<?php

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

class CreateGoodsTable extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        if (Schema::hasTable('goods')) {
            return;
        }
        Schema::defaultStringLength(191);
        Schema::create('goods', function (Blueprint $table) {
            $table->bigIncrements('id');
            $table->string('title');
            $table->string('img_url')->nullable()->comment('商品图片');
            $table->unsignedBigInteger('type_id')->comment('商品种类id');
            $table->unsignedBigInteger('brand_id')->nullable()->comment('商品品牌id');
            $table->string('goods_code', 32)->unique()->comment('商品编码');
            $table->timestamps();
            // 索引
        });
    }

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