/**
* Retrieves a document specified by the ID and returns a MARC record.
*
* @param string $id The document to retrieve from Solr
* @access public
* @throws object PEAR Error
* @return string The requested resource
*/
function getRecord($id)
{
if ($this->debug) {
echo "<pre>Get Record: {$id}</pre>\n";
}
// Query String Parameters
$options = array('operation' => 'searchRetrieve', 'query' => "rec.id=\"{$id}\"", 'maximumRecords' => 1, 'startRecord' => 1, 'recordSchema' => 'marcxml');
$result = $this->_call('GET', $options, false);
if (PEAR_Singleton::isError($result)) {
PEAR_Singleton::raiseError($result);
}
$style = new DOMDocument();
$style->load('xsl/sru-marcxml.xsl');
$xsl = new XSLTProcessor();
$xsl->importStyleSheet($style);
$xml = new DOMDocument();
$xml->loadXML($result);
$marcxml = $xsl->transformToXML($xml);
$marc = new File_MARCXML($marcxml, File_MARC::SOURCE_STRING);
return $marc->next();
}
$sru_url = $config['sru'];
$sru_url .= "?operation=searchRetrieve";
$sru_url .= "&version={$version}";
$sru_url .= "&query={$query}";
$sru_url .= "&recordSchema={$recordSchema}";
$sru_url .= "&startRecord={$startRecord}";
$sru_url .= "&maximumRecords={$maximumRecords}";
// Fetch the SRU data
$sru_data = file_get_contents($sru_url) or exit("SRU error");
// Turn the returned XML in to pure MARCXML
$sru_data = str_replace("<record xmlns=\"http://www.loc.gov/MARC21/slim\">", "<record>", $sru_data);
preg_match_all('/(<record>.*?<\\/record>)/si', $sru_data, $treff);
$marcxml = implode("\n\n", $treff[0]);
$marcxml = '<?xml version="1.0" encoding="utf-8"?>' . "\n<collection>\n{$marcxml}\n</collection>";
// Parse the XML
$records = new File_MARCXML($marcxml, File_MARC::SOURCE_STRING);
// Get the first (and only) record
$record = $records->next();
$out = '';
// Decide what to do based on the contents of the MARC record
// Journals
// Fetch TOC (most recent articles) by way of Journal TOCs
// http://www.journaltocs.hw.ac.uk/index.php?action=api
if ($record->getField("022") && $record->getField("022")->getSubfield("a")) {
$issn = marctrim($record->getField("022")->getSubfield("a"));
if ($issn) {
$url = 'http://www.journaltocs.hw.ac.uk/api/journals/' . $issn . '?output=articles';
$xml = simplexml_load_file($url);
$xml->registerXPathNamespace("rdf", "http://www.w3.org/1999/02/22-rdf-syntax-ns#");
$xml->registerXPathNamespace("prism", "http://prismstandard.org/namespaces/1.2/basic/");
$xml->registerXPathNamespace("dc", "http://purl.org/dc/elements/1.1/");
/**
* Set holdings structure
*
* @param String $holdingsXml
* @throws \File_MARC_Exception
*/
protected function setHoldingsContent($holdingsXml)
{
if (is_string($holdingsXml) && strlen($holdingsXml) > 30) {
$holdingsMarcXml = new \File_MARCXML($holdingsXml, \File_MARCXML::SOURCE_STRING);
$marcData = $holdingsMarcXml->next();
if (!$marcData) {
throw new \File_MARC_Exception('Cannot Process Holdings Structure');
}
$this->holdings = $marcData;
} else {
// Invalid input data. Currently just ignore it
$this->holdings = false;
$this->holdingData = array();
}
}
/**
* Constructor
*
* @access public
*/
public function __construct()
{
global $configArray;
global $interface;
parent::__construct();
// Assign the ID of the last search so the user can return to it.
