zend array[] element with validator - zend-framework

Question

hello i have a form where the user can click on a button and dinamically add new elements(with Jquery)
<input name="sconto[]" type="text"><br>
<input name="sconto[]" type="text"><br>
<input name="sconto[]" type="text"><br>
...
I have a custom validator for float numbers in format with comma and dot separation like 20.50 and 20,50
The problem is i can't seem to find how to make zend apply it it to each element of the array.
So how should i declare this element and how to apply the validator? xD
this is my validator
protected $_messageTemplates = array(
self::NON_E_NUMERO => 'non sembra essere un numero'
);
public function isValid($value, $context = null)
{
$pos_virgola = strpos($value, ",");
if ($pos_virgola !== false)
$value = str_replace(",", ".", $value);
if (!is_numeric($value))
{
$this->_error(self::NON_E_NUMERO, $value);
return false;
}
else
return true;
}
}
the form i don't know how to do it, i use this but obviously it doesn't work
$sconto = $this->createElement('text','sconto')->setLabel('sconto');
//->setValidators(array(new Gestionale_Validator_Float()));
$this->addElement($sconto);
...
$sconto->setDecorators(array(//no ViewHelper
'Errors',
'Description',
array(array('data' => 'HtmlTag'), array('tag' => 'td', /*'class' => 'valore_campo', */'id'=>'sconto')),
array('TdLabel', array('placement' => 'prepend', 'class' => 'nome_campo'))
));

Answer 1

If Marcin comment is not what you want to do, then this is another way to create multi text element.
Create a custom decorator 'My_Form_Decorator_MultiText'. You will need to register your custom decorator class. Read Zend Framework doc for details http://framework.zend.com/manual/en/zend.form.decorators.html
class My_Form_Decorator_MultiText extends Zend_Form_Decorator_Abstract {
public function render($content) {
$element = $this->getElement();
if (!$element instanceof Zend_Form_Element_Text) {
return $content;
}
$view = $element->getView();
if (!$view instanceof Zend_View_Interface) {
return $content;
}
$values = $element->getValue();
$name = $element->getFullyQualifiedName();
$html = '';
if (is_array($values)) {
foreach ($values as $value) {
$html .= $view->formText($name, $value);
}
} else {
$html = $view->formText($name, $values);
}
switch ($this->getPlacement()) {
case self::PREPEND:
return $html . $this->getSeparator() . $content;
case self::APPEND:
default:
return $content . $this->getSeparator() . $html;
}
}
}
Now your validation class will validate each element value
class My_Validate_Test extends Zend_Validate_Abstract {
const NON_E_NUMERO = 'numero';
protected $_messageTemplates = array(
self::NON_E_NUMERO => 'non sembra essere un numero'
);
public function isValid($value, $context = null) {
if (!is_numeric($value)) {
$this->_error(self::NON_E_NUMERO, $value);
return false;
}
else
return true;
}
}
This is how you can use the new decorator
$element = new Zend_Form_Element_Text('sconto', array(
'validators' => array(
new My_Validate_Test(),
),
'decorators' => array(
'MultiText', // new decorator
'Label',
'Errors',
'Description',
array('HtmlTag', array('tag' => 'dl',))
),
'label' => 'sconto',
'isArray' => true // must be true
));
$this->addElement($element);
Hope this helps