Adds a migration to create checkout acceptances

This creates the checkout acceptances for assets (basically what was previously shown in the „Unaccepted Assets“-report) when migrating the database

database/migrations/2018_09_10_082212_create_checkout_acceptances_for_unaccepted_assets.php

@@ -0,0 +1,43 @@
+<?php
+
+use App\Models\Actionlog;
+use Illuminate\Database\Migrations\Migration;
+use Illuminate\Database\Schema\Blueprint;
+use Illuminate\Support\Facades\DB;
+use Illuminate\Support\Facades\Schema;
+
+class CreateCheckoutAcceptancesForUnacceptedAssets extends Migration
+{
+    /**
+     * Run the migrations.
+     *
+     * @return void
+     */
+    public function up()
+    {
+        // Get all assets not accepted
+        $assets = DB::table('assets')->where('assigned_type', 'App\Models\User')->where('accepted', 'pending')->get();
+
+        $acceptances = [];
+
+        foreach($assets as $asset) {
+            $acceptances[] = [
+                'checkoutable_type' => 'App\Models\Asset',
+                'checkoutable_id'   => $asset->id,
+                'assigned_to_id'    => $asset->assigned_to,
+            ];
+        }
+
+        DB::table('checkout_acceptances')->insert($acceptances);        
+    }
+
+    /**
+     * Reverse the migrations.
+     *
+     * @return void
+     */
+    public function down()
+    {
+        //
+    }
+}