generate scaffold or model for join table?

rubyonrails-talk
1

I'm using <http://wiki.rubyonrails.org/rails/pages/ThroughAssociations&gt; as a guide, but it doesn't say how to generate the model for the join table. Which of the following would be preferable:

script/generate scaffold category_feeds

or

script/generate model category_feeds

So long as it's kosher, I prefer the scaffold generator. For now the join table only has foreign keys for fields, but that may change down the road.

thufir@arrakis ~/Desktop/strawr/app/models $ thufir@arrakis ~/Desktop/strawr/app/models $ ll total 8 -rw-r--r-- 1 thufir users 66 Dec 12 02:40 category.rb -rw-r--r-- 1 thufir users 61 Dec 12 02:41 feed.rb thufir@arrakis ~/Desktop/strawr/app/models $ thufir@arrakis ~/Desktop/strawr/app/models $ cat category.rb class Category < ActiveRecord::Base         has_many : CategoryFeeds end thufir@arrakis ~/Desktop/strawr/app/models $ thufir@arrakis ~/Desktop/strawr/app/models $ cat feed.rb class Feed < ActiveRecord::Base         has_many :CategoryFeeds end thufir@arrakis ~/Desktop/strawr/app/models $ thufir@arrakis ~/Desktop/strawr/app/models $ ll /home/thufir/Desktop/ strawr/db/migrate/ total 12 -rw-r--r-- 1 thufir users 199 Dec 12 02:32 001_categories.rb -rw-r--r-- 1 thufir users 184 Dec 12 02:32 002_feeds.rb -rw-r--r-- 1 thufir users 251 Dec 12 02:32 003_category_feeds.rb thufir@arrakis ~/Desktop/strawr/app/models $ thufir@arrakis ~/Desktop/strawr/app/models $ cat /home/thufir/Desktop/ strawr/db/migrate/003_category_feeds.rb class CategoryFeeds < ActiveRecord::Migration   def self.up         create_table :category_feeds do |table|                 table.column :category_id, :integer                 table.column :feed_id, :integer         end   end

  def self.down         drop_table :category_feeds   end end thufir@arrakis ~/Desktop/strawr/app/models $

thanks,

Thufir

2

[...]

you just need a model, unless you are going to have more then just the link fields in the many table.

this explains with samples:

http://gemblon.com/railshowto/?p=19 -- Posted viahttp://www.ruby-forum.com/.

I might add fields to the category_feeds table, but for now it strictly manages the many-to-many relationship between the categories and feeds tables. If I run "script/generate model category_feeds" it will generate the corresponding model? This won't paint me into a corner if I want to add fields to this table down the road (so long as I manage the "rake db:migrate" commands)?

There's nothing to be gained by "script/generate scaffold category_feeds"?

thanks,

Thufir

3

Thanks. It's one small step at a time for me on this. I'll go with generating a scaffold as it does more and doesn't cause harm.

-Thufir