AccessibleRecord
================

This plugin allows for simple nested mass-assignment.
It can be applied to :belongs_to, :has_one, and :has_many associations.

The algorithm that is used to update a model's :has_many association requires that an Array be
passed in for that association.  If an empty Array (nil or omitted implies empty Array) is passed in, then
all records in the has_many will be removed.  If the passed Array length is greater than the current # of records,
then new ones are added.  If it is less than the current #, then records will be removed.


Example
=======

In a model that has an association which should have it's attributes updated through mass-assigned,
call has_accessible as follows:

class Foo < ActiveRecord::Base
  belongs_to :bar
  has_one :star
  
  has_accessible :bar, :star
end

class Bar < ActiveRecord::Base
  validates_presence_of :name
end

class Car < ActiveRecord::Base
  validates_presence_of :time
end

class Star < ActiveRecord::Base
  has_many :cars

  has_accessible :cars
end


Update this record with a mass-assignment hash as follows:

Foo.first.update_attributes({
  :bar => { :name => 'My Bar' },
  :star => {
    :cars => [ { :time => Time.now }, { :time => 1.day.ago } ]
  }
})


You can view the accessible associations as follows:

Foo.accessible_associations
>> [:bar, :star]


Copyright (c) 2008 Glenn Powell, released under the MIT license