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<?php
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// This file is part of Moodle - http://moodle.org/
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//
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// Moodle is free software: you can redistribute it and/or modify
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// it under the terms of the GNU General Public License as published by
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// the Free Software Foundation, either version 3 of the License, or
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// (at your option) any later version.
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//
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// Moodle is distributed in the hope that it will be useful,
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// but WITHOUT ANY WARRANTY; without even the implied warranty of
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// MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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// GNU General Public License for more details.
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//
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// You should have received a copy of the GNU General Public License
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// along with Moodle. If not, see <http://www.gnu.org/licenses/>.
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/**
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* Multiclass test indicator.
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*
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* @package core_analytics
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* @copyright 2019 Vlad Apetrei
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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defined('MOODLE_INTERNAL') || die();
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/**
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* Multiclass test indicator.
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*
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* @package core_analytics
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* @copyright 2019 Vlad Apetrei
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* @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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class test_indicator_multiclass extends \core_analytics\local\indicator\linear {
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/**
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* Returns a lang_string object representing the name for the indicator.
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*
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* Used as column identificator.
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*
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* If there is a corresponding '_help' string this will be shown as well.
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*
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* @return \lang_string
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*/
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public static function get_name(): \lang_string {
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// Using a string that exists and contains a corresponding '_help' string.
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return new \lang_string('allowstealthmodules');
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}
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/**
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* include_averages
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*
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* @return bool
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*/
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protected static function include_averages() {
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return false;
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}
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/**
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* required_sample_data
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*
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* @return string[]
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*/
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public static function required_sample_data() {
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return array('course');
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}
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/**
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* calculate_sample
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*
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* @param int $sampleid
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* @param string $samplesorigin
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* @param int $starttime
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* @param int $endtime
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* @return float
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*/
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protected function calculate_sample($sampleid, $samplesorigin, $starttime, $endtime) {
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$course = $this->retrieve('course', $sampleid);
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$firstchar = substr($course->fullname, 0, 1);
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if ($firstchar === 'a') {
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return 1;
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} else if ($firstchar === 'b') {
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return -1;
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} else if ($firstchar === 'c') {
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return 1;
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} else {
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return self::MAX_VALUE;
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}
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}
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}
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