Added foreign key constraint to redirect to

database/migrations/2017_09_20_225456_AddForeignKeyToRedirect.php

@@ -0,0 +1,32 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+
+class AddForeignKeyToRedirect extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        Schema::table('users', function (Blueprint $table) {
+			$table->foreign('redirect_to')->references('id')->on('users')->onUpdate('RESTRICT')->onDelete('RESTRICT');
+        });
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('users', function (Blueprint $table) {
+			$table->dropForeign('users_redirect_to_foreign');
+        });
+    }
+}