BookStack/database/migrations/2020_08_04_131052_remove_role_name_field.php

<?php

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

return new class extends Migration
{
    /**
     * Run the migrations.
     *
     * @return void
     */
    public function up()
    {
        Schema::table('roles', function (Blueprint $table) {
            $table->dropColumn('name');
        });
    }

    /**
     * Reverse the migrations.
     *
     * @return void
     */
    public function down()
    {
        Schema::table('roles', function (Blueprint $table) {
            $table->string('name')->index();
        });

        DB::table('roles')->update([
            'name' => DB::raw("lower(replace(`display_name`, ' ', '-'))"),
        ]);
    }
};