/**
* Fetch data for this collection. If your request is a POST, then we'll
* get the data from the request. If it's not a POST, we ask the
* fetchDataCallback for the initial data set.
*
* @param string $mode
* @return array|mixed
*/
public function getData($mode = self::DATA_MODE_COLUMN_NAMES)
{
if (!$this->request->isPost()) {
return call_user_func($this->fetchDataCallback);
} else {
return $this->getDataFromRequest($this->request->getPost(), $mode);
}
}
