<?php

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

class CreateProductSkusTable extends Migration
{
	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
		Schema::create('product_skus', function (Blueprint $table) {
			$table->id();
			$table->unsignedBigInteger('product_id');
			$table->string('code');
			$table->timestamps();
			
			$table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');
			$table->index(['product_id', 'code']);
		});
	}
	
	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down()
	{
		Schema::dropIfExists('product_skus');
	}
}