has_uuid
has_uuid provides basic UUID assignment methods for ActiveRecord objects.
It depends on the uuidtools gem.
Installation
script/plugin install git://github.com/norbert/has_uuid.git
Usage
class Post < ActiveRecord::Base
# automatically assign a UUID to the "uuid" column on create
has_uuid
end
class Comment < ActiveRecord::Base
# skip assignment on create
has_uuid :auto => false
end
class User < ActiveRecord::Base
# store the UUID in the "token" column, generate version 1 UUIDs
has_uuid :column => :token, :generator => :timestamp
end
# assign a UUID if a valid one is not already present
@post.assign_uuid
# assign a UUID, replacing whatever is already there
@post.assign_uuid(:force => true)
# assign a UUID and save, replacing whatever is there
@post.assign_uuid!
# check if the current UUID is valid
@post.uuid_valid?
Credits
- Norbert Crombach
- Todd Eichel
- Joerg Batterman