635 lines
25 KiB
PHP
635 lines
25 KiB
PHP
<?php
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// This file is part of the Studyplan plugin for Moodle
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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 <https://www.gnu.org/licenses/>.
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/**
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* Class to process information about a course
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* @package local_treestudyplan
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* @copyright 2023 P.M. Kuipers
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* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
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*/
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namespace local_treestudyplan;
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defined('MOODLE_INTERNAL') || die();
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require_once($CFG->libdir.'/externallib.php');
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require_once($CFG->libdir.'/gradelib.php');
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require_once($CFG->dirroot.'/course/lib.php');
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use core_course\local\repository\caching_content_item_readonly_repository;
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use core_course\local\repository\content_item_readonly_repository;
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use grade_item;
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use grade_scale;
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use grade_outcome;
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/**
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* Class to process information about a course
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*/
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class courseinfo {
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/**
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* Table name used in this class
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* @var string */
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const TABLE = 'course';
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/** @var stdClass */
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private $course;
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/** @var \context */
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private $context;
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/** @var \context */
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private $coursecontext;
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/** @var studyitem */
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private $studyitem;
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/** @var array */
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private static $contentitems = null;
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/**
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* Cache of enrolled students in a particular course
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* @var array
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*/
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private static $coursestudents = [];
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/**
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* Return database identifier
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* @return int
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*/
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public function id() {
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return $this->course->id;
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}
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/**
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* Return short name
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* @return string
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*/
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public function shortname() {
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return $this->course->shortname;
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}
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/**
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* Return course record
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* @return \stdClass
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*/
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public function course() {
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return $this->course;
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}
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/**
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* Return course context
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* @return \context
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*/
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public function course_context() {
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return $this->coursecontext;
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}
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/**
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* Return course's category context
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* @return \context
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*/
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public function category_context() {
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return $this->context;
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}
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/**
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* Get content items (activity icons) from the repository
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* @return content_item[]
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*/
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protected function get_contentitems() {
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global $PAGE;
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if (empty(static::$contentitems)) {
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$PAGE->set_context(\context_system::instance());
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static::$contentitems = (new content_item_readonly_repository())->find_all();
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}
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return static::$contentitems;
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}
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/**
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* Check if current user is teacher in this course
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* @return book
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*/
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protected function am_teacher(): bool {
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global $USER;
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return is_enrolled($this->coursecontext, $USER, 'mod/assign:grade');
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}
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/**
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* Check if specified user can select gradables in this course
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* @param int $userid User id to check for . Leave empty to check current user
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*/
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protected function i_can_select_gradables($userid = -1) {
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global $USER, $DB;
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if ($userid <= 0) {
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$usr = $USER;
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} else {
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$usr = $DB->get_record('user', ['id' => $userid, 'deleted' => 0]);
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}
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return($usr && is_enrolled($this->coursecontext, $usr, 'local/treestudyplan:selectowngradables'));
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}
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/**
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* Get specific contentitem (activity icons) by name
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* @param mixed $name Name of content item
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* @return content_item|null
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*/
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public static function get_contentitem($name) {
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$contentitems = static::get_contentitems();
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for ($i = 0; $i < count($contentitems); $i++) {
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if ($contentitems[$i]->get_name() == $name) {
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return $contentitems[$i];
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}
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}
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return null;
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}
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/**
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* Construct courseinfo based on course id and
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* @param int $id Course id
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* @param studyitem|null $studyitem Studyitem linking this course (if applicable)
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*/
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public function __construct($id, ?studyitem $studyitem = null) {
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global $DB;
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$this->studyitem = $studyitem;
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$this->course = \get_course($id);
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$this->context = \context_coursecat::instance($this->course->category);
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$this->coursecontext = \context_course::instance($this->course->id);
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}
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/**
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* Check if a course with the given ID exists
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* @param int $id Course id
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* @return bool
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*/
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public static function exists($id) {
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global $DB;
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return is_numeric($id) && $DB->record_exists(self::TABLE, ['id' => $id]);
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}
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/**
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* Find course id from shortname
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* @param string $shortname Shortname of the course
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* @return int Course id
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*/
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public static function id_from_shortname($shortname) {
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global $DB;
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return $DB->get_field(self::TABLE, "id", ['shortname' => $shortname]);
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}
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/**
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* Determine course timing [future, present or past] based on a course date
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* @param stdClass $course Course database record
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* @return string 'future', 'present' or 'past'
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*/
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public static function coursetiming($course) {
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$now = time();
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if ($now > $course->startdate) {
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if ($course->enddate > 0 && $now > $course->enddate) {
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return "past";
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} else {
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return "present";
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}
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} else {
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return "future";
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}
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}
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/**
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* Determine course timing for this course [future, present or past]
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* @return string 'future', 'present' or 'past'
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*/
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public function timing() {
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return self::coursetiming($this->course);
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}
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/**
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* Determine proper display name for this course based on config settings, custom fields etc...
