public function performValidation(ZFormElement $target)
{
if ($this->_validator && ($this->_runat & self::SERVER) != 0) {
$validator = new ZValidator();
if ($this->_options) {
$args = array_pad($this->_options, count($this->_options) * -1 - 1, $target->getValue());
return call_user_func_array(array($validator, $this->_validator), $args);
} else {
return $validator->{$this->_validator}($target->getValue());
}
}
return false;
}
/**
* Delivers the event to the registered event listeners for the type
* specified by the event from the subject.
* If a listeners is an object fire attempts to invoke the methods
* defined by concatenating 'on' with the id of the source object
* and the type of the method. For example if:
* the source id = test
* the type of ONVALUECHANGE
* the method name would be -> onTestChange
* If that method does not exist and the listener is an instanceof
* ZFormElementEventListenerInterface the general handleEvent is
* invoked.
* Finally if the object listener is a string and a callable the
* function is invoked with the event as an argument
*
* @return boolean true no listeners found or the the result of
* invoking the listeners method/function.
*/
public function fire()
{
$listeners = $this->_source->getEventListeners($this->_type);
if ($listeners) {
foreach ($listeners as $listener) {
$methodName = 'on' . ucfirst($this->_source->getID()) . $this->_type;
/**
* @todo check visibility - method_exists() returns true on priv/prot as well
*/
if (is_object($listener)) {
if (is_callable(array($listener, $methodName))) {
return $listener->{$methodName}($this);
} else {
if ($listener instanceof ZFormElementEventListenerInterface) {
return $listener->handleEvent($this);
} else {
throw new ZFormElementException("Event handler not found for ");
}
}
} elseif (is_string($listener) && is_callable($listener)) {
// @todo can this work?
return $listener($this);
}
}
}
return true;
}
/**
* Support methods for gathering and redistributing mementos to th
* children of the element (@see persist(), @see restoreState())
*
* @param ZFormElement $visiting
* @param array $mementos
*/
protected function _restoreMementos($visiting, &$mementos)
{
$memento = $mementos[$visiting->getIDPath()];
$visiting->setAllowEvents(false);
if ($memento) {
$visiting->setMemento($memento);
}
if ($visiting->hasChildNodes()) {
foreach ($visiting->_childNodes as $child) {
$this->_restoreMementos($child, $mementos);
}
}
$visiting->setAllowEvents(true);
}
/**
* Retrieves the data associated with this element from the ZRequest object.
*
* @returns void
* @todo I don't like getting from both get and post,
* Options include getting parent until a form is identified
* Potentially pass bucket in as well
* I don't like searching up, because for other controls you may not
* be contained withing a form
*/
public function loadRequestData()
{
$id = $this->name ? $this->name : $this->getID();
$value = ZRequest::get($id);
if (!$value) {
$value = ZRequest::post($id);
}
if ($value) {
$this->setValue($value);
}
return parent::loadRequestData();
}
