ما الحقل الموافق لهذا الحقل CURRENT_DATE في لارافيل؟

ما الحقل الموافق لهذا الحقل ؟

CURRENT_DATE في قاعدة البيانات ؟ 

<?php

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

class AddExpiryDateToCouponsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('coupons', function (Blueprint $table) {
            $table->date('expiry_date')->default(DB::raw('CURRENT_DATE'));
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('coupons', function (Blueprint $table) {
            $table->date('expiry_date')->default(DB::raw('CURRENT_DATE'));
        });
    }
}
// نص الخطأ
SQLSTATE[42000]: Syntax error or access violation: 1064 You have an error in your SQL syntax; check the manual that corresponds to your MariaDB server version for the right syntax to use near 'current_date' at line 1 (SQL: alter table `coupons` add `expiry_date` date not null default current_date)