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* @return string Display name for the course
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*/
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public function displayname() {
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$displayfield = get_config("local_treestudyplan", "display_field");
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if ($displayfield == "idnumber") {
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$idnumber = trim(preg_replace("/\s+/u", " ", $this->course->idnumber));
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if (strlen($idnumber) > 0) {
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return $this->course->idnumber;
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}
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} else if ($displayfield == "fullname") {
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$fullname = trim(preg_replace("/\s+/u", " ", $this->course->fullname));
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if (strlen($fullname) > 0) {
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return $fullname;
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}
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} else if (strpos( $displayfield , "customfield_") === 0) {
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$fieldname = substr($displayfield, strlen("customfield_"));
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$handler = \core_customfield\handler::get_handler('core_course', 'course');
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$datas = $handler->get_instance_data($this->course->id);
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foreach ($datas as $data) {
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if ($data->get_field()->get('shortname') == $fieldname) {
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$value = trim(preg_replace("/\s+/u", " ", $data->get_value()));
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if (strlen($value) > 0) {
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return $value;
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}
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}
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}
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}
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// Fallback to shortname when the specified display field fails, since shortname is never empty.
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return $this->course->shortname;
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}
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/**
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* Webservice structure for basic info
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* @param int $value Webservice requirement constant
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*/
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public static function simple_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'linked course id'),
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"fullname" => new \external_value(PARAM_TEXT, 'linked course name'),
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"shortname" => new \external_value(PARAM_TEXT, 'linked course shortname'),
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"displayname" => new \external_value(PARAM_TEXT, 'linked course displayname'),
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"context" => contextinfo::structure(VALUE_OPTIONAL),
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], 'referenced course information', $value);
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}
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/**
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* Webservice model for basic info
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* @return array Webservice data model
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*/
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public function simple_model() {
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$contextinfo = new contextinfo($this->context);
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$info = [
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'id' => $this->course->id,
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'fullname' => $this->course->fullname,
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'shortname' => $this->course->shortname,
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'displayname' => $this->displayname(),
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'context' => $contextinfo->model(),
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];
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return $info;
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}
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/**
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* Webservice structure for editor info
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* @param int $value Webservice requirement constant
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*/
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public static function editor_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'linked course id'),
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"fullname" => new \external_value(PARAM_TEXT, 'linked course name'),
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"shortname" => new \external_value(PARAM_TEXT, 'linked course shortname'),
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"displayname" => new \external_value(PARAM_TEXT, 'linked course displayname'),
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"context" => contextinfo::structure(VALUE_OPTIONAL),
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"ctxid" => new \external_value(PARAM_INT, 'course context id name'),
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"grades" => new \external_multiple_structure(gradeinfo::editor_structure(),
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'grade list (legacy list)', VALUE_OPTIONAL),
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"completion" => corecompletioninfo::editor_structure(VALUE_OPTIONAL),
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"competency" => coursecompetencyinfo::editor_structure(VALUE_OPTIONAL),
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"timing" => new \external_value(PARAM_TEXT, '(past|present|future)'),
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"startdate" => new \external_value(PARAM_TEXT, 'Course start date'),
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"enddate" => new \external_value(PARAM_TEXT, 'Course end date'),
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"amteacher" => new \external_value(PARAM_BOOL, 'Requesting user is teacher in this course'),
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"canupdatecourse" => new \external_value(PARAM_BOOL, "If the current user can update this course"),
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"canselectgradables" => new \external_value(PARAM_BOOL, 'Requesting user can change selected gradables'),
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"numenrolled" => new \external_value(PARAM_INT, 'number of students from this studyplan enrolled in the course'),
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"tag" => new \external_value(PARAM_TEXT, 'Tag'),
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"extrafields" => self::extrafields_structure(),
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], 'referenced course information', $value);
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}
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/**
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* Webservice model for editor info
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* @return array Webservice data model
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*/
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public function editor_model() {
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$contextinfo = new contextinfo($this->context);
