Add migration

database/migrations/2016_12_27_212631_make_asset_assigned_to_polymorphic.php

@@ -0,0 +1,39 @@
+<?php
+
+use Illuminate\Support\Facades\Schema;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Database\Migrations\Migration;
+use App\Models\Asset;
+use App\Models\User;
+
+class MakeAssetAssignedToPolymorphic extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+         Schema::table('assets', function (Blueprint $table) {
+             //
+             $table->string('assigned_type')->nullable();
+         });
+
+        // Prior to this migration, asset's could only be assigned to users.
+        Asset::whereNotNull('assigned_to')->orWhere('assigned_to', '')->update(['assigned_type' => User::class]);
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        Schema::table('assets', function (Blueprint $table) {
+            //
+            $table->dropColumn('assigned_type');
+        });
+    }
+}