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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_html
* @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
*/
/**
* Specialised restore task for the html block
* (requires encode_content_links in some configdata attrs)
*
* TODO: Finish phpdocs
*/
class restore_html_block_task extends restore_block_task {
protected function define_my_settings() {
}
protected function define_my_steps() {
}
public function get_fileareas() {
return array('content');
}
public function get_configdata_encoded_attributes() {
return array('text'); // We need to encode some attrs in configdata
}
static public function define_decode_contents() {
$contents = array();
$contents[] = new restore_html_block_decode_content('block_instances', 'configdata', 'block_instance');
return $contents;
}
static public function define_decode_rules() {
return array();
}
}
/**
* Specialised restore_decode_content provider that unserializes the configdata
* field, to serve the configdata->text content to the restore_decode_processor
* packaging it back to its serialized form after process
*/
class restore_html_block_decode_content extends restore_decode_content {
protected $configdata; // Temp storage for unserialized configdata
protected function get_iterator() {
global $DB;
// Build the SQL dynamically here
$fieldslist = 't.' . implode(', t.', $this->fields);
$sql = "SELECT t.id, $fieldslist
FROM {" . $this->tablename . "} t
JOIN {backup_ids_temp} b ON b.newitemid = t.id
WHERE b.backupid = ?
AND b.itemname = ?
AND t.blockname = 'html'";
$params = array($this->restoreid, $this->mapping);
return ($DB->get_recordset_sql($sql, $params));
}
protected function preprocess_field($field) {
$this->configdata = unserialize(base64_decode($field));
return isset($this->configdata->text) ? $this->configdata->text : '';
}
protected function postprocess_field($field) {
$this->configdata->text = $field;
return base64_encode(serialize($this->configdata));
}
}