gistfile1.txt

ls_arrival_ids = ReverseMigrator::Arrival::CsArrival.where(:arrival_id => cs_arrival_ids).select(:ls_arrival_id).map(&:ls_arrival_id)
grouped_lead_submissions = Persistent::LeadSubmission.where(:arrival_id => ls_arrival_ids, :school_id => school_id).group_by(&:school_id).each do |school_id, lead_submissions|
  leads_per_hour = lead_submissions.size / 24
  (0..23).each do |i|
    leads = lead_submissions[(i*leads_per_hour)..((i+1)*leads_per_hour)]
    leads.each_with_index do |ls,i|
      Resque.enqueue_in(i.hours, whatever)
    end
  end
end