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module Validation
# UUID rule
module Rule
class Uuid
class UnknownVersion < StandardError; end
# params can be any of the folowing:
#
# - :version - v4 (only supports v4 at this time)
#
# Example:
#
# {:version => v4}
def initialize(params)
@params = params
end
def params
@params
end
def valid_value?(value)
value.nil? || !!uuid_regex.match(value.to_s)
rescue UnknownVersion
false
end
def error_key
:uuid
end
private
def uuid_regex
if params[:version] == 'v4'
uuid_v4_regex
else
raise UnknownVersion
end
end
def uuid_v4_regex
/^[0-9A-F]{8}-[0-9A-F]{4}-4[0-9A-F]{3}-[89AB][0-9A-F]{3}-[0-9A-F]{12}$/i
end
end
end
end
|