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$timing = $this->timing();
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if (isset($this->studyitem)) {
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$numenrolled = $this->count_enrolled_students($this->studyitem->studyline()->studyplan()->find_linked_userids());
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} else {
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$numenrolled = 0;
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}
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$info = [
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'id' => $this->course->id,
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'fullname' => $this->course->fullname,
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'shortname' => $this->course->shortname,
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'displayname' => $this->displayname(),
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'context' => $contextinfo->model(),
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'ctxid' => $this->coursecontext->id,
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'timing' => $timing,
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'startdate' => date("Y-m-d", $this->course->startdate),
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'enddate' => date("Y-m-d", $this->course->enddate),
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'amteacher' => $this->am_teacher(),
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'canupdatecourse' => \has_capability("moodle/course:update", $this->coursecontext),
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'canselectgradables' => $this->i_can_select_gradables(),
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'tag' => "Editormodel",
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'extrafields' => $this->extrafields_model(true),
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'grades' => [],
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'numenrolled' => $numenrolled,
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];
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if (isset($this->studyitem)) {
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$aggregator = $this->studyitem->studyline()->studyplan()->aggregator();
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if ($aggregator->use_manualactivityselection()) {
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$gradables = gradeinfo::list_course_gradables($this->course, $this->studyitem );
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foreach ($gradables as $gradable) {
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$info['grades'][] = $gradable->editor_model($this->studyitem);
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}
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}
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if ($aggregator->use_corecompletioninfo()) {
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$cc = new corecompletioninfo($this->course, $this->studyitem);
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$studentlist = $this->studyitem->studyline()->studyplan()->find_linked_userids();
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$info['completion'] = $cc->editor_model($studentlist);
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}
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if ($aggregator->use_coursecompetencies()) {
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$ci = new coursecompetencyinfo($this->course, $this->studyitem);
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$studentlist = $this->studyitem->studyline()->studyplan()->find_linked_userids();
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$info['competency'] = $ci->editor_model($studentlist);
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}
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}
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return $info;
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}
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/**
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* Webservice structure for userinfo
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* @param int $value Webservice requirement constant
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*/
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public static function user_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_single_structure([
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"id" => new \external_value(PARAM_INT, 'linked course id'),
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"fullname" => new \external_value(PARAM_TEXT, 'linked course name'),
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"shortname" => new \external_value(PARAM_TEXT, 'linked course shortname'),
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"displayname" => new \external_value(PARAM_TEXT, 'linked course displayname'),
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"context" => contextinfo::structure(VALUE_OPTIONAL),
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"ctxid" => new \external_value(PARAM_INT, 'course context id name'),
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"grades" => new \external_multiple_structure(gradeinfo::user_structure(), 'grade list (legacy list)', VALUE_OPTIONAL),
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"completion" => corecompletioninfo::user_structure(VALUE_OPTIONAL),
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"competency" => coursecompetencyinfo::user_structure(VALUE_OPTIONAL),
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"timing" => new \external_value(PARAM_TEXT, '(past|present|future)'),
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"startdate" => new \external_value(PARAM_TEXT, 'Course start date'),
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"enddate" => new \external_value(PARAM_TEXT, 'Course end date'),
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"enrolled" => new \external_value(PARAM_BOOL, 'True if student is enrolled as student in this course'),
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"extrafields" => self::extrafields_structure(),
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"showprogressbar" => new \external_value(PARAM_BOOL, "Whether to show the progress bar in the header"),
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], 'course information', $value);
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}
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/**
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* List all users enrolled in a course as student by userid
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* @param int $courseid Course id of the course to check
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* @return int[] Array if user ids
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*/
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public static function get_course_students($courseid): array {
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global $CFG;
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if (!array_key_exists($courseid, self::$coursestudents)) {
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$students = [];
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$context = \context_course::instance($courseid);
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foreach (explode(',', $CFG->gradebookroles) as $roleid) {
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$roleid = trim($roleid);
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$students = array_keys(get_role_users($roleid, $context, false, 'u.id', 'u.id ASC'));
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}
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self::$coursestudents[$courseid] = $students;
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}
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return self::$coursestudents[$courseid];
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}
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/**
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* Check if a user is enrolled as a student in this course
