zend array[] element with validator

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开发者_JAVA技巧', 'class' => 'nome_campo'))
    ));

If Marcin comment is not what you want to do, then this is another way to create multi text element.

1. 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;
       }
   }
   

   }

2. 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;
   }
   

   }

3. 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