snipe-it/database/migrations/2018_03_24_050108_add_cc_alerts.php

<?php

use Illuminate\Support\Facades\Schema;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Database\Migrations\Migration;

class AddCcAlerts extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('settings', function (Blueprint $table) {
            $table->char('admin_cc_email')->nullable()->default(null);
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('settings', function (Blueprint $table) {
            $table->dropColumn('admin_cc_email');
        });
    }
}