/**
* Save the resource IFF it has changed.
* @see \Todoist\Todoist::getApiSingleCommandResponse
* @return \Todoist\Resource\Resource
*/
public function &save()
{
$source = json_encode($this->source);
$data = json_encode($this->data);
if ($source === $data) {
return $this;
}
// Attempt to perform the simple update.
// This throws an exception if it would return anything other than TRUE.
$this->engine->getApiSingleCommandResponse($this->update_method, $this->data);
return $this;
}
