/**
* Recursively duplicate competencies from a tree, we start duplicating from parents to children to have a correct path.
* This method does not copy the related competencies.
*
* @param int $frameworkid - framework id
* @param competency[] $tree - array of competencies object
* @param int $oldparent - old parent id
* @param int $newparent - new parent id
* @return competency[] $matchids - List of old competencies ids matched with new competencies object.
*/
protected static function duplicate_competency_tree($frameworkid, $tree, $oldparent = 0, $newparent = 0)
{
$matchids = array();
foreach ($tree as $node) {
if ($node->competency->get_parentid() == $oldparent) {
$parentid = $node->competency->get_id();
// Create the competency.
$competency = new competency(0, $node->competency->to_record());
$competency->set_competencyframeworkid($frameworkid);
$competency->set_parentid($newparent);
$competency->set_path('');
$competency->set_id(0);
$competency->reset_rule();
$competency->create();
// Trigger the created event competency.
\core\event\competency_created::create_from_competency($competency)->trigger();
// Match the old id with the new one.
$matchids[$parentid] = $competency;
if (!empty($node->children)) {
// Duplicate children competency.
$childrenids = self::duplicate_competency_tree($frameworkid, $node->children, $parentid, $competency->get_id());
// Array_merge does not keep keys when merging so we use the + operator.
$matchids = $matchids + $childrenids;
}
}
}
return $matchids;
}
