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<?php
// This file is part of Moodle - http://moodle.org/
//
// Moodle is free software: you can redistribute it and/or modify
// it under the terms of the GNU General Public License as published by
// the Free Software Foundation, either version 3 of the License, or
// (at your option) any later version.
//
// Moodle is distributed in the hope that it will be useful,
// but WITHOUT ANY WARRANTY; without even the implied warranty of
// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
// GNU General Public License for more details.
//
// You should have received a copy of the GNU General Public License
// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
/**
* @package moodlecore
* @subpackage backup-helper
* @copyright 2010 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
require_once($CFG->dirroot.'/backup/util/xml/parser/processors/grouped_parser_processor.class.php');
/**
* helper implementation of grouped_parser_processor that will
* load all the contents of one users.xml file to the backup_ids table
* storing the whole structure there for later processing.
* Note: only "needed" users are loaded (must have userref record in backup_ids)
* Note: parentitemid will contain the user->contextid
* Note: althought included in backup, we don't restore user context ras/caps
* in same site they will be already there and it doesn't seem a good idea
* to make them "transportable" arround sites.
*
* TODO: Complete phpdocs
*/
class restore_users_parser_processor extends grouped_parser_processor {
protected $restoreid;
public function __construct($restoreid) {
$this->restoreid = $restoreid;
parent::__construct(array());
// Set the paths we are interested on, returning all them grouped under user
$this->add_path('/users/user', true);
$this->add_path('/users/user/custom_fields/custom_field');
$this->add_path('/users/user/tags/tag');
$this->add_path('/users/user/preferences/preference');
// As noted above, we skip user context ras and caps
// $this->add_path('/users/user/roles/role_overrides/override');
// $this->add_path('/users/user/roles/role_assignments/assignment');
}
protected function dispatch_chunk($data) {
// Received one user chunck, we are going to store it into backup_ids
// table, with name = user and parentid = contextid for later use
$itemname = 'user';
$itemid = $data['tags']['id'];
$parentitemid = $data['tags']['contextid'];
$info = $data['tags'];
// Only load it if needed (exist same userref itemid in table)
if (restore_dbops::get_backup_ids_record($this->restoreid, 'userref', $itemid)) {
restore_dbops::set_backup_ids_record($this->restoreid, $itemname, $itemid, 0, $parentitemid, $info);
}
}
protected function notify_path_start($path) {
// nothing to do
}
protected function notify_path_end($path) {
// nothing to do
}
/**
* Provide NULL decoding
*/
public function process_cdata($cdata) {
if ($cdata === '$@NULL@$') {
return null;
}
return $cdata;
}
}