staffmanager/database/migrations/2020_06_08_153602_create_bans_table.php

<?php

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

class CreateBansTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('bans', function (Blueprint $table) {
            $table->id();
            $table->bigInteger('userID')->unsigned();
            $table->string('reason');
            $table->timestamp('bannedUntil')->nullable();
            $table->string('userAgent');
            $table->bigInteger('authorUserID');
            $table->timestamps();

            $table->foreign('userID')
                ->references('id')
                ->on('users');

        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::dropIfExists('bans');
    }
}