Module: Resort::Sortable

Defined in:
lib/resort.rb

Overview

TODO:

Refactor into a more OO solution, maybe implementing a LinkedList object.

The module encapsulating all the Resort functionality.

Defined Under Namespace

Modules: ClassMethods, InstanceMethods

Class Method Summary collapse

Class Method Details

.included(base) ⇒ Object

When included, extends the includer with ClassMethods, and includes InstanceMethods in it.

It also establishes the required relationships. It is necessary that the includer table has the following database columns:

t.references :next
t.boolean :first

Parameters:

  • base (ActiveRecord::Base) —

    the includer ‘ActiveRecord` model.



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# File 'lib/resort.rb', line 59

def included(base)
  base.extend ClassMethods
  base.send :include, InstanceMethods

  base.has_one :previous, :class_name => base.name, :foreign_key => 'next_id', :inverse_of => :next
  base.belongs_to :next, :class_name => base.name, :inverse_of => :previous

  base.after_create :include_in_list!
  base.after_destroy :delete_from_list
end