db/migrate/20140610115217_populate_participation_starter.rb
def find_starter_participation(all_participations, starter)
    Maybe(all_participations).map do |participations|
      participations.find do |participation|
        participation.person == starter
      end
    end
  end
# Give participations and first_message_sender, get back Maybe
Give participations and first_message_sender, get back Maybe
Give participations and first_message_sender get back Maybe
def find_starter_participation(all_participations, starter)
    Maybe(all_participations).map do |participations|
      participations.find do |participation|
        participation.person == starter
      end
    end
  end
def find_starter_participation ( all_participations , starter ) Maybe ( all_participations ) . map do | participations | participations . find do | participation | participation . person == starter end end end
Give participations and first_message_sender, get back Maybe
Give participations and first_message_sender get back Maybe
all_participations
starter