/**
* {@inheritdoc}
*/
public function add($element)
{
$this->verifyTypeIntegrity($element);
if ($this->contains($element)) {
return false;
}
return parent::add($element);
}
/**
* @param mixed $element
*
* @return bool
*/
public function add($element)
{
$element->setGrouping($this->grouping);
return parent::add($element);
}
/**
* {@inheritdoc}
*/
public function add($element)
{
$this->throwIfNotForm($element);
return parent::add($element);
}
/**
* {@inheritdoc}
*/
public function set($key, $value)
{
if (null === $key) {
parent::add($value);
} else {
parent::set($key, $value);
}
$this->changed();
}
