state

state.rb

class Hoge
  module States
    ALL = 'all'.freeze
    EVENT = 'event'.freeze
    GROUP = 'group'.freeze
  end
  
  def fuga
    case state
    when States::ALL
      # all
    when States::EVENT
      # event
    when States::GROUP
      # group
    else 
      # else 
    end
  end

end