New Model for Event,Booking and Course

app/Course.php

@@ -0,0 +1,23 @@
+<?php
+
+namespace App;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Course extends Model
+{
+    public function bookings()
+    {
+        return $this->morphMany('App\Booking', 'bookable');
+    }
+
+    public function user()
+    {
+    return $this->belongsTo('App\User');
+    }
+
+    public function event()
+    {
+    return $this->belongsTo('App\Event');
+    }
+}