删除验证zend表单元素javascript / jquery

Question

I want to disable the validation on one of the zend form element based on the input on another element on the same form. I need to achieve this using javascript/jquery. Something very common but very surprisingly couldn't find it over the internet.

eg

In the controller:

$oFormMassEdit = new Account_Form_Returns_Return();
$this->view->form = $oFormMassEdit;

In Account_Form_Returns_Return's constructor:

$oNoteElement = new Zend_Form_Element_Textarea('option', array(
                                                'required'  => true,
                                  ));
$this->addElemet($oNoteElement)

$oReasonElement = new Zend_Form_Element_Select('note', array(
            'multiOptions'  => array (
                'return'  => 'return',
                'defect'  => 'Kaput',
                'other'   => 'Anderer Grund'
            ),
            'required'      => true,
                    ));
$this->addElement($oReasonElement);

$this->addDisplayGroup(array('note', 'option'), 'main', array('legend' => 'Retouren'));

$this->addElement('button','send', array(
           'type'   => 'submit',
           'label'  => 'Methode speichern',
        ));

and finally in the view,

<?= $this->form; ?>

Answer 1

Javascript can't (not in a sensible way) switch Zend_Form configuration. What you can do is changing the 'required' param for certain form fields on validation. For example; If you want to allow fieldTwo to be empty if fieldOne has 'desiredValue' as value you can achieve this using the following function in your form:

public function isValid($data) {
    if('desiredValue' == $data['fieldOne'])) {
        $this->getElement('fieldTwo')->setRequired(false);
    }

    return parent::isValid($data);
}