[BUG]: Field filters do not work if validators are not specified.

[dev-fan]

Field filters do not work if validators are not specified.

Steps to reproduce the behavior:
I used the Filter::FILTER_TRIM filter for this example. If addValidator is missing, the filters aren't applied. I enter spaces in the field and submit the form. The DTO object is then assigned a value containing spaces.

<?php

declare(strict_types=1);

require_once '../init.php';

use Phalcon\Filter\Filter;
use Phalcon\Filter\Validation\Validator\Numericality;
use Phalcon\Forms\Element\Submit;
use Phalcon\Forms\Element\Text;
use Phalcon\Forms\Form;

class ExampleForm extends Form
{

    public function initialize(?object $entity = null, array $options = [])
    {
        $field = new Text('test1', ['size' => 10, 'maxlength' => 10]);
        $field->setLabel('Test');
        $field->setFilters([Filter::FILTER_TRIM]);
        $this->add($field);

        $field = new Text('test2', ['size' => 10, 'maxlength' => 10]);
        $field->setLabel('Test');
        $field->setFilters([Filter::FILTER_TRIM]);
        $field->addValidator(new Numericality(['message' => _('Test failed'), 'allowEmpty' => true]));
        $this->add($field);

        $submit = new Submit('submit', ['id' => 'register', 'value' => 'Send']);
        $this->add($submit);
    }
}

$dto = new \stdClass();
$dto->test = null;
$form = new ExampleForm($dto);
$form->bind($di['request']->getQuery(), $dto);
if ($di['request']->isPost()) {
    echo '<div style="border: 2px solid blue;">$_POST: ';var_dump($di['request']->getPost());echo '</div>';
    if ($form->isValid($di['request']->getPost(), $dto)) {
        echo '<div style="border: 2px solid blue;">DTO after isValid: ';var_dump($dto);echo '</div>';
    }
}
?>
<form method="POST" ><?php
foreach ($form as $element) {
    echo $element->render();
}
?></form>

// Result
$_POST:
array (size=3)
  'test1' => string '   ' (length=3)
  'test2' => string '   ' (length=3)
  'submit' => string 'Send' (length=4)

DTO after isValid:
object(stdClass)[123]
  public 'test' => null
  public 'test1' => string '   ' (length=3)
  public 'test2' => string '' (length=0)
  public 'submit' => string 'Send' (length=4)

Expected behavior
I think the expected behavior is to apply filters regardless of whether validators are specified for this field or not. This behavior existed before version 5.10.0.

Screenshots

Details

• Phalcon version: 5.10.0
• PHP Version: PHP 8.4.16 (cli) (built: Dec 18 2025 23:38:53) (NTS)
• Operating System: Ubuntu 24.04
• Server: Nginx

[wurst-hans]

Same for me. Thanks for finding out. Upgrade from 5.9.3 to 5.10.0 broke my application because of that. I'm using dedicated form classes and separated validation classes. Even in this case, filters on form elements are not applied/executed when data is handed over to validation class, because form filters are not passed through from form to validation class.