[FORM] input connect database

hi, i want creat connection with attribute col name in database on input mayby i show what i mean.

<?php
namespace ...;

use Phalcon\Forms\Element\Text;

use Phalcon\Validation\Validator\PresenceOf;
use Phalcon\Validation\Validator\Uniqueness;

class UserForm extends FormBase
{
    public function initialize($entity = null, $options = null)
    {
        $login = new Text('user', [
            'class' => 'form-control',
            'attr' => 'user_login' // <- conection to database col
        ]);

        $login->addValidators([
            new Uniqueness([
                'model' => new UserAccount(),
                'message' => 'user is exsit',
                'attribute' => 'user_login'  // <- move this to input
            ]),
            new PresenceOf([
                'message' => 'required'
            ])
        ]);

        $login->setLabel('Login');
        $this->add($login);
    }
}

render input of name user but connect into user_login entity

That's my question, can I do that?