public function RestWSFormatRDF::addToXML in RESTful Web Services 7

Same name and namespace in other branches

1. 7.2 restws.formats.inc \RestWSFormatRDF::addToXML()

Adds the data of the given wrapper to the given XML element.

1 call to RestWSFormatRDF::addToXML()

RestWSFormatRDF::viewResource in ./restws.formats.inc

Gets the representation of a resource.

File

./restws.formats.inc, line 355

RESTful web services module formats.

Class

RestWSFormatRDF

A simple formatter for RDF. Requires the RDF module for the mapping.

Code

public function addToXML(DOMDocument $doc, DOMNode $parent, $wrapper) {
  $filtered = restws_property_access_filter($wrapper);
  foreach ($filtered as $name => $property) {
    try {
      if ($property instanceof EntityDrupalWrapper) {

        // For referenced entities only return the URI.
        if ($id = $property
          ->getIdentifier()) {
          $element = $this
            ->addRdfElement($doc, $wrapper, $name);
          $parent
            ->appendChild($element);
          $this
            ->addReference($doc, $element, $property
            ->type(), $id);
        }
      }
      elseif ($property instanceof EntityValueWrapper) {
        $element = $this
          ->addRdfElement($doc, $wrapper, $name);
        $parent
          ->appendChild($element);
        $element->nodeValue = $property
          ->value();
      }
      elseif ($property instanceof EntityListWrapper || $property instanceof EntityStructureWrapper) {
        $element = $this
          ->addRdfElement($doc, $wrapper, $name);
        $parent
          ->appendChild($element);
        $node = $doc
          ->createElementNS($this->namespaces['rdf'], 'rdf:Description');
        $element
          ->appendChild($node);
        $this
          ->addToXML($doc, $node, $property);
      }
    } catch (EntityMetadataWrapperException $e) {

      // A property causes problems - ignore that.
    }
  }
}