$interface->assign('lastsearch', isset($_SESSION['lastSearchURL']) ? $_SESSION['lastSearchURL'] : false);
$this->id = $_REQUEST['id'];
$interface->assign('id', $this->id);
$this->cacheId = 'WCRecord|' . $this->id . '|' . get_class($this);
// Define Default Tab
$tab = isset($_GET['action']) && $_GET['action'] != 'Record' ? $_GET['action'] : 'Holdings';
$interface->assign('tab', $tab);
// Fetch Record
$this->worldcat = new Worldcat();
$record = $this->worldcat->getRecord($this->id);
if (PEAR::isError($record)) {
PEAR::raiseError($record);
}
// Process MARCXML Data
$marc = new File_MARCXML($record, File_MARC::SOURCE_STRING);
if ($this->record = $marc->next()) {
$interface->assign('marc', $this->record);
} else {
PEAR::raiseError('Cannot Process MARC Record');
}
// Save best available ISBN value:
$this->isbn = $this->_getBestISBN();
// Define External Content Provider
if ($this->isbn) {
$interface->assign('isbn', $this->isbn);
if (isset($configArray['Content']['reviews'])) {
$interface->assign('hasReviews', true);
}
if (isset($configArray['Content']['excerpts'])) {
$interface->assign('hasExcerpt', true);
}
}
// Retrieve tags associated with the record
$resource = new Resource();
$resource->record_id = $this->id;
$resource->source = 'WorldCat';
$tags = $resource->getTags();
$interface->assign('tagList', is_array($tags) ? $tags : array());
// Find Similar Records
$similar = $this->worldcat->getMoreLikeThis($this->record);
$interface->assign('similarRecords', $similar['record']);
// Find Other Editions
$editions = $this->_getEditions();
if (!PEAR::isError($editions)) {
$interface->assign('editions', $editions);
}
// Define CoINs Identifier
$coinsID = isset($configArray['OpenURL']['rfr_id']) ? $configArray['OpenURL']['rfr_id'] : $configArray['COinS']['identifier'];
if (empty($coinsID)) {
$coinsID = 'vufind.svn.sourceforge.net';
}
$interface->assign('coinsID', $coinsID);
// Set Proxy URL
$interface->assign('proxy', isset($configArray['EZproxy']['host']) ? $configArray['EZproxy']['host'] : false);
$interface->setPageTitle($this->_getBestTitle());
}
/**
* Given a subject term, get related (broader/narrower/alternate) terms.
* Loosely adapted from Eric Lease Morgan's Term Finder demo (see
* http://zoia.library.nd.edu/sandbox/term-finder/). Note that this is
* intended as a fairly fuzzy search -- $term need not be an exact subject
* heading; this function will return best guess matches in the 'exact'
* key, possible broader terms in the 'broader' key and possible narrower
* terms in the 'narrower' key of the return array.
*
* @param string $term Term to get related terms for.
* @param string $vocabulary Vocabulary to search (default = LCSH; see OCLC docs
* for other options).
* @param int $maxRecords Max # of records to read from API (more = slower).
*
* @return mixed False on error, otherwise array of related terms,
* keyed by category.
* @access public
*/
public function getRelatedTerms($term, $vocabulary = 'lcsh', $maxRecords = 10)
{
// Strip quotes from incoming term:
$term = str_replace('"', '', $term);
// Build the request URL:
$url = "http://tspilot.oclc.org/" . urlencode($vocabulary) . "/?" . "query=oclcts.preferredTerm+%3D+%22" . urlencode($term) . "%22+OR+oclcts.alternativeTerms+%3D+%22" . urlencode($term) . "%22" . "&version=1.1" . "&operation=searchRetrieve" . "&recordSchema=info%3Asrw%2Fschema%2F1%2Fmarcxml-v1.1" . "&maximumRecords=" . intval($maxRecords) . "&startRecord=1" . "&resultSetTTL=300" . "&recordPacking=xml" . "&recordXPath=" . "&sortKeys=recordcount";
// Get the API response:
$data = @file_get_contents($url);
// Extract plain MARCXML from the WorldCat response:
$style = new DOMDocument();
$style->load('xsl/wcterms-marcxml.xsl');
$xsl = new XSLTProcessor();
$xsl->importStyleSheet($style);
$xml = new DOMDocument();
$xml->loadXML($data);
$marcxml = $xsl->transformToXML($xml);
// Try to parse the MARCXML into a File_MARC object; if this fails,
// we probably have bad MARCXML, which may indicate an API failure
// or an empty record set. Just give up if this happens!
try {
$marc = new File_MARCXML($marcxml, File_MARCXML::SOURCE_STRING);
} catch (File_MARC_Exception $e) {
return false;
}
// Initialize arrays:
$exact = array();
$broader = array();
$narrower = array();
while ($record = $marc->next()) {
// Get exact terms:
$actual = $record->getField('150');
if ($actual) {
$main = $actual->getSubfield('a');
if ($main) {
// Some versions of File_MARCXML seem to have trouble returning
// strings properly (giving back XML objects instead); let's
// cast to string to be sure we get what we expect!
