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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 block_rss_client
* @subpackage backup-moodle2
* @copyright 2003 onwards Eloy Lafuente (stronk7) {@link http://stronk7.com}
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
/**
* Define all the restore steps that wll be used by the restore_rss_client_block_task
*/
/**
* Define the complete rss_client structure for restore
*/
class restore_rss_client_block_structure_step extends restore_structure_step {
protected function define_structure() {
$paths = array();
$paths[] = new restore_path_element('block', '/block', true);
$paths[] = new restore_path_element('rss_client', '/block/rss_client');
$paths[] = new restore_path_element('feed', '/block/rss_client/feeds/feed');
return $paths;
}
public function process_block($data) {
global $DB;
$data = (object)$data;
$feedsarr = array(); // To accumulate feeds
// For any reason (non multiple, dupe detected...) block not restored, return
if (!$this->task->get_blockid()) {
return;
}
// Iterate over all the feed elements, creating them if needed
if (isset($data->rss_client['feeds']['feed'])) {
foreach ($data->rss_client['feeds']['feed'] as $feed) {
$feed = (object)$feed;
// Look if the same feed is available by url and (shared or userid)
$select = 'url = :url AND (shared = 1 OR userid = :userid)';
$params = array('url' => $feed->url, 'userid' => $this->task->get_userid());
// The feed already exists, use it
if ($feedid = $DB->get_field_select('block_rss_client', 'id', $select, $params, IGNORE_MULTIPLE)) {
$feedsarr[] = $feedid;
// The feed doesn't exist, create it
} else {
$feed->userid = $this->task->get_userid();
$feedid = $DB->insert_record('block_rss_client', $feed);
$feedsarr[] = $feedid;
}
}
}
// Adjust the serialized configdata->rssid to the created/mapped feeds
// Get the configdata
$configdata = $DB->get_field('block_instances', 'configdata', array('id' => $this->task->get_blockid()));
// Extract configdata
$config = unserialize(base64_decode($configdata));
if (empty($config)) {
$config = new stdClass();
}
// Set array of used rss feeds
$config->rssid = $feedsarr;
// Serialize back the configdata
$configdata = base64_encode(serialize($config));
// Set the configdata back
$DB->set_field('block_instances', 'configdata', $configdata, array('id' => $this->task->get_blockid()));
}
}