Question

I’ve two models “Projects” and “Hardwares” that has a many to many relatioship between them. Those are codes for Hardwares and Projects models:

class Project < ActiveRecord::Base
 has_and_belongs_to_many :hardwares
end

class Hardware < ActiveRecord::Base
has_and_belongs_to_many :projectes
end

I’ve done tests using rails console, but I’m new to Rails and I’ve difficulties with controller and view. My issues are the following: I need a simple view for Projects that allowed me to add hardwares to it and I don’t know in witch way I can do it 🙁
Anyone can help me or suggest basic examples sites that I can use?
Thank you

Answer 1

Here’s an example using users and languages. It has the migrations, views, models, and controller code.

http://www.justinball.com/2008/07/03/checkbox-list-in-ruby-on-rails-using-habtm/

Also, this rails cast might be pretty helpful if you prefer video format:

http://railscasts.com/episodes/17-habtm-checkboxes

And here are some additional links you may find helpful:

• http://dabrorius.com/ruby-on-rails-tutorials/rails-many-to-many-association-tutorial/
• http://ramblings.gibberishcode.net/archives/rails-has-and-belongs-to-many-habtm-demystified/17