Current Path : C:/xampp/htdocs/moodle/course/classes/analytics/target/ |
Current File : C:/xampp/htdocs/moodle/course/classes/analytics/target/course_competencies.php |
<?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/>. /** * Course competencies achievement target. * * @package core_course * @copyright 2019 Victor Deniz <victor@moodle.com> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ namespace core_course\analytics\target; defined('MOODLE_INTERNAL') || die(); /** * Course competencies achievement target. * * @package core_course * @copyright 2019 Victor Deniz <victor@moodle.com> * @license http://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later */ class course_competencies extends course_enrolments { /** * Number of competencies assigned per course. * @var int[] */ protected $coursecompetencies = array(); /** * Count the competencies in a course. * * Save the value in $coursecompetencies array to prevent new accesses to the database. * * @param int $courseid The course id. * @return int Number of competencies assigned to the course. */ protected function get_num_competencies_in_course ($courseid) { if (!isset($this->coursecompetencies[$courseid])) { $ccs = \core_competency\api::count_competencies_in_course($courseid); // Save the number of competencies per course to avoid another database access in calculate_sample(). $this->coursecompetencies[$courseid] = $ccs; } else { $ccs = $this->coursecompetencies[$courseid]; } return $ccs; } /** * Returns the name. * * If there is a corresponding '_help' string this will be shown as well. * * @return \lang_string */ public static function get_name() : \lang_string { return new \lang_string('target:coursecompetencies', 'course'); } /** * Returns descriptions for each of the values the target calculation can return. * * @return string[] */ protected static function classes_description() { return array( get_string('targetlabelstudentcompetenciesno', 'course'), get_string('targetlabelstudentcompetenciesyes', 'course'), ); } /** * Discards courses that are not yet ready to be used for training or prediction. * * @param \core_analytics\analysable $course * @param bool $fortraining * @return true|string */ public function is_valid_analysable(\core_analytics\analysable $course, $fortraining = true) { $isvalid = parent::is_valid_analysable($course, $fortraining); if (is_string($isvalid)) { return $isvalid; } $ccs = $this->get_num_competencies_in_course($course->get_id()); if (!$ccs) { return get_string('nocompetenciesincourse', 'tool_lp'); } return true; } /** * To have the proficiency or not in each of the competencies assigned to the course sets the target value. * * @param int $sampleid * @param \core_analytics\analysable $course * @param int $starttime * @param int $endtime * @return float|null 0 -> competencies achieved, 1 -> competencies not achieved */ protected function calculate_sample($sampleid, \core_analytics\analysable $course, $starttime = false, $endtime = false) { if (!$this->enrolment_active_during_analysis_time($sampleid, $starttime, $endtime)) { // We should not use this sample as the analysis results could be misleading. return null; } $userenrol = $this->retrieve('user_enrolments', $sampleid); $key = $course->get_id(); // Number of competencies in the course. $ccs = $this->get_num_competencies_in_course($key); // Number of proficient competencies in the same course for the user. $ucs = \core_competency\api::count_proficient_competencies_in_course_for_user($key, $userenrol->userid); // If they are the equals, the user achieved all the competencies assigned to the course. if ($ccs == $ucs) { return 0; } return 1; } }