/**
* Tests loading a class from /availability/classes.
*/
public function test_capability_checker()
{
global $CFG, $DB;
$this->resetAfterTest();
// Create a course with teacher and student.
$generator = $this->getDataGenerator();
$course = $generator->create_course();
$roleids = $DB->get_records_menu('role', null, '', 'shortname, id');
$teacher = $generator->create_user();
$student = $generator->create_user();
$generator->enrol_user($teacher->id, $course->id, $roleids['teacher']);
$generator->enrol_user($student->id, $course->id, $roleids['student']);
// Check a capability which they both have.
$context = context_course::instance($course->id);
$checker = new capability_checker($context);
$result = array_keys($checker->get_users_by_capability('mod/forum:replypost'));
sort($result);
$this->assertEquals(array($teacher->id, $student->id), $result);
// And one that only teachers have.
$result = array_keys($checker->get_users_by_capability('mod/forum:deleteanypost'));
$this->assertEquals(array($teacher->id), $result);
// Check the caching is working.
$before = $DB->perf_get_queries();
$result = array_keys($checker->get_users_by_capability('mod/forum:deleteanypost'));
$this->assertEquals(array($teacher->id), $result);
$this->assertEquals($before, $DB->perf_get_queries());
}
public function filter_user_list(array $users, $not, \core_availability\info $info, \core_availability\capability_checker $checker)
{
global $CFG, $DB;
// List users for this course who match the condition.
$groupingusers = $DB->get_records_sql("\n SELECT DISTINCT gm.userid\n FROM {groupings_groups} gg\n JOIN {groups_members} gm ON gm.groupid = gg.groupid\n WHERE gg.groupingid = ?", array($this->get_grouping_id($info)));
// List users who have access all groups.
$aagusers = $checker->get_users_by_capability('moodle/site:accessallgroups');
// Filter the user list.
$result = array();
foreach ($users as $id => $user) {
// Always include users with access all groups.
if (array_key_exists($id, $aagusers)) {
$result[$id] = $user;
continue;
}
// Other users are included or not based on grouping membership.
$allow = array_key_exists($id, $groupingusers);
if ($not) {
$allow = !$allow;
}
if ($allow) {
$result[$id] = $user;
}
}
return $result;
}
public function filter_user_list(array $users, $not, \core_availability\info $info, \core_availability\capability_checker $checker)
{
global $CFG, $DB;
// If the array is empty already, just return it.
if (!$users) {
return $users;
}
require_once $CFG->libdir . '/grouplib.php';
$course = $info->get_course();
// List users for this course who match the condition.
if ($this->groupid) {
$groupusers = groups_get_members($this->groupid, 'u.id', 'u.id ASC');
} else {
$groupusers = $DB->get_records_sql("\n SELECT DISTINCT gm.userid\n FROM {groups} g\n JOIN {groups_members} gm ON gm.groupid = g.id\n WHERE g.courseid = ?", array($course->id));
}
// List users who have access all groups.
$aagusers = $checker->get_users_by_capability('moodle/site:accessallgroups');
// Filter the user list.
$result = array();
foreach ($users as $id => $user) {
// Always include users with access all groups.
if (array_key_exists($id, $aagusers)) {
$result[$id] = $user;
continue;
}
// Other users are included or not based on group membership.
$allow = array_key_exists($id, $groupusers);
if ($not) {
$allow = !$allow;
}
if ($allow) {
$result[$id] = $user;
}
}
return $result;
}