Laravelデータベース作成

<?php

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

class CreateBlogTable extends Migration {

        /**
         * Run the migrations.
         *
         * @return void
         */
        public function up()
        {
                //
                Schema::create('blog', function (Blueprint $table) {
                $table->increments('id');
                $table->string('name');
                $table->dateTime('created_at');
                //$table->timestamp('published_at')->useCurrent(); 
                });
        }

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

}