Update repository base code to be cleaner and make use of PHP 7 features

app/Repositories/Eloquent/ScheduleRepository.php

@@ -1,23 +1,19 @@
 <?php
-/**
- * Pterodactyl - Panel
- * Copyright (c) 2015 - 2017 Dane Everitt <dane@daneeveritt.com>.
- *
- * This software is licensed under the terms of the MIT license.
- * https://opensource.org/licenses/MIT
- */
 
 namespace Pterodactyl\Repositories\Eloquent;
 
 use Pterodactyl\Models\Schedule;
 use Illuminate\Support\Collection;
+use Illuminate\Database\Eloquent\ModelNotFoundException;
 use Pterodactyl\Exceptions\Repository\RecordNotFoundException;
 use Pterodactyl\Contracts\Repository\ScheduleRepositoryInterface;
 
 class ScheduleRepository extends EloquentRepository implements ScheduleRepositoryInterface
 {
     /**
-     * {@inheritdoc}
+     * Return the model backing this repository.
+     *
+     * @return string
      */
     public function model()
     {
@@ -45,19 +41,20 @@ class ScheduleRepository extends EloquentRepository implements ScheduleRepositor
      */
     public function getScheduleWithTasks(int $schedule): Schedule
     {
-        /** @var \Pterodactyl\Models\Schedule $instance */
-        $instance = $this->getBuilder()->with('tasks')->find($schedule, $this->getColumns());
-        if (! $instance) {
+        try {
+            return $this->getBuilder()->with('tasks')->findOrFail($schedule, $this->getColumns());
+        } catch (ModelNotFoundException $exception) {
             throw new RecordNotFoundException;
         }
-
-        return $instance;
     }
 
     /**
-     * {@inheritdoc}
+     * Return all of the schedules that should be processed.
+     *
+     * @param string $timestamp
+     * @return \Illuminate\Support\Collection
      */
-    public function getSchedulesToProcess($timestamp)
+    public function getSchedulesToProcess(string $timestamp): Collection
     {
         return $this->getBuilder()->with('tasks')
             ->where('is_active', true)