/**
* Get a list of the user IDs of every student user.
*
* @return array a list of all student user IDs
*
* @since 0.5
*/
public static function get_student_user_ids()
{
$students = array();
// If in multisite mode, populate the list with all users who are the
// sole administrator on a non-root blog. If running in single-site
// mode, add any users who can edit posts but who are not admins.
if (ClassBlogs_Utils::is_multisite()) {
foreach (ClassBlogs_Utils::get_non_root_blog_ids() as $blog_id) {
$admins = get_users('blog_id=' . $blog_id . '&role=administrator');
if (count($admins) == 1) {
$admin = $admins[0];
if (!in_array($admin->ID, $students)) {
$students[] = $admin->ID;
}
}
}
} else {
foreach (get_users() as $user) {
if (!ClassBlogs_NXTClass::user_can($user->ID, 'administrator') && ClassBlogs_NXTClass::user_can($user->ID, 'edit_posts')) {
$students[] = $user->ID;
}
}
}
return $students;
}
