/**
* Subscribe current user to a given object
*
* @param void
* @return null
*/
function subscribe()
{
if (!$this->active_object->canSubscribe($this->logged_user)) {
$this->httpError(HTTP_ERR_FORBIDDEN, null, true, $this->request->isApiCall());
}
// if
$user_id = $this->request->getId('user_id');
if ($user_id) {
$user = Users::findById($user_id);
if (!instance_of($user, 'User')) {
$this->httpError(HTTP_ERR_NOT_FOUND);
// user ID provided, but no user found
}
// if
} else {
$user = $this->logged_user;
}
// if
if (isset($_GET['async']) && $_GET['async']) {
if ($this->request->isSubmitted()) {
db_begin_work();
$action = $this->active_object->subscribe($user);
if ($action && !is_error($action)) {
db_commit();
} else {
db_rollback();
}
// if
}
// if
require_once RESOURCES_MODULE_PATH . '/helpers/function.object_subscription.php';
print smarty_function_object_subscription(array('object' => $this->active_object, 'user' => $user, 'render_wrapper' => false), $this->smarty);
die;
} else {
$this->executeOnActiveObject('subscribe', array($user), lang('You are subscribed to ":name" :type now', array('type' => $this->active_object->getVerboseType(true), 'name' => $this->active_object->getName())), lang('Failed to subscribe you to ":name" :type', array('type' => $this->active_object->getVerboseType(true), 'name' => $this->active_object->getName())));
}
// if
}
