/**
* After mode was saved we're building node path
*
* @param Tree $model
*/
public function saved(Tree $model)
{
if ($model->{$model->getTreeColumn('path')} === '') {
// If we just save() new node
$model->{$model->getTreeColumn('path')} = $model->getKey() . '/';
DB::table($model->getTable())->where($model->getKeyName(), '=', $model->getKey())->update(array($model->getTreeColumn('path') => $model->{$model->getTreeColumn('path')}));
}
}
/**
* Updating descendants nodes
*
* @param Tree $node Updated node
* @param Collection $oldDescendants Old descendants collection (just before modify parent)
*/
protected function updateDescendants(Tree $node, $oldDescendants)
{
$refs = [];
$refs[$node->getKey()] =& $node;
// Updated node
foreach ($oldDescendants as &$child) {
$refs[$child->getKey()] = $child;
$parent_id = $child->{$this->getTreeColumn('parent')};
if (!empty($refs[$parent_id])) {
if ($refs[$parent_id]->path != $refs[$child->getKey()]->removeLastNodeFromPath()) {
$refs[$child->getKey()]->level = $refs[$parent_id]->level + 1;
// New level
$refs[$child->getKey()]->path = $refs[$parent_id]->path . $child->getKey() . '/';
// New path
DB::table($this->getTable())->where($child->getKeyName(), '=', $child->getKey())->update([$this->getTreeColumn('level') => $refs[$child->getKey()]->level, $this->getTreeColumn('path') => $refs[$child->getKey()]->path]);
}
}
}
$this->fireModelEvent('updatedDescendants', false);
}
