/**
* @param \Madewithlove\Export\Csv\Transformer $transformer
*
* @return \League\Csv\Writer
*/
private function writer(Transformer $transformer = null)
{
$writer = Writer::createFromFileObject(new SplTempFileObject());
if ($transformer instanceof WithHeaders) {
$writer->insertOne($transformer->getHeaders());
}
if ($transformer instanceof Transformer) {
$writer->addFormatter([$transformer, 'transform']);
}
return $writer;
}
/**
* @param array $row
*
* @return array
*/
public function transform(array $row)
{
return $this->wrapped->transform($row);
}