function taxonomy_xml_add_terms_as_rdf in Taxonomy import/export via XML 6.2

Same name and namespace in other branches

1. 5.2 rdf_format.inc \taxonomy_xml_add_terms_as_rdf()
2. 5 rdf_format.inc \taxonomy_xml_add_terms_as_rdf()
3. 6 rdf_format.inc \taxonomy_xml_add_terms_as_rdf()

Given a list of terms, append definitions of them to the passed DOM container

Following w3c, SUMO and Wordnet examples (tho not any explicit instructions, taxonomy terms are modelled as rdfs:Class objects structured using rdfs: subClassOf statements.

Sample from Wordnet:

<Class rdf:about="http://xmlns.com/wordnet/1.6/Cat"> <label>Cat [ 1 ]</label> <comment>feline mammal usually having thick soft fur and being unable to roar; domestic cats; wildcats</comment> <subClassOf> <Class rdf:about="http://xmlns.com/wordnet/1.6/Feline" /> </subClassOf> </Class>

I'm copying that syntax.

Parameters

$termlist a FLAT array of all terms, internally cross-referenced to: each other defining the tree stucture

2 calls to taxonomy_xml_add_terms_as_rdf()

taxonomy_xml_rdf_create in ./rdf_format.inc

Return an XML/RDF document representing this vocab

taxonomy_xml_rdf_export_term in ./rdf_format.inc

Return a term as RDF. Header and all

File

./rdf_format.inc, line 1046

Include routines for RDF parsing and taxonomy/term creation. @author dman http://coders.co.nz

Code

function taxonomy_xml_add_terms_as_rdf(&$domcontainer, $termlist, $vocabulary) {
  if (!$termlist) {
    return;
  }
  $dom = $domcontainer->ownerDocument;
  $mapping = taxonomy_xml_get_mapping('taxonomy_term');

  // Allow submission of a single term
  if (!is_array($termlist)) {
    $termlist = array(
      $termlist,
    );
  }
  foreach ($termlist as $term) {
    module_invoke_all('taxonomy_term_load', $term);
    $term->uri = taxonomy_xml_taxonomy_term_uri($term);

    // List child terms, this will help if breaking the XML into lumps
    $term->child = taxonomy_get_children($term->tid, $term->vid);
    $termnode = taxonomy_xml_entity_to_rdf($term, 'taxonomy_term', $domcontainer);

    // That has already added it to the document - required to prevent it adding dummy namespaces
    $termnode
      ->setattributens(TAXONOMY_XML_RDF_NS, 'rdf:ID', $term->uri['id']);

    // Add this because it helps visualizations
    if (empty($term->parent)) {
      $vocabulary_uri = taxonomy_xml_taxonomy_vocabulary_uri($term->vid);
      $rel_node = $dom
        ->createelementns(TAXONOMY_XML_SKOS_NS, 'skos:topConceptOf');
      $rel_node
        ->setattributens(TAXONOMY_XML_RDF_NS, 'rdf:resource', '#' . $vocabulary->uri['id']);
      $termnode
        ->appendchild($rel_node);
    }
    if ($guid = taxonomy_xml_get_term_guid($term)) {
      $termnode
        ->setattributens(TAXONOMY_XML_RDF_NS, 'rdf:about', $guid);
    }

    // Additional module support
    // eg taxonomy_image, geotaxonomy, path
    //
    $hook = 'taxonomy_xml_rdf_export_term';

    // Can't use module_invoke as we need pass-by-ref
    foreach (module_implements($hook) as $module) {
      $function = $module . '_' . $hook;
      $function($termnode, $term);
    }

    # dpm(array('adding term to rdf' => $term));

    #$termnode->appendchild($dom->createcomment(print_r($term, 1)));

    // workaround for large vocabs - extend runtime indefinately
    set_time_limit(10);
  }

  // Done all terms in list
}