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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/>.
/**
* Contains class mod_h5pactivity\output\result\matching
*
* @package mod_h5pactivity
* @copyright 2020 Ferran Recio
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
namespace mod_h5pactivity\output\result;
defined('MOODLE_INTERNAL') || die();
use mod_h5pactivity\output\result;
use renderer_base;
/**
* Class to display H5P matching result.
*
* @copyright 2020 Ferran Recio
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class matching extends result {
/**
* Return the options data structure.
*
* @return array of options
*/
protected function export_options(): ?array {
// Suppose H5P choices have only list of valid answers.
$correctpattern = reset($this->correctpattern);
$additionals = $this->additionals;
// Get sources (options).
if (isset($additionals->source)) {
$options = $this->get_descriptions($additionals->source);
} else {
$options = [];
}
// Get targets.
if (isset($additionals->target)) {
$targets = $this->get_descriptions($additionals->target);
} else {
$targets = [];
}
// Correct answers.
foreach ($correctpattern as $pattern) {
if (!is_array($pattern) || count($pattern) != 2) {
continue;
}
// One pattern must be from options and the other from targets.
if (isset($options[$pattern[0]]) && isset($targets[$pattern[1]])) {
$option = $options[$pattern[0]];
$target = $targets[$pattern[1]];
} else if (isset($targets[$pattern[0]]) && isset($options[$pattern[1]])) {
$option = $options[$pattern[1]];
$target = $targets[$pattern[0]];
} else {
$option = null;
}
if ($option) {
$option->correctanswer = $this->get_answer(parent::TEXT, $target->description);
$option->correctanswerid = $target->id;
}
}
// User responses.
foreach ($this->response as $response) {
if (!is_array($response) || count($response) != 2) {
continue;
}
// One repsonse must be from options and the other from targets.
if (isset($options[$response[0]]) && isset($targets[$response[1]])) {
$option = $options[$response[0]];
$target = $targets[$response[1]];
$answer = $response[1];
} else if (isset($targets[$response[0]]) && isset($options[$response[1]])) {
$option = $options[$response[1]];
$target = $targets[$response[0]];
$answer = $response[0];
} else {
$option = null;
}
if ($option) {
if (isset($option->correctanswerid) && $option->correctanswerid == $answer) {
$state = parent::CORRECT;
} else {
$state = parent::INCORRECT;
}
$option->useranswer = $this->get_answer($state, $target->description);
}
}
return $options;
}
/**
* Return a label for result user options/choices
*
* Specific result types can override this method to customize
* the result options table header.
*
* @return string to use in options table
*/
protected function get_optionslabel(): string {
return get_string('result_matching', 'mod_h5pactivity');
}
}