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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/>.
/**
* Multiclass test indicator.
*
* @package core_analytics
* @copyright 2019 Vlad Apetrei
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
defined('MOODLE_INTERNAL') || die();
/**
* Multiclass test indicator.
*
* @package core_analytics
* @copyright 2019 Vlad Apetrei
* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
*/
class test_indicator_multiclass extends \core_analytics\local\indicator\linear {
/**
* Returns a lang_string object representing the name for the indicator.
*
* Used as column identificator.
*
* If there is a corresponding '_help' string this will be shown as well.
*
* @return \lang_string
*/
public static function get_name() : \lang_string {
// Using a string that exists and contains a corresponding '_help' string.
return new \lang_string('allowstealthmodules');
}
/**
* include_averages
*
* @return bool
*/
protected static function include_averages() {
return false;
}
/**
* required_sample_data
*
* @return string[]
*/
public static function required_sample_data() {
return array('course');
}
/**
* calculate_sample
*
* @param int $sampleid
* @param string $samplesorigin
* @param int $starttime
* @param int $endtime
* @return float
*/
protected function calculate_sample($sampleid, $samplesorigin, $starttime, $endtime) {
$course = $this->retrieve('course', $sampleid);
$firstchar = substr($course->fullname, 0, 1);
if ($firstchar === 'a') {
return 1;
} else if ($firstchar === 'b') {
return -1;
} else if ($firstchar === 'c') {
return 1;
} else {
return self::MAX_VALUE;
}
}
}