<?php

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

class CreateRelatedProductsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('related_products', function (Blueprint $table) {
            $table->integer('product_id')->unsigned();
            $table->integer('related_product_id')->unsigned();

            $table->primary(['product_id', 'related_product_id']);
            $table->foreign('product_id')->references('id')->on('products')->onDelete('cascade');
            $table->foreign('related_product_id')->references('id')->on('products')->onDelete('cascade');
        });
    }


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