/**
* Replace transformer in form builder, keep sorting of transformers
*
* @param FormBuilderInterface $builder
* @param DataTransformerInterface $transformerToReplace
* @param string $type Model or View transformer type to replace in
* @param callable $comparisonCallback Callable function that will be
* used for old transformer detection
*/
public static function replaceTransformer(FormBuilderInterface $builder, DataTransformerInterface $transformerToReplace, $type = 'model', callable $comparisonCallback = null)
{
$transformers = 'model' === $type ? $builder->getModelTransformers() : $builder->getViewTransformers();
$newTransformers = [];
$hasCallback = null !== $comparisonCallback;
$class = get_class($transformerToReplace);
foreach ($transformers as $key => $transformer) {
if ($hasCallback && call_user_func($comparisonCallback, $transformer, $key) || !$hasCallback && is_a($transformer, $class)) {
$newTransformers[] = $transformerToReplace;
} else {
$newTransformers[] = $transformer;
}
}
if (!in_array($transformerToReplace, $newTransformers, true)) {
$newTransformers[] = $transformerToReplace;
}
if ('model' === $type) {
$builder->resetModelTransformers();
array_walk($newTransformers, [$builder, 'addModelTransformer']);
} else {
$builder->resetViewTransformers();
array_walk($newTransformers, [$builder, 'addViewTransformer']);
}
}