/**
  * Run the database seeds.
  *
  * @return void
  */
 public function run()
 {
     // SET UP NEW CARBON DATES
     $_old = '2016/san-antonio';
     $_new = (object) ['slug' => '2017/san-antonio', 'published' => Carbon::create(2016, 01, 18, 16, 30, 00), 'start' => Carbon::create(2017, 01, 18, 07, 00, 00), 'end' => Carbon::create(2017, 01, 18, 16, 30, 00)];
     // DELETE DUPLICATES
     $conference = Conference::where('slug', '=', $_new->slug)->delete();
     $forceDel = Conference::onlyTrashed()->forceDelete();
     $agenda = Agenda::where('conference_slug', '=', $_new->slug)->delete();
     $forceDel = Agenda::onlyTrashed()->forceDelete();
     $option = Option::where('slug', '=', $_new->slug)->delete();
     $forceDel = Option::onlyTrashed()->forceDelete();
     unset($conference, $agenda, $option, $forceDel);
     // RESCHEDULE CONFERENCE
     $conference = Conference::where('slug', '=', $_old)->update(['slug' => $_new->slug, 'start_date' => $_new->start, 'end_date' => $_new->end, 'published' => $_new->published]);
     // UPDATE OPTIONS
     $option = Option::where('slug', '=', $_old)->update(['slug' => $_new->slug]);
     // UPDATE AGENDA
     $agendas = Agenda::where('conference_slug', '=', $_old)->get();
     foreach ($agendas as $agenda) {
         $agenda->conference_slug = $_new->slug;
         $agenda->timeslot = $_new->start->format('Y-m-d') . ' ' . $agenda->timeslot->format('H:i:s');
         $agenda->save();
     }
     // UPDATE SPEAKERS
     $speakers = Speaker::where('conference_slug', '=', $_old)->update(['conference_slug' => $_new->slug]);
 }