/**
* Removes the given link. Returns whether successfull. Displays
* an error on failure.
* @param Link $link The link to delete.
* @return boolean Whether the link was removed.
* @throws NotFoundException When no such link exists in the database.
* @throws PDOException When a database error occurs.
*/
public function deleteLink(Link $link)
{
$this->where($this->linkIdField, '=', $link->getId())->deleteOneOrFail();
}
