HTML_Quickform: date validation

[Tobik]

Hi

Here is a simple code from one of tutorial:

<?php
require_once "HTML/QuickForm.php";
$form = new HTML_QuickForm('frmTest', 'get');
$options = array(
'language' => 'en',
'format' => 'dMYHi',
'minYear' => 2001,
'maxYear' => 2005
);
$form->addElement('date', 'mydate', 'Choose date', $options);
$form->addElement('submit', 'btnSubmit', 'Submit');

if ($form->validate()) {
// Form is validated, then processes the data
$form->freeze();
$form->process('process_data', false);
}
else {
$form->display();
}

function process_data ($values) {
echo "<pre>";
var_dump($values);
echo "</pre>";
}
?>


It is possible to select an invalid date, like 31 February. How to create a rule, which validate it?

Regards,

Tobik.

[mark]

You need to add a rule with a callback function (cp. the manual examples for more details). This callback can then call PHP's checkdate() function to validate the submitted date. The values of the date element are available as an array with the keys as defined in your script (in your case: 'd', 'm', 'Y') inside the callback function.

[Tobik]

[mark]

[marxav]

Hi
I am now to PEAR and to this forum

I added a validate function in the QuickForm rule directory like so :

[mark]

Instead of modifying QuickForm.php (with the risk that your change will be overwritten on the next update), you should use $form->registerRule().

[marxav]

Hum interesting, but I am not sure how to use this.

$form->registerRule('date','callback','isDate'...

I get stuck here. Am I supposed to put callback, and where does my function isDate goes? I read this http://pear.php.net/manual/en/package.html.html-quickform.html-quickform.registerrule.php but I am still confused.

PS Yes I agree, modifying QuckForm is not a good thing, but by notifying of this, I was hoping it woud get implemented in future release of QuickForm. I think we all agree that checking for date is very common task.

[mark]

Please have a look at http://pear.php.net/manual/en/package.html.html-quickform.intro-validation.php, Example 43-1, and the text following the example.

In your case it would be something like

[marxav]

Wow I went the YourClassName route. This is outstanding!!

Thanks.