/**
* Tags saving logic, runned after the object himself has been saved
*
* @param Doctrine_Event $event
*/
public function postSave(Doctrine_Event $event)
{
$object = $event->getInvoker();
$added_tags = Taggable::get_tags($object);
$removed_tags = array_keys(Taggable::get_removed_tags($object));
// save new tags
foreach ($added_tags as $tagname) {
$tag = Doctrine_Core::getTable('Tag')->findOrCreateByTagName($tagname);
$tag->save();
$tagging = new Tagging();
$tagging->tag_id = $tag->id;
$tagging->taggable_id = $object->id;
$tagging->taggable_model = get_class($object);
$tagging->save();
$tag->free();
$tagging->free();
unset($tag, $tagging);
}
if ($removed_tags) {
$q = Doctrine_Query::create()->select('t.id')->from('Tag t INDEXBY t.id')->whereIn('t.name', $removed_tags);
$removed_tag_ids = array_keys($q->execute(array(), Doctrine_Core::HYDRATE_ARRAY));
Doctrine_Core::getTable('Tagging')->createQuery()->delete()->whereIn('tag_id', $removed_tag_ids)->addWhere('taggable_id = ?', $object->id)->addWhere('taggable_model = ?', get_class($object))->execute();
}
$tags = Taggable::get_tags($object) + $object->getSavedTags();
Taggable::set_saved_tags($object, $tags);
Taggable::clear_tags($object);
Taggable::clear_removed_tags($object);
}
