/**
* Unsubscribe specific user from a given object
*
* @param void
* @return null
*/
function unsubscribe_user()
{
if (!$this->active_object->canEdit($this->logged_user)) {
$this->httpError(HTTP_ERR_NOT_FOUND, null, true, $this->request->isApiCall());
}
// if
if ($this->request->isSubmitted()) {
$user = null;
$user_id = (int) $this->request->get('user_id');
if ($user_id) {
$user = Users::findById($user_id);
}
// if
if (!instance_of($user, 'User')) {
$this->httpError(HTTP_ERR_NOT_FOUND);
}
// if
$subscription = Subscriptions::findById(array('user_id' => $user->getId(), 'parent_id' => $this->active_object->getId()));
if (!instance_of($subscription, 'Subscription')) {
$this->httpError(HTTP_ERR_NOT_FOUND);
}
// if
$delete = $subscription->delete();
if ($delete && !is_error($delete)) {
flash_success(':user_name has been unsubscribed from :object_name :object_type', array('user_name' => $user->getDisplayName(), 'object_name' => $this->active_object->getName(), 'object_type' => $this->active_object->getVerboseType(true)));
} else {
flash_error('Failed to unsubscribe :user_name from :object_name :object_type', array('user_name' => $user->getDisplayName(), 'object_name' => $this->active_object->getName(), 'object_type' => $this->active_object->getVerboseType(true)));
}
// if
$this->redirectToReferer($this->active_object->getSubscriptionsUrl());
} else {
$this->httpError(HTTP_ERR_BAD_REQUEST);
}
// if
}
