# DurationValidator
#
# Validate the format conforms with ChronicDuration
#
# Example:
#
# class ApplicationSetting < ActiveRecord::Base
# validates :default_artifacts_expire_in, presence: true, duration: true
# end
#
class DurationValidator < ActiveModel::EachValidator
def validate_each(record, attribute, value)
ChronicDuration.parse(value)
rescue ChronicDuration::DurationParseError
record.errors.add(attribute, "is not a correct duration")
end
end