2021_06_30_103807_change_advertisements_column_nullable.php

<?php

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

class ChangeAdvertisementsColumnNullable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('advertisements', function (Blueprint $table) {
            $table->bigInteger('campaign_id')->unsigned()->nullable();
            $table->bigInteger('ad_group_id')->unsigned()->nullable();
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        //
    }
}