public function bookmark($ConversationID, $UserID)
{
$Bookmark = false;
$Discussion = $this->getID($ConversationID, $UserID);
if (is_object($Discussion)) {
$Bookmark = $Discussion->Bookmark == '0' ? '1' : '0';
$this->SQL->update('UserConversation')->set('Bookmark', $Bookmark)->where('ConversationID', $ConversationID)->where('UserID', $UserID)->put();
$Bookmark == '1' ? true : false;
}
return $Bookmark;
}