/**
* Prepare the set description for the collection / set, if any.
*
* @see OaiPmhRepository_Metadata_OaiDc::appendMetadata()
*
* @param Dom $set
* @param Collection $collection
* @return Dom
*/
protected function _addSetDescription($set, $collection)
{
// Prepare the list of Dublin Core element texts, except the first title.
$elementTexts = array();
// List of the Dublin Core terms, needed to removed qualified ones.
$dcTerms = array('title' => 'Title', 'creator' => 'Creator', 'subject' => 'Subject', 'description' => 'Description', 'publisher' => 'Publisher', 'contributor' => 'Contributor', 'date' => 'Date', 'type' => 'Type', 'format' => 'Format', 'identifier' => 'Identifier', 'source' => 'Source', 'language' => 'Language', 'relation' => 'Relation', 'coverage' => 'Coverage', 'rights' => 'Rights');
foreach ($dcTerms as $name => $elementName) {
$elTexts = $collection->getElementTexts('Dublin Core', $elementName);
// Remove the first title.
if ($elementName == 'Title' && isset($elTexts[0])) {
unset($elTexts[0]);
}
if ($elTexts) {
$elementTexts[$name] = $elTexts;
}
}
if (empty($elementTexts)) {
return $set;
}
$setDescription = $this->document->createElement('setDescription');
$set->appendChild($setDescription);
$oai_dc = $this->document->createElementNS(OaiPmhRepository_Metadata_OaiDc::METADATA_NAMESPACE, 'oai_dc:dc');
$setDescription->appendChild($oai_dc);
$oai_dc->setAttribute('xmlns:dc', OaiPmhRepository_Metadata_OaiDc::DC_NAMESPACE_URI);
$oai_dc->declareSchemaLocation(OaiPmhRepository_Metadata_OaiDc::METADATA_NAMESPACE, OaiPmhRepository_Metadata_OaiDc::METADATA_SCHEMA);
foreach ($elementTexts as $name => $elTexts) {
foreach ($elTexts as $elementText) {
$oai_dc->appendNewElement('dc:' . $name, $elementText->text);
}
}
}
