ldc-com-app-bo/app/Http/Requests/Bo/AppUser/UpdateAppUserRequest.php

<?php

namespace App\Http\Requests\Bo\AppUser;

use Illuminate\Validation\Rule;
use Illuminate\Validation\Rules\Password;

class UpdateAppUserRequest extends StoreAppUserRequest
{
    /**
     * Get the validation rules that apply to the request.
     *
     * @return array
     */
    public function rules()
    {
        $rules = [
            'email' => [
                'required',
                'min:3',
                'max:255',
                'email:rfc,dns',
                Rule::unique('app_users', 'email')->ignore($this->route('app_user')->id),
            ],
            'password' => [
                'sometimes', 'nullable', 'required_with:password_confirmation', 'confirmed', 'max:255',
                Password::min(8)
                    ->letters()
                    ->mixedCase()
                    ->numbers()
                    ->symbols()
            ],
        ];
        return array_merge(parent::rules(), $rules);
    }
}