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* (Has a gradebook role)
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* @param int $userid The user Id to check
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*/
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public function is_enrolled_student($userid): bool {
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global $CFG;
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foreach (explode(',', $CFG->gradebookroles) as $roleid) {
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if (user_has_role_assignment($userid, $roleid, $this->coursecontext->id)) {
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return true;
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}
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}
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return false;
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}
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/**
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* List how many users from a list also enrolled as students
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* (Has a gradebook role)
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* @param int[] $userids The user Ids to check
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*/
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private function count_enrolled_students(array $userids) {
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$count = 0;
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foreach ($userids as $userid) {
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if ($this->is_enrolled_student($userid)) {
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$count++;
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}
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}
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return $count;
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}
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/**
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* Webservice model for user info
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* @param int $userid ID of user to check specific info for
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* @return array Webservice data model
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*/
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public function user_model($userid) {
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global $DB;
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$contextinfo = new contextinfo($this->context);
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$timing = $this->timing();
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$info = [
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'id' => $this->course->id,
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'fullname' => $this->course->fullname,
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'shortname' => $this->course->shortname,
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'displayname' => $this->displayname(),
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'context' => $contextinfo->model(),
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'ctxid' => $this->coursecontext->id,
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'timing' => $timing,
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'startdate' => date("Y-m-d", $this->course->startdate),
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'enddate' => date("Y-m-d", $this->course->enddate),
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'grades' => [],
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'enrolled' => $this->is_enrolled_student($userid),
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'extrafields' => $this->extrafields_model(),
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'showprogressbar' => get_config("local_treestudyplan", "courseprogressbar"),
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];
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if (isset($this->studyitem)) {
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$aggregator = $this->studyitem->studyline()->studyplan()->aggregator();
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if ($aggregator->use_manualactivityselection()) {
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$gradables = gradeinfo::list_studyitem_gradables($this->studyitem);
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foreach ($gradables as $gi) {
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$info['grades'][] = $gi->user_model($userid);
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}
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}
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if ($aggregator->use_corecompletioninfo()) {
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$cc = new corecompletioninfo($this->course, $this->studyitem);
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$info['completion'] = $cc->user_model($userid);
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}
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if ($aggregator->use_coursecompetencies()) {
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$ci = new coursecompetencyinfo($this->course, $this->studyitem);
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$info['competency'] = $ci->user_model($userid);
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}
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}
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return $info;
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}
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/**
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* Webservice structure for extra fields
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* @param int $value Webservice requirement constant
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*/
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public static function extrafields_structure($value = VALUE_REQUIRED): \external_description {
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return new \external_multiple_structure(new \external_single_structure([
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"title" => new \external_value(PARAM_RAW, 'title'),
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"value" => new \external_value(PARAM_RAW, 'value'),
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"position" => new \external_value(PARAM_TEXT, 'position'),
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"type" => new \external_value(PARAM_TEXT, 'value type'),
|
|
"fieldname" => new \external_value(PARAM_TEXT, 'field name'),
|
|
"checked" => new \external_value(PARAM_BOOL, 'checkbox value', VALUE_OPTIONAL),
|
|
"courseid" => new \external_value(PARAM_TEXT, 'course id number'),
|
|
], 'referenced course information'), $value);
|
|
}
|
|
|
|
/**
|
|
* Webservice model for basic info
|
|
* @param bool $includeteachervisible Set to true if in teacher mode, so fields set to visible as teacher will show
|
|
* @return array Webservice data model
|
|
*/
|
|
public function extrafields_model($includeteachervisible=false) {
|
|
$list = [];
|
|
for ($i = 1; $i <= 5; $i++) {
|
|
$field = get_config('local_treestudyplan', 'courseinfo'.$i.'_field');
|
|
if ($field) {
|
|
$title = self::extrafields_localize_title(get_config('local_treestudyplan', 'courseinfo'.$i.'_title'));
|
|
$pos = get_config('local_treestudyplan', 'courseinfo'.$i.'_position');
|
|
[$value, $type, $raw] = $this->extrafields_value($field, $includeteachervisible);
|
|
if ($type) {
|
|
$list[] = [
|
|
"title" => $title,
|
|
"value" => $value,
|
|
"position" => $pos,
|
|
"type" => $type,
|
|
"fieldname" => $field,
|
|
"courseid" => $this->course->id,
|
|
"checked" => ($type == "checkbox") ? ($raw ? true : false) : null,
|
|
];
|
|
}
|
|
}
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Localize title for extra field
|
|
* @param string $field
|
|
*/
|
|
protected static function extrafields_localize_title($field) {
|
|
$lang = trim(current_language());
|
|
$lines = explode("\n", $field);
|
|
$title = "";
|
|
$fallback = ""; // Fallback to first title.
