/**
* @return array
* @throws \Zend\Form\Exception\InvalidArgumentException
* @throws \Zend\Stdlib\Exception\InvalidArgumentException
* @throws \Zend\Form\Exception\DomainException
* @throws \Zend\Form\Exception\InvalidElementException
*/
public function extract()
{
if ($this->object instanceof Traversable) {
$this->object = ArrayUtils::iteratorToArray($this->object, false);
}
if (!is_array($this->object)) {
return array();
}
$values = array();
foreach ($this->object as $key => $value) {
// If a hydrator is provided, our work here is done
if ($this->hydrator) {
$values[$key] = $this->hydrator->extract($value);
continue;
}
// If the target element is a fieldset that can accept the provided value
// we should clone it, inject the value and extract the data
if ($this->targetElement instanceof FieldsetInterface) {
if (!$this->targetElement->allowObjectBinding($value)) {
continue;
}
$targetElement = clone $this->targetElement;
$targetElement->setObject($value);
$values[$key] = $targetElement->extract();
if (!$this->createNewObjects() && $this->has($key)) {
$this->get($key)->setObject($value);
}
continue;
}
// If the target element is a non-fieldset element, just use the value
if ($this->targetElement instanceof ElementInterface) {
$values[$key] = $value;
if (!$this->createNewObjects() && $this->has($key)) {
$this->get($key)->setValue($value);
}
continue;
}
}
return $values;
}
