Contents

# frozen_string_literal: true

module Kredis::DefaultValues
  extend ActiveSupport::Concern

  prepended do
    attr_writer :default

    proxying :watch, :unwatch, :exists?

    def default
      case @default
      when Proc   then @default.call
      when Symbol then send(@default)
      else @default
      end
    end

    private
      def set_default
        raise NotImplementedError, "Kredis type #{self.class} needs to define #set_default"
      end
  end

  def initialize(...)
    super

    if default
      watch do
        set_default unless exists?

        unwatch
      end
    end
  end
end

Version data entries

3 entries across 3 versions & 1 rubygems

Version	Path
kredis-1.7.0	lib/kredis/default_values.rb
kredis-1.6.1	lib/kredis/default_values.rb
kredis-1.6.0	lib/kredis/default_values.rb