/**
* extracts tags from the provided text and connects them to this question. If a tag is deleted it
* will be deleted from the relation
*
* @return void
* @author The Young Shepherd
**/
public function save(Doctrine_Connection $conn = null)
{
$currentTags = array();
foreach ($this->Tags as $tag) {
$currentTags[] = $tag->name;
}
$newTags = array_keys(Toolkit::extractTags($this->Best->question . ' ' . $this->Best->answer));
$deleteTags = array_diff($currentTags, $newTags);
foreach ($deleteTags as $name) {
foreach ($this->Tags as $index => $tag) {
if ($tag->name === $name) {
unset($this->Tags[$index]);
break;
// go to next name to delete
}
}
}
$addTags = array_diff($newTags, $currentTags);
foreach ($addTags as $name) {
if (!($tag = Doctrine::getTable('Tag')->findOneByName($name))) {
$tag = new Tag();
$tag->name = $name;
}
$this->Tags[] = $tag;
}
return parent::save($conn);
}
