public static function instance($dataformid)
{
if (!($instance = \mod_dataform_instance_store::instance($dataformid, 'notification_manager'))) {
$instance = new mod_dataform_notification_manager($dataformid);
\mod_dataform_instance_store::register($dataformid, 'notification_manager', $instance);
}
return $instance;
}
/**
* Returns and caches (for the current script) if not already, an entries manager for the specified Dataform.
*
* @param int Dataform id
* @return mod_dataform_entry_manager
*/
public static function instance($dataformid, $viewid)
{
global $DB;
if (!$dataformid) {
if (!$viewid or !($dataformid = $DB->get_field('dataform_views', 'dataid', array('id' => $viewid)))) {
throw new moodle_exception('invaliddataform', 'dataform', null, null, "Dataform id: {$dataformid}");
}
}
if (!($instance = \mod_dataform_instance_store::instance($dataformid, "entry_manager-{$viewid}"))) {
$instance = new mod_dataform_entry_manager($dataformid, $viewid);
\mod_dataform_instance_store::register($dataformid, "entry_manager-{$viewid}", $instance);
}
return $instance;
}
/**
* Deletes all this instance's structure and user data and resets its settings to defaults.
*
* @return bool Always true
*/
protected function reset()
{
// Must have manage templates capability.
require_capability('mod/dataform:managetemplates', $this->context);
// Reset settings.
$this->reset_settings();
// Delete all component items.
mod_dataform_field_manager::instance($this->id)->delete_fields();
mod_dataform_view_manager::instance($this->id)->delete_views();
mod_dataform_filter_manager::instance($this->id)->delete_filters();
mod_dataform_filter_manager::instance($this->id)->delete_advanced_filters();
mod_dataform_access_manager::instance($this->id)->delete_rules();
mod_dataform_notification_manager::instance($this->id)->delete_rules();
// Reset user data.
$this->reset_user_data();
// Delete remaining files (e.g. css, js).
$fs = get_file_storage();
$fs->delete_area_files($this->context->id, 'mod_dataform');
// Clean up gradebook.
mod_dataform_grade_manager::instance($this->id)->delete_grade_items();
// Refresh events.
dataform_refresh_events($this->course->id);
// Delete context content.
$this->context->delete_content();
// Update instance store.
if (\mod_dataform_instance_store::instance($this->id, 'dataform')) {
\mod_dataform_instance_store::register($this->id, 'dataform', $this);
}
return true;
}
