public function discsubscribers_action()
{
global $OUTPUT, $USER, $DB, $COURSE, $PAGE;
require_once dirname(dirname(__DIR__)) . '/repository/discussion.php';
require_once dirname(dirname(__DIR__)) . '/lib/userselector/discussion/existing.php';
require_once dirname(dirname(__DIR__)) . '/lib/userselector/discussion/potential.php';
$discussionid = required_param('discussionid', PARAM_INT);
$edit = optional_param('edit', -1, PARAM_BOOL);
// Turn editing on and off.
$url = $PAGE->url;
$url->param('discussionid', $discussionid);
if ($edit !== 0) {
$url->param('edit', $edit);
}
$PAGE->set_url($url);
$discussion = $DB->get_record('hsuforum_discussions', array('id' => $discussionid), '*', MUST_EXIST);
$forum = $PAGE->activityrecord;
$course = $COURSE;
$cm = $PAGE->cm;
$context = $PAGE->context;
$repo = new \hsuforum_repository_discussion();
if (hsuforum_is_forcesubscribed($forum)) {
throw new coding_exception('Cannot manage discussion subscriptions when subscription is forced');
}
$currentgroup = groups_get_activity_group($cm);
$options = array('forum' => $forum, 'discussion' => $discussion, 'currentgroup' => $currentgroup, 'context' => $context);
$existingselector = new \hsuforum_userselector_discussion_existing('existingsubscribers', $options);
$subscriberselector = new \hsuforum_userselector_discussion_potential('potentialsubscribers', $options);
if (data_submitted()) {
require_sesskey();
$subscribe = (bool) optional_param('subscribe', false, PARAM_RAW);
$unsubscribe = (bool) optional_param('unsubscribe', false, PARAM_RAW);
/** It has to be one or the other, not both or neither */
if (!($subscribe xor $unsubscribe)) {
print_error('invalidaction');
}
if ($subscribe) {
$users = $subscriberselector->get_selected_users();
foreach ($users as $user) {
$repo->subscribe($discussion->id, $user->id);
}
} else {
if ($unsubscribe) {
$users = $existingselector->get_selected_users();
foreach ($users as $user) {
$repo->unsubscribe($discussion->id, $user->id);
}
}
}
$subscriberselector->invalidate_selected_users();
$existingselector->invalidate_selected_users();
redirect($PAGE->url);
}
$strsubscribers = get_string('discussionsubscribers', 'hsuforum');
// This works but it doesn't make a good navbar, would have to change the settings menu.
// $PAGE->settingsnav->find('discsubscribers', navigation_node::TYPE_SETTING)->make_active();
$PAGE->navbar->add(shorten_text(format_string($discussion->name)), new moodle_url('/mod/hsuforum/discuss.php', array('d' => $discussion->id)));
$PAGE->navbar->add($strsubscribers);
$PAGE->set_title($strsubscribers);
$PAGE->set_heading($COURSE->fullname);
if (has_capability('mod/hsuforum:managesubscriptions', $context)) {
if ($edit != -1) {
$USER->subscriptionsediting = $edit;
}
if (!empty($USER->subscriptionsediting)) {
$string = get_string('turneditingoff');
$edit = "off";
} else {
$string = get_string('turneditingon');
$edit = "on";
}
$url = $PAGE->url;
$url->param('edit', $edit);
$PAGE->set_button($OUTPUT->single_button($url, $string, 'get'));
} else {
unset($USER->subscriptionsediting);
}
$output = $OUTPUT->heading($strsubscribers);
if (empty($USER->subscriptionsediting)) {
$output .= $this->renderer->subscriber_overview($existingselector->get_repo()->get_subscribed_users($forum, $discussion, $context, $currentgroup), $discussion->name, $forum, $course);
} else {
$output .= $this->renderer->subscriber_selection_form($existingselector, $subscriberselector);
}
return $output;
}
/**
* Adds user to the subscriber list
*
* @param int $userid
* @param int $forumid
* @param context_module|null $context Module context, may be omitted if not known or if called for the current module set in page.
*/
function hsuforum_subscribe($userid, $forumid, $context = null)
{
global $DB, $PAGE;
require_once __DIR__ . '/repository/discussion.php';
$repo = new hsuforum_repository_discussion();
$repo->unsubscribe_all($forumid, $userid);
if ($DB->record_exists("hsuforum_subscriptions", array("userid" => $userid, "forum" => $forumid))) {
return true;
}
$sub = new stdClass();
$sub->userid = $userid;
$sub->forum = $forumid;
$result = $DB->insert_record("hsuforum_subscriptions", $sub);
if (!$context) {
// Find out forum context. First try to take current page context to save on DB query.
if ($PAGE->cm && $PAGE->cm->modname === 'hsuforum' && $PAGE->cm->instance == $forumid && $PAGE->context->contextlevel == CONTEXT_MODULE && $PAGE->context->instanceid == $PAGE->cm->id) {
$context = $PAGE->context;
} else {
$cm = get_coursemodule_from_instance('hsuforum', $forumid);
$context = context_module::instance($cm->id);
}
}
$params = array('context' => $context, 'objectid' => $result, 'relateduserid' => $userid, 'other' => array('forumid' => $forumid));
$event = \mod_hsuforum\event\subscription_created::create($params);
$event->trigger();
return $result;
}
