<?php

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

class CreateYzAnswer extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        //答案表
        if (!Schema::hasTable('yz_answer')) {
            Schema::create('yz_answer', function (Blueprint $table) {
                $table->increments('id');
                $table->integer('uniacid')->nullable()->comment('公众号ID');
                $table->integer('subject_id')->nullable()->comment('题目id');
                $table->string('content',255)->nullable()->comment('答案内容');
                $table->integer('answer')->nullable()->comment('正确答案');

                $table->integer('created_at')->nullable();
                $table->integer('updated_at')->nullable();
                $table->integer('deleted_at')->nullable();
            });
            \Illuminate\Support\Facades\DB::statement("ALTER TABLE `".app('db')->getTablePrefix()."yz_answer` comment'短视频答题--答案表'");//表注释
        }
    }

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