Add Subscriber demo

core/app/Models/Subscriber.php

@@ -0,0 +1,30 @@
+<?php
+
+namespace App\Models;
+
+use Illuminate\Database\Eloquent\Model;
+
+class Subscriber extends Model
+{
+    protected $table = 'subscribers';
+
+    public static function add($event, $callback, $weight = 0)
+    {
+        list($destination_module, $destination_method) = explode(':', $callback);
+        list($source_module, $source_method) = explode(':', $event);
+
+        $code = strtolower($destination_module . '_' . $destination_method . '_after_' . $source_module . '_' . $source_method);
+
+        if (Subscriber::where('code', $code)->count() == 0) {
+            $subscriber = new Subscriber([
+                'code' => $code,
+                'destination_module' => strtolower($destination_module),
+                'destination_method' => strtolower($destination_method),
+                'source_module' => strtolower($source_module),
+                'source_method' => strtolower($source_method),
+                'weight' => $weight
+            ]);
+            $subscriber->save();
+        }
+    }
+}