Add methods to various page controllers for handling index, store, and show actions

app/Models/Career.php

@@ -0,0 +1,15 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Career extends Model
+{
+    protected $fillable = [
+        'title',
+        'description',
+        'location',
+        'salary',
+    ];
+}