Moodle - Adding an element to the settings menu - php

Question

I'm trying to develop a plugin in Moodle. One of the requirements is to add an element to the Settings Menu, in which I was able to achieve with the help of this guide
https://docs.moodle.org/dev/Local_plugins#Adding_an_element_to_the_settings_menu
And this is my code in local/myplugin/lib.php
<?php
function local_myplugin_extends_settings_navigation($settingsnav, $context) {
// question_extend_settings_navigation
global $CFG, $PAGE;
// Only add this settings item on non-site course pages.
if (!$PAGE->course or $PAGE->course->id == 1) {
return;
}
// Only let users with the appropriate capability see this settings item.
/*if (!has_capability('moodle/backup:backupcourse', context_course::instance($PAGE->course->id))) {
return;
}*/
if ($settingnode = $settingsnav->find('courseadmin', navigation_node::TYPE_COURSE)) {
$strfoo = get_string('classrecord', 'local_myplugin');
$url = new moodle_url('/course/classrecord.php', array('id' => $PAGE->course->id));
$foonode = navigation_node::create(
$strfoo,
$url,
navigation_node::NODETYPE_LEAF,
'myplugin',
'myplugin',
new pix_icon('i/grades', $strfoo)
);
if ($PAGE->url->compare($url, URL_MATCH_BASE)) {
$foonode->make_active();
}
$settingnode->add_node($foonode);
}
}
?>
I allowed the students to see the element "Class Record" in the settings menu
My concern is that how can I hide/show Class Record I added?
Any ideas would be great!

Answer 1

If you want only certain users to see the link, then create an appropriate capability in local/myplugin/db/access.php, e.g. 'local/myplugin:viewclassrecord', defaulting to being assigned to the 'student' role. Then check for it in the function you have defined.
e.g.
if (!has_capability('local/myplugin:viewclassrecord', $context)) {
return;
}