ActiveRecord Defaults

  http://www.paypal.com/cgi-bin/webscr?cmd=_send-money

  Email address: jonathan.viney@gmail.com

  class Person < ActiveRecord::Base
    defaults :country => 'New Zealand', :type => 'Unknown'

    default :last_name do |person|
      person.first_name
    end
  end

  class Person < ActiveRecord::Base
    def defaults
      self.first_name = "Jonathan"
    end
  end

  p = Person.new
  p.country # "New Zealand"

  p = Person.new(:country => nil)
  p.country # nil

  script/plugin install http://svn.viney.net.nz/things/rails/plugins/active_record_defaults

  jonathan dot viney @ gmail . com

Vitals

Comments

• Eric Anderson

  29 October 2006

  Doesn't ActiveRecord already do this based on the defaults set in the database?

• 

  Jonathan Viney

  30 October 2006

  No, you can only specify static default values with migrations. This plugin allows the default values to be determined when a new model object is created, allowing for features like user-configurable defaults.

  > Doesn't ActiveRecord already do this based on the defaults set in the database?

• 

  Jonathan Viney

  30 October 2006

  No, you can only specify static default values with migrations. This plugin allows the default values to be determined when a new model object is created, allowing for features like user-configurable defaults.

  > Doesn't ActiveRecord already do this based on the defaults set in the database?

• Paul

  15 December 2006

  Just what I was looking for! Cheers!

• 

  Nicholas Blumhardt

  11 June 2007

  Thanks! - Much nicer than the alternatives :)

• lambchop

  24 July 2007

  The svn repository appears down as of 2007-07-24.

• 

  alistair

  9 August 2007

  Nice and neat, thanks!

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