/**
* Compare function that orders features.
* @param forumngfeature $a One feature
* @param forumngfeature $b Another feature
* @return int 1, -1, or 0 as per usual compare functions
*/
private static function compare($a, $b)
{
$ordera = $a->get_order();
$orderb = $b->get_order();
if ($ordera > $orderb) {
return 1;
}
if ($ordera < $orderb) {
return -1;
}
$classa = get_class($a);
$classb = get_class($b);
if ($classa > $classb) {
return 1;
}
if ($classb < $classa) {
return -1;
}
return 0;
}
/**
* Returns a new object of each available type.
* @return array Array of forumngfeature_discussion objects
*/
public static function get_all()
{
$all = forumngfeature::get_all();
$results = array();
foreach ($all as $feature) {
if (is_a($feature, 'forumngfeature_discussion_list') || is_a($feature, 'forumngfeature_discussion') && $feature->supports_discussion_list()) {
$results[] = $feature;
}
}
return $results;
}
