// generate full and selected course lists
$availablecourses = array();
foreach ($SESSION->bulk_users as $user) {
$usercourses = get_my_courses($user);
foreach ($usercourses as $key => $junk) {
if (!in_array($key, $availablecourses)) {
$availablecourses[] = $key;
}
}
}
$unaccessible = array_diff($SESSION->bulk_courses, $availablecourses);
if (!empty($unaccessible)) {
$SESSION->bulk_courses = array();
}
$coursenames = gen_course_list($searchtext, array_diff($availablecourses, $SESSION->bulk_courses));
$selcoursenames = gen_course_list('', array_intersect($availablecourses, $SESSION->bulk_courses));
// print the page
if ($accept) {
if (empty($SESSION->bulk_courses)) {
redirect($return);
die;
}
admin_externalpage_print_header();
notice_yesno(get_string('confirmation', $pluginname, NULL, $langdir), 'iterator.php', $return, array('confirm' => '1'), NULL, 'post', 'get');
admin_externalpage_print_footer();
die;
}
admin_externalpage_print_header();
if (isset($SESSION->purge_progress)) {
notice_yesno(get_string('continue', $pluginname, NULL, $langdir), 'iterator.php', 'index.php', NULL, array('reset' => '1'), 'get', 'post');
} else {
$coursecnt++;
}
// if no courses pass the filter in that category, delete the current string
if ($coursecnt == 0) {
unset($courselist[$catcnt]);
} else {
$courselist[$catcnt] .= '</optgroup>';
$catcnt++;
}
}
// return the html code with categorized courses
return implode(' ', $courselist);
}
// generate full and selected course lists
$coursenames = gen_course_list($searchtext, $SESSION->bulk_courses, true);
$selcoursenames = gen_course_list('', $SESSION->bulk_courses);
// generate the list of groups names from the selected courses.
// groups with the same name appear only once
$groupnames = array();
foreach ($SESSION->bulk_courses as $course) {
$cgroups = groups_get_all_groups($course);
foreach ($cgroups as $cgroup) {
if (!in_array($cgroup->name, $groupnames)) {
$groupnames[] = $cgroup->name;
}
}
}
sort($groupnames);
// generate html code for the group select control
foreach ($groupnames as $key => $name) {
$groupnames[$key] = '<option value="' . s($name, true) . '" >' . s($name, true) . '</option>';
