laravel 使用artisan命令新增数据库字段

php artisan make:migration create_comments_table

<?php

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

class CreateCommentTable extends Migration {

	/**
	 * Run the migrations.
	 *
	 * @return void
	 */
	public function up()
	{
        Schema::create('comment',function(Blueprint $table){
            $table->engine = 'InnoDB';
            $table->increments('id');
            $table->integer('news_id');
            $table->string('author_name');
            $table->string('author_url');
            $table->string('author_key');
            $table->string('ip');
            $table->string('message');
            $table->string('mail');
            $table->integer('create_time');
            $table->integer('parent_id');
        });
	}

	/**
	 * Reverse the migrations.
	 *
	 * @return void
	 */
	public function down()
	{
		//
	}

}

php artisan migrate
php artisan migrate:refresh
php artisan db:seed