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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/>.
/**
* Defines restore_qtype_extrafields_plugin class
*
* @package core_backup
* @copyright 2012 Oleg Sychev, Volgograd State Technical University
* @author Valeriy Streltsov <vostreltsov@gmail.com>
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
global $CFG;
require_once($CFG->dirroot . '/question/engine/bank.php');
/**
* Class extending restore_qtype_plugin in order to use extra fields method
*
* See qtype_shortanswer for an example
*
* @copyright 2012 Oleg Sychev, Volgograd State Technical University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class restore_qtype_extrafields_plugin extends restore_qtype_plugin {
/**
* Question type class for a particular question type
* @var question_type
*/
protected $qtypeobj;
/**
* Constructor
*
* @param string $plugintype plugin type
* @param string $pluginname plugin name
* @param restore_step $step step
*/
public function __construct($plugintype, $pluginname, $step) {
parent::__construct($plugintype, $pluginname, $step);
$this->qtypeobj = question_bank::get_qtype($this->pluginname);
}
/**
* Returns the paths to be handled by the plugin at question level.
*/
protected function define_question_plugin_structure() {
$paths = array();
// This qtype uses question_answers, add them.
$this->add_question_question_answers($paths);
// Add own qtype stuff.
$elepath = $this->get_pathfor('/' . $this->qtypeobj->name());
$paths[] = new restore_path_element($this->qtypeobj->name(), $elepath);
$elepath = $this->get_pathfor('/answers/answer/extraanswerdata');
$paths[] = new restore_path_element('extraanswerdata', $elepath);
return $paths;
}
/**
* Processes the extra answer data
*
* @param array $data extra answer data
*/
public function process_extraanswerdata($data) {
global $DB;
$extra = $this->qtypeobj->extra_answer_fields();
$tablename = array_shift($extra);
$oldquestionid = $this->get_old_parentid('question');
$questioncreated = $this->get_mappingid('question_created', $oldquestionid) ? true : false;
if ($questioncreated) {
$data['answerid'] = $this->get_mappingid('question_answer', $data['id']);
$DB->insert_record($tablename, $data);
} else {
$DB->update_record($tablename, $data);
}
}
/**
* Process the qtype/... element.
*
* @param array $data question data
*/
public function really_process_extra_question_fields($data) {
global $DB;
$oldid = $data['id'];
// Detect if the question is created or mapped.
$oldquestionid = $this->get_old_parentid('question');
$newquestionid = $this->get_new_parentid('question');
$questioncreated = $this->get_mappingid('question_created', $oldquestionid) ? true : false;
// If the question has been created by restore, we need to create its qtype_... too.
if ($questioncreated) {
$extraquestionfields = $this->qtypeobj->extra_question_fields();
$tablename = array_shift($extraquestionfields);
// Adjust some columns.
$qtfield = $this->qtypeobj->questionid_column_name();
$data[$qtfield] = $newquestionid;
// Insert record.
$newitemid = $DB->insert_record($tablename, $data);
// Create mapping.
$this->set_mapping($tablename, $oldid, $newitemid);
}
}
}