Phalcon - validation in form - php

Question

I created a form with validation rules. Everything is fine, form is visible and works.
Problem is with validators. Only first validator works in addValidators([ ....])
My form class source code:
public function initialize()
{
$title = new Text('title');
$title->setLabel('Title of article');
$title->setFilters([
'striptags', 'trim'
]);
$title->addValidators([
new PresenceOf([
'message' => 'Title can not be empty'
]),
new StringLength([
'min' => 5,
'messageMinimum' => 'Title is too short. Should has more than 5 letters'
]),
new MYArticleAddCheckTitleValidator([
'message' => 'aaaaaaaaaaaaaaa'
])
]);
$this->add($title);
..........
Validator PresenceOf works fine. validation flash message is visible.
Validator StringLength does not work. It looks like form doesn't know about it
Validator MYArticleAddCheckTitleValidator (my own validator class) - the same as StringLength.
Phalcon version 2.0.4 on windows.
Any proposition, or suggestions ?
Thanks a lot.

Answer 1

Using Phalcon\Flash\Direct
The best way to get around this problem is to use flash messages, with the class Phalcon\Flash\Direct. You can find the documentation here.
This strategy is used by the phalcon vokuro project which I suggest you to look at.
The key of this solution is the message() function inside your form class.
Form class
<?php
namespace Your\App\Forms;
use Phalcon\Forms\Form;
use Phalcon\Forms\Element\Text;
use Phalcon\Validation\Message;
use Phalcon\Validation\Validator\PresenceOf;
use Phalcon\Validation\Validator\StringLength;
use Your\App\Validation\MYArticleAddCheckTitleValidator;
class YourForm extends Form {
public function initialize()
{
$title = new Text('title');
$title->setLabel('Title of article');
$title->setFilters([
'striptags', 'trim'
]);
$title->addValidators([
new PresenceOf([
'message' => 'Title can not be empty'
]),
new StringLength([
'min' => 5,
'messageMinimum' => 'Title is too short. Should has more than 5 letters'
]),
new MYArticleAddCheckTitleValidator([
'message' => 'aaaaaaaaaaaaaaa'
])
]);
$this->add($title);
}
/**
* Prints messages for a specific element. Call it in the view
*/
public function messages($name)
{
if ($this->hasMessagesFor($name)) {
foreach ($this->getMessagesFor($name) as $message) {
$this->flash->error($message);
}
}
}
}
Controller
<?php
namespace Your\App;
use Your\App\YourForm;
class YourController extends ControllerBase
{
public function indexAction()
{
$form = new YourForm();
$this->view->form = $form;
if($this->request->hasQuery('title')){
if ($form->isValid($this->request->getQuery()) != false) {
// Code when form is valid
}
}
}
}
View
If you follow the suggested schema should be located in /app/views/your/index.html
<form method="GET" action="">
<?= $form->label('title') ?>
<?= $form->render('title')?>
<?= $form->messages('title') //show messages here ?>
</form>
If you have more than one form, it is useful to register the flash service with the DI.
When you define your services (could be in the index.php in the root folder or services.php in the /app/config/ folder) you define your flash service:
<?php
use Phalcon\DI\FactoryDefault;
$di = new FactoryDefault();
// Register the flash service with custom CSS classes
$di->set('flash', function () {
$flash = new Phalcon\Flash\Direct(
array(
'error' => 'your-error-class',
'success' => 'your-success-class',
'notice' => 'your-notice-class',
'warning' => 'your-warning-class'
)
);
return $flash;
});