sequel_cascading

my take on cascading deletes via a plugin for sequel

WHY?

DRY up my code.

No more explicit before_destroy to delete the children of one_to_many associations.

Installation

Run the following if you haven't already:

$ gem sources -a http://gems.github.com

Install the gem(s):

$ sudo gem install -r sbfaulkner-sequel_cascading

Example

require 'rubygems'
require 'sequel'

class Comment < Sequel::Model
  many_to_one :post
end

class Post < Sequel::Model
  one_to_many :comment, :order => :name

  # destroy any associated records too
  is :cascading, :destroy => :comments

  # or, if you want to null the foreign key instead, you could...
  # is :cascading, :nullify => :comments

  # or, if you want the destroy to fail, you would...
  # is :cascading, :restrict => :comments
end

UPDATES

1.0.4

• [foca] define callback methods instead of using deprecated api

1.0.3

• added support for :nullify and :restrict options

TODO

• add :null and :deny support?
• publish in sequel www/pages/plugins

Legal

Author: S. Brent Faulkner brentf@unwwwired.net
License: Copyright © 2009 unwwwired.net, released under the MIT license