/**
* Merges the $tag into the $targetTag.
*
* @throws \eZ\Publish\API\Repository\Exceptions\NotFoundException If either of specified tags is not found
* @throws \eZ\Publish\API\Repository\Exceptions\UnauthorizedException If the current user is not allowed to merge tags
* @throws \eZ\Publish\API\Repository\Exceptions\InvalidArgumentException If either one of the tags is a synonym
* If the target tag is a sub tag of the given tag
*
* @param \Netgen\TagsBundle\API\Repository\Values\Tags\Tag $tag
* @param \Netgen\TagsBundle\API\Repository\Values\Tags\Tag $targetTag
*/
public function mergeTags(Tag $tag, Tag $targetTag)
{
if ($this->hasAccess('tags', 'merge') !== true) {
throw new UnauthorizedException('tags', 'merge');
}
$spiTagInfo = $this->tagsHandler->loadTagInfo($tag->id);
$spiTargetTagInfo = $this->tagsHandler->loadTagInfo($targetTag->id);
if ($spiTagInfo->mainTagId > 0) {
throw new InvalidArgumentException('tag', 'Source tag is a synonym');
}
if ($spiTargetTagInfo->mainTagId > 0) {
throw new InvalidArgumentException('targetTag', 'Target tag is a synonym');
}
if (strpos($spiTargetTagInfo->pathString, $spiTagInfo->pathString) === 0) {
throw new InvalidArgumentException('targetParentTag', 'Target tag is a sub tag of the given tag');
}
$this->repository->beginTransaction();
try {
foreach ($this->tagsHandler->loadChildren($spiTagInfo->id) as $child) {
$this->tagsHandler->moveSubtree($child->id, $spiTargetTagInfo->id);
}
$this->tagsHandler->merge($spiTagInfo->id, $spiTargetTagInfo->id);
$this->repository->commit();
} catch (Exception $e) {
$this->repository->rollback();
throw $e;
}
}
