/**
* Remove preferences for this filter
*
* @param string $name A specific preference to delete, if NULL all are deleted
* @return mr_html_filter_abstract
*/
public function preferences_delete($name = NULL)
{
if (is_null($name)) {
$names = array_keys($this->preferences_defaults());
} else {
$names = array($name);
}
foreach ($names as $name) {
$this->preferences->delete($name);
}
return $this;
}
/**
* Store sort and weight based on current settings
*
* @return void
*/
protected function save_sortorder()
{
// Store sorting information if necessary
if ($this->sort != $this->defaultsort) {
// Sort not the same as default, save
$this->preferences->set('sort', $this->sort);
} else {
// Sort same as default, remove
$this->preferences->delete('sort');
}
if ($this->order != $this->defaultorder) {
// Order not the same as default, save
$this->preferences->set('order', $this->order);
} else {
// Order same as default, remove
$this->preferences->delete('order');
}
}