199 lines
7.0 KiB
PHP
199 lines
7.0 KiB
PHP
<?php
|
|
// This file is part of the Studyplan plugin for Moodle
|
|
//
|
|
// 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 <https://www.gnu.org/licenses/>.
|
|
/**
|
|
* Class to find and cache which studyplans a teacher is teaching courses in
|
|
* @package local_treestudyplan
|
|
* @copyright 2023 P.M. Kuipers
|
|
* @license https://www.gnu.org/copyleft/gpl.html GNU GPL v3 or later
|
|
*/
|
|
|
|
namespace local_treestudyplan;
|
|
|
|
/**
|
|
* Class to find and cache which studyplans a teacher is teaching courses in
|
|
*/
|
|
class teachingfinder {
|
|
/**
|
|
* Table name used for caching teacher info
|
|
* @var string
|
|
*/
|
|
/** @var string */
|
|
const TABLE = "local_treestudyplan_teachers";
|
|
|
|
/**
|
|
* List all studyplans the current user is teaching
|
|
* (Updates the cache if no results are found the first time)
|
|
* @return studyplan[] List of studyplans
|
|
*/
|
|
public static function list_my_plans() {
|
|
global $USER, $DB;
|
|
$userid = $USER->id;
|
|
|
|
$records = $DB->get_records(self::TABLE, ['teacher_id' => $userid]);
|
|
if (count($records) == 0) {
|
|
// Initiate a search if the cache is empty.
|
|
self::update_teaching_cache($userid);
|
|
$records = $DB->get_records(self::TABLE, ['teacher_id' => $userid]);
|
|
}
|
|
$list = [];
|
|
foreach ($records as $r) {
|
|
$list[] = studyplan::find_by_id($r->studyplan_id);
|
|
}
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* Check if a user is teaching in a specific studyplan
|
|
* (Does not update the cache if results are 0)
|
|
* @param studyplan $plan Studyplan to check
|
|
* @return bool If teaching in this plan
|
|
*/
|
|
public static function is_teaching_studyplan(studyplan $plan, $userid) {
|
|
global $DB;
|
|
$count = $DB->count_records(self::TABLE, ['teacher_id' => $userid, "studyplan_id" => $plan->id()]);
|
|
return ($count > 0) ? true : false;
|
|
}
|
|
|
|
/**
|
|
* Check if a user is teaching courses in any studyplan
|
|
* (Does not update the cache if results are 0)
|
|
* @param studyplan $plan Studyplan to check
|
|
* @return bool If teaching in this plan
|
|
*/
|
|
public static function is_teaching($userid) {
|
|
global $DB;
|
|
$count = $DB->count_records(self::TABLE, ['teacher_id' => $userid]);
|
|
return ($count > 0) ? true : false;
|
|
}
|
|
|
|
/**
|
|
* Check if current user is teaching in a specific studyplan
|
|
* (Does not update the cache if results are 0)
|
|
* @param studyplan $plan Studyplan to check
|
|
* @return bool If teaching in this plan
|
|
*/
|
|
public static function am_teaching_studyplan(studyplan $plan) {
|
|
global $USER;
|
|
return self::is_teaching_studyplan($plan, $USER->id);
|
|
}
|
|
|
|
/**
|
|
* Check if current user is teaching courses in any studyplan
|
|
* (Does not update the cache if results are 0)
|
|
* @param studyplan $plan Studyplan to check
|
|
* @return bool If teaching in this plan
|
|
*/
|
|
public static function am_teaching() {
|
|
global $USER;
|
|
return self::is_teaching($USER->id);
|
|
}
|
|
|
|
/**
|
|
* Check if a user is teaching in a specific course
|
|
* @param int $courseid ID of the course
|
|
* @param int $userid ID of the user
|
|
* @return bool True if teaching in the course
|
|
*/
|
|
public static function is_teaching_course($courseid, $userid) {
|
|
$coursecontext = \context_course::instance($courseid);
|
|
return is_enrolled($coursecontext, $userid, 'mod/assign:grade');
|
|
}
|
|
|
|
/**
|
|
* Check if current user is teaching in a specific course
|
|
* @param int $courseid ID of the course
|
|
* @return bool True if teaching in the course
|
|
*/
|
|
public static function am_teaching_course($courseid) {
|
|
global $USER;
|
|
return self::is_teaching_course($courseid, $USER->id);
|
|
}
|
|
|
|
/**
|
|
* Find The active studyplan pages where the specified user is a teacher
|
|
* (Has the mod/assign::grade capability in one of the linked courses)
|
|
* @param int $userid The userid to check teacher rights for
|
|
* @return int[] List of page id's a teacher is teaching courses in
|
|
*/
|
|
public static function update_teaching_cache($userid) {
|
|
global $DB;
|
|
$list = [];
|
|
|
|
// First find all active study plans.
|
|
|
|
$sql = "SELECT p.id FROM {local_treestudyplan_page} p
|
|
WHERE startdate <= NOW() and enddate >= NOW()";
|
|
$pageids = $DB->get_fieldset_sql($sql, []);
|
|
|
|
// Then parse them to see if the user has the grading permission in any of them .
|
|
// (Which would make them a teacher for all intents and purposes).
|
|
|
|
foreach ($pageids as $pageid) {
|
|
$sql = "SELECT i.course_id FROM {local_treestudyplan_item} i
|
|
INNER JOIN {local_treestudyplan_line} l ON i.line_id = l.id
|
|
WHERE l.page_id = :page_id AND i.course_id IS NOT NULL";
|
|
$courseids = $DB->get_fieldset_sql($sql, ["page_id" => $pageid]);
|
|
|
|
$linked = false;
|
|
foreach ($courseids as $cid) {
|
|
if (self::is_teaching_course($cid, $userid)) {
|
|
$linked = true;
|
|
break; // No need to search further.
|
|
}
|
|
}
|
|
|
|
if ($linked) {
|
|
$list[] = $pageid;
|
|
}
|
|
|
|
}
|
|
|
|
// Now, clear the database of all records for this user.
|
|
$DB->delete_records(self::TABLE, ["teacher_id" => $userid]);
|
|
// And add new records for the found studyplans.
|
|
$now = time();
|
|
foreach ($list as $pageid) {
|
|
// Retrieve the studyplan id from the page.
|
|
$planid = $DB->get_field("local_treestudyplan_page", "studyplan_id", ["id" => $pageid]);
|
|
$DB->insert_record(self::TABLE, ["teacher_id" => $userid, "studyplan_id" => $planid, "update_time" => $now]);
|
|
}
|
|
|
|
return $list;
|
|
}
|
|
|
|
/**
|
|
* List of recognized teacher id's
|
|
* @return intp[]
|
|
*/
|
|
public static function list_teacher_ids() {
|
|
global $DB;
|
|
return $DB->get_fieldset_sql("SELECT DISTINCT teacher_id FROM {".self::TABLE."}");
|
|
}
|
|
|
|
/**
|
|
* Get the last time of update for the specified teacher
|
|
* @param int $teacherid User id of teacher
|
|
* @return int Unix timestamp
|
|
*/
|
|
public static function get_update_time($teacherid): int {
|
|
global $DB;
|
|
$r = $DB->get_field_sql("SELECT MIN(update_time) FROM {".self::TABLE."} WHERE teacher_id=:teacher_id",
|
|
["teacher_id" => $teacherid]);
|
|
return (int)($r->update_time);
|
|
}
|
|
|
|
}
|