<?php

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

class CreateBlockLinkTable extends Migration
{

    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::create('block_link', function (Blueprint $table) {
            $table->unsignedBigInteger('block_id');
            $table->unsignedBigInteger('link_id');
            $table->integer('position')->nullable();
            $table->primary(['block_id', 'link_id']);

            $table->foreign('block_id')->references('id')
                ->on('blocks')->onDelete('CASCADE')->onUpdate('CASCADE');
            $table->foreign('link_id')->references('id')
                ->on('links')->onDelete('CASCADE')->onUpdate('CASCADE');
        });
    }

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