|
|
foreach ($lines as $l) {
|
|
$parts = explode("|", $l, 2);
|
|
if (count($parts) > 0) {
|
|
// Set the first line as fallback.
|
|
if (empty($firsttitle) && !empty($parts[0])) {
|
|
$fallback = $parts[0];
|
|
}
|
|
if (count($parts) == 1 && empty($title)) {
|
|
// Set line without language as default if no localized line found.
|
|
$title = trim($parts[0]);
|
|
} else if (trim($parts[1]) == $lang) {
|
|
return trim($parts[0]);
|
|
}
|
|
}
|
|
}
|
|
|
|
// Return default title or fall back to first localizef title.
|
|
return (strlen($title) > 0) ? $title : $fallback;
|
|
}
|
|
|
|
/**
|
|
* Determine value and type of an extra field for this course
|
|
* @param string $fieldname The name if the extra field
|
|
* @param bool $includeteachervisible Set to true if in teacher mode, so fields set to visible as teacher will show
|
|
* @return array [value, type] of the field for this
|
|
*/
|
|
protected function extrafields_value($fieldname, $includeteachervisible=false) {
|
|
global $PAGE;
|
|
if ($fieldname == "description") {
|
|
// Process embedded files.
|
|
$value = \file_rewrite_pluginfile_urls(
|
|
// The description content.
|
|
$this->course()->summary,
|
|
// The pluginfile URL which will serve the request.
|
|
'pluginfile.php',
|
|
// The combination of contextid / component / filearea / itemid.
|
|
// Form the virtual bucket that file are stored in.
|
|
$this->coursecontext->id, // System instance is always used for this.
|
|
'course',
|
|
'summary',
|
|
''
|
|
);
|
|
return [$value, "textarea", $this->course()->summary];
|
|
} else if ($fieldname == "idnumber") {
|
|
$idnumber = trim(preg_replace("/\s+/u", " ", $this->course->idnumber));
|
|
return [$idnumber, "text", $this->course->idnumber];
|
|
} else if ($fieldname == "contacts") {
|
|
$cle = new \core_course_list_element($this->course());
|
|
$contacts = $cle->get_course_contacts();
|
|
$value = "";
|
|
foreach ($contacts as $uid => $contact) {
|
|
if (strlen($value) > 0) {
|
|
$value .= ", ";
|
|
}
|
|
$value .= $contact["username"];
|
|
}
|
|
if (empty($value)) {
|
|
$value = get_string("none");
|
|
}
|
|
return [$value, "text", $value];
|
|
} else if (strpos( $fieldname , "customfield_") === 0) {
|
|
$fieldshortname = substr($fieldname, strlen("customfield_"));
|
|
|
|
$handler = \core_customfield\handler::get_handler('core_course', 'course');
|
|
$datas = $handler->get_instance_data($this->course->id);
|
|
foreach ($datas as $data) {
|
|
$field = $data->get_field();
|
|
$fshortname = $field->get('shortname');
|
|
if ($fshortname == $fieldshortname) {
|
|
$visibility = $field->get_configdata_property("visibility");
|
|
$raw = $data->get_value();
|
|
$type = $field->get('type');
|
|
|
|
// Only show if visibility is "Everyone" or ("Teachers" and in teacher view ).
|
|
if ($visibility > 0 && ($visibility == 2 || $includeteachervisible)) {
|
|
if ($type == "date") {
|
|
// Date should be converted to YYYY-MM-DD so the javascript can properly format it.
|
|
if ($raw == 0) {
|
|
$value = "";
|
|
} else {
|
|
// Convert to YYYY-MM-DD format.
|
|
$value = date("Y-m-d", $raw);
|
|
}
|
|
} else {
|
|
if (empty($PAGE->context)) {
|
|
$PAGE->set_context(\context_system::instance());
|
|
}
|
|
// Everything else can just use the export value.
|
|
$value = $data->export_value();
|
|
}
|
|
|
|
return [$value, $type, $raw];
|
|
}
|
|
}
|
|
}
|
|
}
|
|
// Fallback to empty if finding a match fails.
|
|
return [null, null, null];
|
|
}
|
|
}
|