<?php

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

class AddApplicationIdInQueueLog extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('queue_log', function (Blueprint $table) {
            $table->integer('application_id')->nullable()->index(); 
            // nullable numeric column with index
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('queue_log', function (Blueprint $table) {
            $table->dropIndex(['application_id']); // drop index first
            $table->dropColumn('application_id');  // then drop the column
        });
    }
}