/**
* Converts a Zotero_Tag object to a SimpleXMLElement Atom object
*
* @return SimpleXMLElement Tag data as SimpleXML element
*/
public function toAtom($queryParams, $fixedValues = null)
{
if (!empty($queryParams['content'])) {
$content = $queryParams['content'];
} else {
$content = array('none');
}
// TEMP: multi-format support
$content = $content[0];
$xml = new SimpleXMLElement('<?xml version="1.0" encoding="UTF-8"?>' . '<entry xmlns="' . Zotero_Atom::$nsAtom . '" xmlns:zapi="' . Zotero_Atom::$nsZoteroAPI . '"/>');
$xml->title = $this->name;
$author = $xml->addChild('author');
$author->name = Zotero_Libraries::getName($this->libraryID);
$author->uri = Zotero_URI::getLibraryURI($this->libraryID, true);
$xml->id = Zotero_URI::getTagURI($this);
$xml->published = Zotero_Date::sqlToISO8601($this->dateAdded);
$xml->updated = Zotero_Date::sqlToISO8601($this->dateModified);
$link = $xml->addChild("link");
$link['rel'] = "self";
$link['type'] = "application/atom+xml";
$link['href'] = Zotero_API::getTagURI($this);
$link = $xml->addChild('link');
$link['rel'] = 'alternate';
$link['type'] = 'text/html';
$link['href'] = Zotero_URI::getTagURI($this, true);
// Count user's linked items
if (isset($fixedValues['numItems'])) {
$numItems = $fixedValues['numItems'];
} else {
$numItems = sizeOf($this->getLinkedItems(true));
}
$xml->addChild('zapi:numItems', $numItems, Zotero_Atom::$nsZoteroAPI);
if ($content == 'html') {
$xml->content['type'] = 'xhtml';
$contentXML = new SimpleXMLElement("<div/>");
$contentXML->addAttribute("xmlns", Zotero_Atom::$nsXHTML);
$fNode = dom_import_simplexml($xml->content);
$subNode = dom_import_simplexml($contentXML);
$importedNode = $fNode->ownerDocument->importNode($subNode, true);
$fNode->appendChild($importedNode);
} else {
if ($content == 'json') {
$xml->content['type'] = 'application/json';
$xml->content = Zotero_Utilities::formatJSON($this->toJSON());
}
}
return $xml;
}
