/**
* @param SimpleXMLElement $parent
* @param Feed $feed
*
* @throws \imnotjames\Syndicator\Exceptions\SerializationException
*/
private function serializeFeed(SimpleXMLElement $parent, Feed $feed)
{
$channelXML = $parent->addChild('channel');
$title = $feed->getTitle();
$subtitle = $feed->getSubtitle();
if (!empty($subtitle)) {
$title .= $this->subtitleSeparator;
$title .= $subtitle;
}
// Required
$channelXML->addChild('title', $title);
$channelXML->addChild('link', $feed->getURI());
$channelXML->addChild('description', $feed->getDescription());
// optional
$language = $feed->getLanguage();
if (!is_null($language)) {
$channelXML->addChild('language', $language);
}
$datePublished = $feed->getDatePublished();
if (!is_null($datePublished)) {
$channelXML->addChild('pubDate', $datePublished->format(self::DATE_FORMAT));
}
$dateUpdated = $feed->getDateUpdated();
if (!is_null($dateUpdated)) {
$channelXML->addChild('lastBuildDate', $dateUpdated->format(self::DATE_FORMAT));
}
if (is_null($feed->getGenerator())) {
$channelXML->addChild('generator', $this->generator);
} else {
$channelXML->addChild('generator', $feed->getGenerator());
}
$logo = $feed->getLogo();
if (!is_null($logo)) {
$this->serializeLogo($channelXML, $logo);
}
$categories = $feed->getCategories();
foreach ($categories as $category) {
$this->serializeCategory($channelXML, $category);
}
// Generate the feed items
$articles = $feed->getArticles();
foreach ($articles as $article) {
$this->serializeArticle($channelXML, $article);
}
}
/**
* Parse a Feed object from xml
*
* @param SimpleXMLElement $xml
*
* @return Feed
*/
private function parseFeed(SimpleXMLElement $xml)
{
$title = (string) $xml->channel->title;
$link = (string) $xml->channel->link;
$description = (string) $xml->channel->description;
$feed = new Feed($title, $description, $link);
if (isset($xml->channel->item)) {
foreach ($xml->channel->item as $item) {
$article = $this->parseArticle($item);
if (!is_null($article)) {
$feed->addArticle($article);
}
}
}
if (isset($xml->channel->category)) {
foreach ($xml->channel->category as $category) {
$feed->addCategory($this->parseCategory($category));
}
}
if (isset($xml->channel->generator)) {
$feed->setGenerator((string) $xml->channel->generator);
}
if (isset($xml->channel->cloud)) {
$feed->setSubscription($this->parseSubscription($xml->channel->cloud));
}
if (isset($xml->channel->image)) {
$feed->setLogo($this->parseLogo($xml->channel->image));
}
if (isset($xml->channel->managingEditor)) {
$feed->setEditorContact($this->parseContact($xml->channel->managingEditor));
}
if (isset($xml->channel->webMaster)) {
$feed->setWebmasterContact($this->parseContact($xml->channel->webMaster));
}
if (isset($xml->channel->docs)) {
$feed->setDocumentationURI((string) $xml->channel->docs);
}
if (isset($xml->channel->language)) {
$feed->setLanguage((string) $xml->channel->language);
}
if (isset($xml->channel->ttl)) {
$feed->setCacheTimeToLive(intval($xml->channel->ttl));
}
if (isset($xml->channel->pubDate)) {
$feed->setDatePublished($this->parseDateTime($xml->channel->pubDate));
}
if (isset($xml->channel->lastBuildDate)) {
$feed->setDateUpdated($this->parseDateTime($xml->channel->lastBuildDate));
}
if (isset($xml->channel->skipHours)) {
foreach ($xml->channel->skipHours as $skip) {
$feed->addSkip(new SkipHour(intval((string) $skip)));
}
}
if (isset($xml->channel->skipDays)) {
foreach ($xml->channel->skipDays as $skip) {
$feed->addSkip(new SkipWeekday((string) $skip));
}
}
return $feed;
}
