public function save()
{
$plugins = get_plugin_list(self::ENROL_PLUGIN_TYPE);
foreach ($plugins as $plugin => $plugindir) {
require_once elis::plugin_file(self::ENROL_PLUGIN_TYPE . '_' . $plugin, 'lib.php');
}
if (!empty($this->id)) {
// cache the database values, so we can know if the parent changed
$old = new userset($this->id);
$old->load();
}
// figure out the right depth for the cluster
if (empty($this->depth) || !empty($this->id)) {
if ($this->parent == 0) {
$this->depth = 1;
} else {
$this->depth = $this->parentset->depth + 1;
}
}
parent::save();
if (isset($old) && $this->parent != $old->parent) {
$cluster_context_instance = \local_elisprogram\context\userset::instance($this->id);
// find all subclusters and adjust their depth
$delta_depth = $this->depth - $old->depth;
$LIKE = $this->_db->sql_like('path', '?');
$sql = 'UPDATE {' . self::TABLE . "}\n SET depth = depth + ?\n WHERE id IN (SELECT instanceid\n FROM {context}\n WHERE contextlevel = ?\n AND {$LIKE})";
$this->_db->execute($sql, array($delta_depth, CONTEXT_ELIS_USERSET, "{$cluster_context_instance->path}/%"));
// Blank out the depth and path for associated records and child records in context table
$sql = "UPDATE {context}\n SET depth=0, path=NULL\n WHERE id=? OR {$LIKE}";
$this->_db->execute($sql, array($cluster_context_instance->id, "{$cluster_context_instance->path}/%"));
// Rebuild any blanked out records in context table
\local_eliscore\context\helper::build_all_paths(false, array(CONTEXT_ELIS_USERSET));
}
$plugins = get_plugin_list(self::ENROL_PLUGIN_TYPE);
foreach ($plugins as $plugin => $plugindir) {
call_user_func('userset_' . $plugin . '_update', $this);
}
if (isset($old)) {
//signal that the cluster was created
events_trigger('pm_userset_updated', $this);
} else {
events_trigger('pm_userset_created', $this);
}
}
