add listener 310

app/Listeners/Updates/v3/Version310.php

@@ -0,0 +1,36 @@
+<?php
+
+namespace Crater\Listeners\Updates\v3;
+
+use Illuminate\Contracts\Queue\ShouldQueue;
+use Illuminate\Queue\InteractsWithQueue;
+use Crater\Listeners\Updates\Listener;
+use Illuminate\Database\Schema\Blueprint;
+use Crater\Events\UpdateFinished;
+
+class Version310
+{
+    /**
+     * Create the event listener.
+     *
+     * @return void
+     */
+    public function __construct()
+    {
+        //
+    }
+
+    /**
+     * Handle the event.
+     *
+     * @param  object  $event
+     * @return void
+     */
+    public function handle(UpdateFinished $event)
+    {
+        \Schema::table('expenses', function (Blueprint $table) {
+            $table->integer('user_id')->unsigned()->nullable();
+            $table->foreign('user_id')->references('id')->on('users')->onDelete('cascade');
+        });
+    }
+}