/**
* @param RepeatingFieldCollection $collection
*
* @return RepeatingFieldCollection[]
*/
public function update(RepeatingFieldCollection $collection)
{
$updated = [];
// First give priority to already existing entities
foreach ($collection->flatten() as $entity) {
$master = $this->getOriginal($entity);
$master->setValue($entity->getValue());
$master->setFieldtype($entity->getFieldtype());
$master->handleStorage($this->getFieldType($entity->getFieldname()));
$updated[] = $master;
}
$deleted = [];
foreach ($this->flatten() as $old) {
if (!in_array($old, $updated)) {
$deleted[] = $old;
}
}
// Clear the collection so that we re-add only the updated elements
$this->clear();
foreach ($updated as $new) {
$this->add($new);
}
return $deleted;
}
