/**
* Unpin specific discussion
*
* @param void
* @return null
*
*/
function unpin()
{
if (!$this->request->isSubmitted()) {
$this->httpError(HTTP_ERR_BAD_REQUEST, null, true, $this->request->isAsyncCall());
}
// if
if (!$this->active_discussion->canChangePinedState($this->logged_user)) {
$this->httpError(HTTP_ERR_FORBIDDEN, null, true, $this->request->isAsyncCall());
}
// if
$this->active_discussion->setIsPinned(false);
$save = $this->active_discussion->save();
if ($save && !is_error($save)) {
flash_success('Discussion has been successfully unpinned');
$activity_log = new DiscussionUnpinnedActivityLog();
$activity_log->log($this->active_discussion, $this->logged_user);
} else {
flash_error('Failed to unpin selected discussion');
}
// if
$this->redirectToReferer($this->active_discussion->getViewUrl());
}
