/**
* Get value
*
* If element type is one of the button types, returns the label.
*
* @param Zend_Form_Element $element
* @return string|null
*/
public function getValue($element)
{
if (!$element instanceof Zend_Form_Element) {
return null;
}
foreach ($this->_buttonTypes as $type) {
if ($element instanceof $type) {
return $element->getLabel();
}
}
foreach ($this->_checkboxTypes as $type) {
if ($element instanceof $type) {
return $element->getCheckedValue();
}
}
return $element->getValue();
}
