zend-form select optgroup, how to specify id - zend-framework

Question

Hello i am using Zend Framework Form and have tried to get this example to work http://framework.zend.com/issues/browse/ZF-8252, but it fails xD
this is my code
$options = Array
(
[] => Qualsiasi Agente
[agenti_attivi] => Array
(
[4] => Giovanni Abc
[10] => Luigi Abc
[13] => Michela Abc
)
);
$agenti->addMultiOptions($options);
and the generated code is :
<select name="agente_id" id="agente_id" tabindex="6">
<option value="" label="Qualsiasi Agente" selected="selected">Qualsiasi Agente</option>
<optgroup id="agente_id-optgroup-Agenti attivi: " label="Agenti attivi: ">
<option value="4" label="Giovanni Abc">Giovanni Abc</option>
<option value="10" label="Luigi Capoarea">Luigi Abc</option>
<option value="13" label="Michela Abc">Michela Abc</option>
</optgroup>
</select>
where id="agente_id-optgroup-Agenti attivi: " is not xhtml valid Line 724, Column 44: value of attribute "id" must be a single token
i am using zend 1.11.10
thanks

Answer 1

Create a custom view helper FormSelect that extends the core FormSelect and then modify the code.
Include the path to your view helpers in the bootstrap file
protected function _initHelpers()
{
$this->bootstrap('view');
$view = $this->getResource('view');
$view->addHelperPath('My/View/Helper', 'My_View_Helper');
}
The custom view helper. It's a copy of Zend_View_Helper_FormSelect but with small modification.
class My_View_Helper_FormSelect extends Zend_View_Helper_FormSelect
{
public function formSelect($name, $value = null, $attribs = null,
$options = null, $listsep = "<br />\n")
{
$info = $this->_getInfo($name, $value, $attribs, $options, $listsep);
extract($info); // name, id, value, attribs, options, listsep, disable
// force $value to array so we can compare multiple values to multiple
// options; also ensure it's a string for comparison purposes.
$value = array_map('strval', (array) $value);
// check if element may have multiple values
$multiple = '';
if (substr($name, -2) == '[]') {
// multiple implied by the name
$multiple = ' multiple="multiple"';
}
if (isset($attribs['multiple'])) {
// Attribute set
if ($attribs['multiple']) {
// True attribute; set multiple attribute
$multiple = ' multiple="multiple"';
// Make sure name indicates multiple values are allowed
if (!empty($multiple) && (substr($name, -2) != '[]')) {
$name .= '[]';
}
} else {
// False attribute; ensure attribute not set
$multiple = '';
}
unset($attribs['multiple']);
}
// now start building the XHTML.
$disabled = '';
if (true === $disable) {
$disabled = ' disabled="disabled"';
}
// Build the surrounding select element first.
$xhtml = '<select'
. ' name="' . $this->view->escape($name) . '"'
. ' id="' . $this->view->escape($id) . '"'
. $multiple
. $disabled
. $this->_htmlAttribs($attribs)
. ">\n ";
// build the list of options
$list = array();
$translator = $this->getTranslator();
foreach ((array) $options as $opt_value => $opt_label) {
if (is_array($opt_label)) {
$opt_disable = '';
if (is_array($disable) && in_array($opt_value, $disable)) {
$opt_disable = ' disabled="disabled"';
}
if (null !== $translator) {
$opt_value = $translator->translate($opt_value);
}
$opt_id = ' id="' . $this->formatElementId($id . '-optgroup-' . $opt_value) . '"';
$list[] = '<optgroup'
. $opt_disable
. $opt_id
. ' label="' . $this->view->escape($opt_value) .'">';
foreach ($opt_label as $val => $lab) {
$list[] = $this->_build($val, $lab, $value, $disable);
}
$list[] = '</optgroup>';
} else {
$list[] = $this->_build($opt_value, $opt_label, $value, $disable);
}
}
// add the options to the xhtml and close the select
$xhtml .= implode("\n ", $list) . "\n</select>";
return $xhtml;
}
private function formatElementId($id)
{
// in here put whatever filter you want for the id value
$id = trim(strtr($id, array('[' => '-', ']' => '', ' ' => '', ':' => '')), '-');
$id = strtolower($id);
return $id;
}
}
Done. Create multi select element with a valid id.
<?php
$this->addElement('multiSelect', 'agente_id', array(
'label' => 'Label Name:',
'multiOptions' => array(
'' => 'Qualsiasi Agente',
'Agenti attivi: ' => array(
4 => 'Giovanni Verdi',
10 => 'Luigi Capoarea',
13 => 'Michela Passarin',
)
)
));

Answer 2

try this, it's works for me:
$select = new Zend_Form_Element_Select('select');
$options = Array(
'' => 'Qualsiasi Agente',
'agenti_attivi' => Array(
4 => 'Giovanni Verdi',
10 => 'Luigi Capoarea',
13 => 'Michela Passarin'
)
);
$this->addElements(array($xxxx,$select,$yyyy)); // $this : the form instance
and the result is:
<select id="select" name="select">
<option label="Qualsiasi Agente" value="">Qualsiasi Agente</option>
<optgroup label="agenti_attivi">
<option label="Giovanni Verdi" value="4">Giovanni Verdi</option>
<option label="Luigi Capoarea" value="10">Luigi Capoarea</option>
<option label="Michela Passarin" value="13">Michela Passarin</option>
</optgroup>
</select>
the problem is that the id attribute does not accept spaces and special special characters:
id="agente_id-optgroup-Agenti attivi: "

Answer 3

Zend is usually pretty good about rendering the proper html, given a doctype.
Try setting your doctype like this if you aren't already.
<?php
$viewRenderer = Zend_Controller_Action_HelperBroker::getStaticHelper('viewRenderer');
$viewRenderer->initView();
$viewRenderer->view->doctype('XHTML1_STRICT');
AND
<?php echo $this->doctype(); ?>
at the top of your layout
I don't have a install of ZF i can mess with easy, if this doesn't work ill setup a test environment.