/**
* Removes user from the subscriber list
*
* @global object
* @param int $userid
* @param int $forumid
* @param context_module|null $context Module context, may be omitted if not known or if called for the current module set in page.
*/
function hsuforum_unsubscribe($userid, $forumid, $context = null)
{
global $DB, $PAGE;
$DB->delete_records('hsuforum_digests', array('userid' => $userid, 'forum' => $forumid));
if ($forumsubscription = $DB->get_record('hsuforum_subscriptions', array('userid' => $userid, 'forum' => $forumid))) {
$DB->delete_records('hsuforum_subscriptions', array('id' => $forumsubscription->id));
if (!$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' => $forumsubscription->id, 'relateduserid' => $userid, 'other' => array('forumid' => $forumid));
$event = \mod_hsuforum\event\subscription_deleted::create($params);
$event->add_record_snapshot('hsuforum_subscriptions', $forumsubscription);
$event->trigger();
}
return true;
}
/**
* Test the subscription_deleted event.
*/
public function test_subscription_deleted()
{
// Setup test data.
$user = $this->getDataGenerator()->create_user();
$course = $this->getDataGenerator()->create_course();
$forum = $this->getDataGenerator()->create_module('hsuforum', array('course' => $course->id));
$user = $this->getDataGenerator()->create_user();
$context = context_module::instance($forum->cmid);
// Add a subscription.
$record = array();
$record['course'] = $course->id;
$record['forum'] = $forum->id;
$record['userid'] = $user->id;
$subscription = $this->getDataGenerator()->get_plugin_generator('mod_hsuforum')->create_subscription($record);
$params = array('context' => $context, 'objectid' => $subscription->id, 'other' => array('forumid' => $forum->id), 'relateduserid' => $user->id);
$event = \mod_hsuforum\event\subscription_deleted::create($params);
// Trigger and capturing the event.
$sink = $this->redirectEvents();
$event->trigger();
$events = $sink->get_events();
$this->assertCount(1, $events);
$event = reset($events);
// Checking that the event contains the expected values.
$this->assertInstanceOf('\\mod_hsuforum\\event\\subscription_deleted', $event);
$this->assertEquals($context, $event->get_context());
$expected = array($course->id, 'hsuforum', 'unsubscribe', "view.php?f={$forum->id}", $forum->id, $forum->cmid);
$this->assertEventLegacyLogData($expected, $event);
$url = new \moodle_url('/mod/hsuforum/subscribers.php', array('id' => $forum->id));
$this->assertEquals($url, $event->get_url());
$this->assertEventContextNotUsed($event);
$this->assertNotEmpty($event->get_name());
}