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#6613 #6614 ensuring that only newly added items that weren't loaded are restored in the dirty state of the collection

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Marco Pivetta 2017-08-11 15:13:39 +02:00
parent 1fc7f81741
commit d44e6e1a9e
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GPG Key ID: 4167D3337FD9D629
1 changed files with 27 additions and 9 deletions
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36
lib/Doctrine/ORM/PersistentCollection.php
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@ -692,23 +692,41 @@ final class PersistentCollection extends AbstractLazyCollection implements Selec
protected function doInitialize()
{
// Has NEW objects added through add(). Remember them.
$newObjects = [];
$newlyAddedDirtyObjects = [];
if ($this->isDirty) {
$newObjects = $this->collection->toArray();
$newlyAddedDirtyObjects = $this->collection->toArray();
}
$this->collection->clear();
$this->em->getUnitOfWork()->loadCollection($this);
$this->takeSnapshot();
// Reattach NEW objects added through add(), if any.
if ($newObjects) {
foreach ($newObjects as $obj) {
$this->collection->add($obj);
}
$this->isDirty = true;
if ($newlyAddedDirtyObjects) {
$this->restoreNewObjectsInDirtyCollection($newlyAddedDirtyObjects);
}
}
/**
* @param object[] $newObjects
*
* @return void
*
* Note: the only reason why this entire looping/complexity is performed via `spl_object_hash`
* is because we want to prevent using `array_udiff()`, which is likely to cause very
* high overhead (complexity of O(n^2)). `array_diff_key()` performs the operation in
* core, which is faster than using a callback for comparisons
*/
private function restoreNewObjectsInDirtyCollection(array $newObjects)
{
$loadedObjects = $this->collection->toArray();
$newObjectsByOid = array_combine(array_map('spl_object_hash', $newObjects), $newObjects);
$loadedObjectsByOid = array_combine(array_map('spl_object_hash', $loadedObjects), $loadedObjects);
$newObjectsThatWereNotLoaded = array_diff_key($newObjectsByOid, $loadedObjectsByOid);
// Reattach NEW objects added through add(), if any.
array_walk($newObjectsThatWereNotLoaded, [$this->collection, 'add']);
$this->isDirty = true;
}
}