/**
* Sets a PersistentCollection instance.
*
* This method is intended to be used with the "set" or "setArray"
* strategies. The "setArray" strategy will ensure that the collection is
* set as a BSON array, which means the collection elements will be
* reindexed numerically before storage.
*
* @param PersistentCollection $coll
* @param array $options
*/
private function setCollection(PersistentCollection $coll, array $options)
{
list($propertyPath, $parent) = $this->getPathAndParent($coll);
$coll->initialize();
$mapping = $coll->getMapping();
$setData = $this->pb->prepareAssociatedCollectionValue($coll, CollectionHelper::usesSet($mapping['strategy']));
$query = array('$set' => array($propertyPath => $setData));
$this->executeQuery($parent, $query, $options);
}
