/**
* Responds to the ListSets verb.
* Outputs setSpec and setName for all OAI-PMH sets (Omeka collections).
* @access public
*/
public function listSets()
{
$collectionlist = new Institutions();
$collections = $collectionlist->listCollections();
if (count($collections) === 0) {
$this->throwError(self::OAI_ERR_NO_SET_HIERARCHY);
}
$listSets = $this->document->createElement('ListSets');
if (!$this->_error) {
$this->document->documentElement->appendChild($listSets);
foreach ($collections as $collection) {
$elements = array('setSpec' => $collection['id'], 'setName' => $collection['name']);
$this->createElementWithChildren($listSets, 'set', $elements);
}
}
}
