor, :class_name=>"Advisor", :foreign_key =>
> "sub_advisor"
>
>   has_and_belongs_to_many :courses, :class_name=>"Course"
>
> end
>
> I want my posts/edit to allow me to select a user.
>
> --
> Posted via http://www.ruby-forum.com/.
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