ruby script/plugin install git://github.com/ggonnella/attr_hidden.git

Example usage with STI
======================

Let's assume you have a table "entities" that was created by this code:

  create_table :entities do |t|
    t.string :type
    t.string :title
    t.string :first_name
    t.string :last_name
    t.binary :logo
  end

The idea is that Person and Organisation will be subclasses of Entity that use single table inheritance.

As in our example world people have no logo and organisations have no title, first name and last name, we want to hide this columns from their respective classes:

  class Entity < ActiveRecord::Base; end
  
  class Person
    attr_hidden :logo
  end

  class Organisation
    attr_hidden :title, :first_name, :last_name
  end

This is it. Person will have no logo anymore, Organisation will have no title, first_name or last_name. Entity will of course retain all attributes.

Now it's possible to hide further attributes in subclasses.
For example:

  class UntitledPerson
    attr_hidden :title
  end

UntitledPerson will have no logo (inherited from Person) and no title, while Person will still have a title.

There is currently no advanced documentation for this plugin.