/**
* @inheritdoc
*/
public function addCustomModifiers(FeedBuilderInterface $builder, array $options)
{
$builder->addTransformer(new CallbackTransformer(function ($value) {
return $value['@href'];
}), 'itunes:image', 50);
$builder->addTransformer(new CallbackTransformer(function ($value) {
return $value['@url'];
}), 'enclosure', 51);
$this->addModifierBetween($builder, new CallbackFilter(function (FeedItemBag $item) {
if ($item->get('itunesexplicit') === 'yes') {
throw new FilterException('Explicit content');
}
}), 2000, 2500);
$this->addTransformerBetween($builder, new HtmlToMarkdownTransformer(new ConverterExtra(), new \HTMLPurifier($this->getPurifierConfig())), 'body', 3000, 3500);
$this->addTransformerBetween($builder, new CallbackTransformer(function ($value) {
if (strpos($value, ':') === false) {
throw new TransformationFailedException('Invalid duration');
}
list($hours, $minutes, $seconds) = explode(':', $value);
return 3600 * $hours + 60 * $minutes + $seconds;
}), 'duration', 3000, 3500);
$this->addTransformerBetween($builder, new CallbackTransformer(function ($value) {
$repo = $this->doctrine->getRepository('TreeHouseIoIntegrationBundle:Author');
if (null === ($author = $repo->findOneBy(['name' => $value]))) {
$author = new Author();
$author->setName($value);
$this->doctrine->getManager()->persist($author);
$this->doctrine->getManager()->flush($author);
}
return $author;
}), 'author', 3000, 3500);
$this->addModifierBetween($builder, new CallbackItemTransformer(function (FeedItemBag $item) {
preg_match('~^(\\d+):~', $item->get('title'), $matches);
$item->set('number', $matches[1]);
}), 3000, 3500);
}
/**
* Adds the given modifier between the start and end index, if there is a vacant position.
*
* @param FeedBuilderInterface $builder
* @param ModifierInterface $modifier
* @param int $startIndex
* @param int $endIndex
* @param bool $continue
*
* @throws \OutOfBoundsException
*/
protected function addModifierBetween(FeedBuilderInterface $builder, ModifierInterface $modifier, $startIndex, $endIndex, $continue = null)
{
for ($position = $startIndex; $position <= $endIndex; ++$position) {
if (!$builder->hasModifierAt($position)) {
$builder->addModifier($modifier, $position, $continue);
return;
}
}
throw new \OutOfBoundsException(sprintf('No position left between %d and %d', $startIndex, $endIndex));
}
