/**
* Responds to the Identify verb.
*
* Appends the Identify element for the repository to the response.
*/
public function identify()
{
if ($this->error) {
return;
}
/* according to the schema, this order of elements is required for the
response to validate */
$elements = array('repositoryName' => get_option('oaipmh_repository_name'), 'baseURL' => OAI_PMH_BASE_URL, 'protocolVersion' => self::OAI_PMH_PROTOCOL_VERSION, 'adminEmail' => get_option('administrator_email'), 'earliestDatestamp' => OaiPmhRepository_Date::unixToUtc(0), 'deletedRecord' => 'no', 'granularity' => self::OAI_GRANULARITY_STRING);
$identify = $this->createElementWithChildren($this->document->documentElement, 'Identify', $elements);
// Publish support for compression, if appropriate
// This defers to compression set in Omeka's paths.php
if (extension_loaded('zlib') && ini_get('zlib.output_compression')) {
$gzip = $this->document->createElement('compression', 'gzip');
$deflate = $this->document->createElement('compression', 'deflate');
$identify->appendChild($gzip);
$identify->appendChild($deflate);
}
$description = $this->document->createElement('description');
$identify->appendChild($description);
OaiPmhRepository_OaiIdentifier::describeIdentifier($description);
$toolkitDescription = $this->document->createElement('description');
$identify->appendChild($toolkitDescription);
$this->describeToolkit($toolkitDescription);
}
/**
* Helper to get the earlieast datestamp of the repository.
*
* @return string OAI-PMH date stamp.
*/
private function _getEarliestDatestamp()
{
$earliestItem = get_record('Item', array('public' => 1, 'sort_field' => 'added', 'sort_dir' => 'a'));
return $earliestItem ? OaiPmhRepository_Date::dbToUtc($earliestItem->added) : OaiPmhRepository_Date::unixToUtc(0);
}
