aloon/has_dictionary

ActiveRecord association with a class-based tableless enumerators

has_dictionary Gem

ActiveRecord association with a class-based tableless enumerators.

install

in Gemfile add:

gem 'has_dictionary'

and execute:

$ bundle install

how it works

You must create a class with the definitions of Enums

For example:

models/status.rb:

	class Status < Dictionary
	    self.add_item :NEW, 0
	    self.add_item :GENERATING, 1
	    self.add_item :RUN, 2
	    self.add_item :DELETING, 3
	end

In your ActiveRecord class

	class MyClass < ActiveRecord::Base
   		attr_accessible :name, :status_id

   		has_dictionary :dic_class=>Status, :field=>:status_id, :method=>'status'
	end

now you can:

	MyClass.find(1).status
	# returns #<Status:0x00 @id=0, @description="NEW">
	
	MyClass.find(1).status.description
	# returns "NEW"
	
	element = MyClass.find(1)
	element.status_id =  Status::GENERATING
	elements.save
	# this save element.status_id with the value 1

	Status.get
	#returns [#<Status:0x00 @id=0, @description="NEW">, #<Status:0x00 @id=1, @description="GENERATING">, #<Status:0x00 @id=2, @description="RUN">, #<Status:0x00 @id=3, @description="DELETING">]