/**
* Set level for descendents.
*
* @param Model $Model Model using this behavior.
* @param int|string $id Record ID
* @return void
*/
protected function _setChildrenLevel(Model $Model, $id)
{
$settings = $Model->Behaviors->Tree->settings[$Model->alias];
$primaryKey = $Model->primaryKey;
$depths = array($id => (int) $Model->data[$Model->alias][$settings['level']]);
$children = $Model->children($id, false, array($primaryKey, $settings['parent'], $settings['level']), $settings['left'], null, 1, -1);
foreach ($children as $node) {
$parentIdValue = $node[$Model->alias][$settings['parent']];
$depth = (int) $depths[$parentIdValue] + 1;
$depths[$node[$Model->alias][$primaryKey]] = $depth;
$Model->updateAll(array($Model->escapeField($settings['level']) => $depth), array($Model->escapeField($primaryKey) => $node[$Model->alias][$primaryKey]));
}
}
