/**
  * Run the database seeds.
  *
  * @return void
  */
 public function run()
 {
     Message::truncate();
     $conversations = Conversation::get();
     foreach ($conversations as $conversation) {
         $users = $conversation->users;
         for ($i = 0, $count = rand(1, 5); $i < $count; $i++) {
             $message = factory(Message::class)->create();
             $message->conversation_id = $conversation->id;
             if (rand(0, 1)) {
                 $message->to_user_id = $users[0]->id;
                 $message->from_user_id = $users[1]->id;
             } else {
                 $message->to_user_id = $users[1]->id;
                 $message->from_user_id = $users[0]->id;
             }
             $message->save();
         }
     }
 }