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Contents
module Acfs::Model::Attributes
# @api public
#
# UUID attribute type. Use it in your model as an attribute type:
#
# @example
# class User
# include Acfs::Model
# attribute :id, :uuid
# end
#
class UUID < Base
# @api public
#
# Check if given object looks like a UUID, eg:
# `450b7a40-94ad-11e3-baa8-0800200c9a66`
# Valid UUIDs are 16 byte numbers represented as
# a hexadecimal string in five sub-groups seperated
# by a dash. Each group has to consist of a fixed
# number of hexadecimal digits:
# | Group | Digits |
# | -----:|:------ |
# | 1 | 8 |
# | 2 | 4 |
# | 3 | 4 |
# | 4 | 4 |
# | 5 | 12 |
#
# @param [Object] obj Object to cast.
# @return [String] Casted object as UUID.
#
def cast_type(obj)
obj = obj.to_s
return nil if nil_allowed? and obj == ''
raise ArgumentError.new "given String `#{obj}` does not look like a UUID" unless obj =~ /[0-9a-f]{8}(-[0-9a-f]{4}){3}-[0-9a-f]{12}/i
obj
end
end
# Lower-case alias for automatic type lookup
Uuid = UUID
end
Version data entries
35 entries across 35 versions & 1 rubygems