$main = (string) $main->getData();
// Add subdivisions:
$subdivisions = $actual->getSubfields('x');
if ($subdivisions) {
foreach ($subdivisions as $current) {
$main .= ', ' . (string) $current->getData();
}
}
// Only save the actual term if it is not a subset of the
// requested term.
if (!stristr($term, $main)) {
$exact[] = $main;
}
}
}
// Get broader/narrower terms:
$related = $record->getFields('550');
foreach ($related as $current) {
$type = $current->getSubfield('w');
$value = $current->getSubfield('a');
if ($type && $value) {
$type = (string) $type->getData();
$value = (string) $value->getData();
if ($type == 'g') {
// Don't save exact matches to the user-entered term:
if (strcasecmp($term, $value) != 0) {
$broader[] = $value;
}
} else {
if ($type == 'h') {
// Don't save exact matches to the user-entered term:
if (strcasecmp($term, $value) != 0) {
$narrower[] = $value;
}
}
}
}
}
}
// Send back everything we found, sorted and filtered for uniqueness; note
// that we do NOT sort FAST results since they support relevance ranking.
// As of this writing, other vocabularies do not support relevance.
if ($vocabulary !== 'fast') {
natcasesort($exact);
natcasesort($broader);
natcasesort($narrower);
}
return array('exact' => array_unique($exact), 'broader' => array_unique($broader), 'narrower' => array_unique($narrower));
}
function postvisning($id)
{
global $config;
$marcxml = '';
if (!empty($config['libraries'][$_GET['bib']]['sru'])) {
$marcxml = get_sru('rec.id=' . urlencode($id), 1);
} else {
$marcxml = get_z('tnr=' . urlencode($id), 1);
}
if ($config['debug']) {
echo "\n\n <!-- \n\n {$marcxml} \n\n --> \n\n ";
}
// Variabel som skal samle opp output
$out = "";
// Hent ut MARC-postene fra strengen i $marcxml
$poster = new File_MARCXML($marcxml, File_MARC::SOURCE_STRING);
// Gå igjennom postene
while ($post = $poster->next()) {
$out .= '<p class="tilbake"><a href="javascript:history.go(-1)">Tilbake til trefflista</a></p>';
$data = get_basisinfo($post, true);
$out .= $data['post'];
$out .= get_detaljer($post);
}
return $out;
}
function glitre_sort($marcxml, $sort_by = 'default', $sort_order = 'default')
{
global $config;
if ($sort_by == 'default') {
$sort_by = $config['default_sort_by'];
}
if ($sort_order == 'default') {
$sort_order = $config['default_sort_order'];
}
// Check that sort_by and sort_order are valid
$allowed_sort_by = array('author', 'year', 'title');
if (!in_array($sort_by, $allowed_sort_by)) {
exit("Invalid sort_by: {$sort_by}");
}
$allowed_sort_order = array('descending', 'ascending');
if (!in_array($sort_order, $allowed_sort_order)) {
exit("Invalid sort_order: {$sort_order}");
}
// Parse the records
$rawrecords = new File_MARCXML($marcxml, File_MARC::SOURCE_STRING);
// Make the records sortable
$records = array();
while ($rawrec = $rawrecords->next()) {
$records[] = get_sortable_record($rawrec);
}
// Do the actual sorting
if ($sort_by == 'year' && $sort_order == 'descending') {
usort($records, "sort_year_descending");
} elseif ($sort_by == 'year' && $sort_order == 'ascending') {
usort($records, "sort_year_ascending");
} elseif ($sort_by == 'title' && $sort_order == 'descending') {
usort($records, "sort_title_descending");
} elseif ($sort_by == 'title' && $sort_order == 'ascending') {
usort($records, "sort_title_ascending");
} elseif ($sort_by == 'author' && $sort_order == 'descending') {
usort($records, "sort_author_descending");
} elseif ($sort_by == 'author' && $sort_order == 'ascending') {
usort($records, "sort_author_ascending");
}
return $records;
}
