public static function removeTag($document, $tagId, $updateCache = true)
{
try {
$c = new Criteria();
$c->add(TagPeer::TAG_ID, $tagId);
$tag = TagPeer::doSelectOne($c);
$tagRelation = TagrelationPeer::retrieveByPk($document->getId(), $tag->getId());
if ($tagRelation) {
$tagRelation->delete();
if ($updateCache) {
Tagrelation::updateTagRelationCache();
}
}
} catch (Exception $e) {
throw $e;
}
}
