baoshi-was/database/migrations/2020_06_02_130804_change_user_duty_check.php

<?php

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

class ChangeUserDutyCheck extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('user_duty_checks', function (Blueprint $table) {
            $table->bigInteger('workgroup_id')->nullable()->comment('外键到工作组');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('user_duty_checks', function (Blueprint $table) {
            $table->dropColumn('workgroup_id');
        });
    }
}