/**
* Adds a transformer.
*
* @param Mapping $mapping The mapping object
* @param Transformer $transformer The transformer
*
* @return Mapping
*/
public function transform(Mapping $mapping, Transformer $transformer)
{
$emitter = $mapping->getEmitter();
$emitter->on(Events::APPLIED, function (Data $data) use($transformer) {
if (count($data->getErrors()) > 0) {
return;
}
$data->setResult($transformer->transform($data->getResult()));
});
$emitter->on(Events::UNAPPLY, function (Data $data) use($transformer) {
$data->setInput($transformer->reverseTransform($data->getInput()));
});
return $mapping;
}
public function testReverseTransform()
{
$transformer = new Transformer();
$this->assertSame('foo', $transformer->reverseTransform('foo'));
}