/**
* @param array $data
* @return Option
*/
public function extract($data)
{
$secondExtractor = $this->secondExtractor;
return $this->firstExtractor->extract($data)->apply(function ($firstResult) use($secondExtractor) {
return $secondExtractor->extract($firstResult);
});
}
/**
* @param array $data
* @return Option
*/
public function extract($data)
{
$result = array();
foreach ($data as $row) {
$r = $this->innerExtractor->extract($row)->getOrElse(null);
if ($r !== null) {
$result[] = $r;
}
}
return $result ? new Some($this->process($result)) : None::create();
}
/**
* @param Extractor $extractor
* @param string $expected
*/
private function assertExtracts($extractor, $expected)
{
$this->assertEquals($expected, $extractor->extract($this->sample)->getOrElse(null));
}
/**
* @param Extractor $extractor
* @param string $expected
*/
private function assertExtracts($extractor, $expected)
{
$sample = array('foo' => array('bar' => 'result'), 'baz' => 'something');
$this->assertEquals($expected, $extractor->extract($sample)->getOrElse(null));
}