/**
* Returns the current sub-form in a sequence and advances the internal pointer.
*
* @return Opf_Form
*/
public function getNextSubform()
{
$this->_current = current($this->_items[$this->_placeholder]);
next($this->_items[$this->_placeholder]);
if (is_object($this->_current)) {
$this->_current->setView($this->_view);
$this->_current->invokeEvent('preInit');
$this->_current->onInit();
$this->_current->invokeEvent('postInit');
}
return $this->_current;
}
/**
* Returns the form stack head element. If the stack is empty,
* the method returns NULL.
*
* @internal
* @static
* @return Opf_Form
*/
public static function topOfStack()
{
if (self::$_stack === null) {
self::$_stack = new SplStack();
}
if (self::$_stack->count() == 0) {
return null;
}
return self::$_stack->top();
}
public function onInit()
{
$this->appendItem($item = new Opf_Repeater(new SingleForm('subform'), 10));
$item->setMinRequired(3);
parent::onInit();
}
/**
* Adds a form to the list of forms to make it available for the
* templates. You do not have to use this method manually, as the
* forms register themselves in templates automatically.
*
* @static
* @param Opf_Form $form The form to register.
* @throws Opf_ItemAlreadyExists_Exception
*/
public static function addForm(Opf_Form $form)
{
if (isset(self::$_forms[$form->getName()])) {
throw new Opf_Exception('Form ' . $form->getName() . ' already exist.');
}
self::$_forms[$form->getName()] = $form;
}