rosa-build/lib/modules/models/time_living.rb

module Modules
  module Models
    module TimeLiving
      extend ActiveSupport::Concern

      included do

        validates :time_living, numericality: {
          only_integer: true
        }, presence: true

        validate lambda {
          # MIN_TIME_LIVING <= time_living <= MAX_TIME_LIVING or
          # 2 min <= time_living <= 12 hours
          # time_living in seconds
          min = self.class.const_defined?(:MIN_TIME_LIVING) ? self.class::MIN_TIME_LIVING : 120
          max = self.class.const_defined?(:MAX_TIME_LIVING) ? self.class::MAX_TIME_LIVING : 43200
          if min > time_living.to_i || time_living.to_i > max
            errors.add :time_living, I18n.t('flash.time_living.numericality_error',
                                            min: (min / 60),
                                            max: (max / 60)
                                          )
          end
        }

        before_validation :convert_time_living

        attr_accessible :time_living
      end

      protected

      def convert_time_living
        self.time_living = time_living.to_i * 60 if time_living_was.to_i != time_living.to_i
      end
    end
  end
end