$PAGE->set_url($url);
$renderer = $PAGE->get_renderer('block_xp');
$filtermanager = $manager->get_filter_manager();
$userfilters = $filtermanager->get_user_filters();
// Saving the data.
if (!empty($_POST['save'])) {
require_sesskey();
// Saves all the filters.
$filterids = array();
$filters = isset($_POST['filters']) ? $_POST['filters'] : array();
foreach ($filters as $filterdata) {
$data = $filterdata;
$data['ruledata'] = json_encode($data['rule'], true);
unset($data['rule']);
$data['courseid'] = $manager->get_courseid();
if (!block_xp_filter::validate_data($data)) {
throw new moodle_exception('Data could not be validated');
}
$filter = block_xp_filter::load_from_data($data);
if ($filter->get_id() && !array_key_exists($filter->get_id(), $userfilters)) {
throw new moodle_exception('Invalid filter ID');
}
$filter->save();
$filterids[$filter->get_id()] = true;
}
// Check for filters to be deleted.
foreach ($userfilters as $filterid => $filter) {
if (!array_key_exists($filterid, $filterids)) {
$filter->delete();
}
}
