public function update(Todo $todo){
$query = $this->_db->prepare(' UPDATE t_todo SET
todo=:todo, status=:status, priority=:priority, updated=:updated, updatedBy=:updatedBy
WHERE id=:id')
or die (print_r($this->_db->errorInfo()));
$query->bindValue(':id', $todo->id());
$query->bindValue(':todo', $todo->todo());
$query->bindValue(':priority', $todo->priority());
$query->bindValue(':status', $todo->status());
$query->bindValue(':updated', $todo->updated());
$query->bindValue(':updatedBy', $todo->updatedBy());
$query->execute();
$query->closeCursor();
}
