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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/>.
/**
* Upgrade library code for the algebra question type.
*
* @package qtype
* @subpackage algebra
* @copyright 2010 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Class for converting attempt data for algebra questions when upgrading
* attempts to the new question engine.
*
* This class is used by the code in question/engine/upgrade/upgradelib.php.
*
* @copyright 2010 The Open University
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class qtype_algebra_qe2_attempt_updater extends question_qtype_attempt_updater {
public function right_answer() {
foreach ($this->question->options->answers as $ans) {
if ($ans->fraction > 0.999) {
return $ans->answer;
}
}
}
public function was_answered($state) {
return !empty($state->answer);
}
public function response_summary($state) {
if (!empty($state->answer)) {
return $state->answer;
} else {
return null;
}
}
public function set_first_step_data_elements($state, &$data) {
}
public function supply_missing_first_step_data(&$data) {
}
public function set_data_elements_for_step($state, &$data) {
if (!empty($state->answer)) {
$data['answer'] = $state->answer;
}
}
}
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