dootask/database/migrations/2024_11_05_151611_add_users_lang.php

<?php

use App\Models\User;
use Illuminate\Database\Migrations\Migration;
use Illuminate\Database\Schema\Blueprint;
use Illuminate\Support\Facades\Schema;

class AddUsersLang extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('users', function (Blueprint $table) {
            if (!Schema::hasColumn('users', 'lang')) {
                $table->string('lang', 20)->nullable()->default('')->after('bot')->comment('语言首选项');
            }
        });
    }

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