/**
* Try to build an array of OCLC Number, ISBN or ISSN-based sub-queries by
* using OCLC X-services against a record driver object.
*
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver object
*
* @return array
*/
protected function getQueryParts($driver)
{
$parts = [];
$oclcNum = $driver->tryMethod('getCleanOCLCNum');
if (!empty($oclcNum)) {
$oclcList = $this->wcUtils->getXOCLCNUM($oclcNum);
if (!empty($oclcList)) {
$parts[] = '(srw.no any "' . implode(' ', $oclcList) . '")';
}
}
$isbn = $driver->tryMethod('getCleanISBN');
if (!empty($isbn)) {
$isbnList = $this->wcUtils->getXISBN($isbn);
if (!empty($isbnList)) {
$parts[] = '(srw.bn any "' . implode(' ', $isbnList) . '")';
}
}
$issn = $driver->tryMethod('getCleanISSN');
if (!empty($issn)) {
$issnList = $this->wcUtils->getXISSN($issn);
if (!empty($issnList)) {
$parts[] = '(srw.sn any "' . implode(' ', $issnList) . '")';
}
}
return $parts;
}
/**
* Support method to turn a record driver object into an RSS entry.
*
* @param Feed $feed Feed to update
* @param \VuFind\RecordDriver\AbstractBase $record Record to add to feed
*
* @return void
*/
protected function addEntry($feed, $record)
{
$entry = $feed->createEntry();
$title = $record->tryMethod('getTitle');
$title = empty($title) ? $record->getBreadcrumb() : $title;
$entry->setTitle(empty($title) ? $this->translate('Title not available') : $title);
$serverUrl = $this->getView()->plugin('serverurl');
$recordLink = $this->getView()->plugin('recordlink');
try {
$url = $serverUrl($recordLink->getUrl($record));
} catch (\Zend\Mvc\Router\Exception\RuntimeException $e) {
// No route defined? See if we can get a URL out of the driver.
// Useful for web results, among other things.
$url = $record->tryMethod('getUrl');
if (empty($url) || !is_string($url)) {
throw new \Exception('Cannot find URL for record.');
}
}
$entry->setLink($url);
$date = $this->getDateModified($record);
if (!empty($date)) {
$entry->setDateModified($date);
}
$author = $record->tryMethod('getPrimaryAuthor');
if (!empty($author)) {
$entry->addAuthor(['name' => $author]);
}
$authors = $record->tryMethod('getSecondaryAuthors');
if (is_array($authors)) {
foreach ($authors as $author) {
$entry->addAuthor(['name' => $author]);
}
}
$formats = $record->tryMethod('getFormats');
if (is_array($formats)) {
// Take only the most specific format and get rid of level indicator
// and trailing slash
$format = end($formats);
$format = implode('/', array_slice(explode('/', $format), 1, -1));
$entry->addDCFormat($format);
}
$dcDate = $this->getDcDate($record);
if (!empty($dcDate)) {
$entry->setDCDate($dcDate);
}
$urlHelper = $this->getView()->plugin('url');
$recordHelper = $this->getView()->plugin('record');
$recordImage = $this->getView()->plugin('recordImage');
$imageUrl = $recordImage($recordHelper($record))->getLargeImage();
$entry->setEnclosure(['uri' => $serverUrl($imageUrl), 'type' => 'image/jpeg', 'length' => 1]);
$entry->setCommentCount(count($record->getComments()));
$summaries = $record->tryMethod('getSummary');
if (!empty($summaries)) {
$entry->setDescription(implode(' -- ', $summaries));
}
$feed->addEntry($entry);
}
/**
* Generate a thumbnail URL (return false if unsupported).
*
* @param RecordDriver $driver Record driver
* @param string $size Size of thumbnail (small, medium or large --
* small is default).
*
* @return string|bool
*/
public function getUrl(RecordDriver $driver, $size = 'small')
{
// Try to build thumbnail:
$thumb = $driver->tryMethod('getThumbnail', [$size]);
// No thumbnail? Return false:
if (empty($thumb)) {
return false;
}
// Array? It's parameters to send to the cover generator:
if (is_array($thumb)) {
return $this->dynamicUrl . '?' . http_build_query($thumb);
}
// Default case -- return fixed string:
return $thumb;
}
/**
* Establishes base settings for making recommendations.
*
* @param string $settings Settings from config.ini
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver object
*
* @return void
*/
public function init($settings, $driver)
{
// Create array of query parts:
$parts = [];
// Add Dewey class to query
$deweyClass = $driver->tryMethod('getDeweyCallNumber');
if (!empty($deweyClass)) {
// Skip "English Fiction" Dewey class -- this won't give us useful
// matches because there's too much of it and it's too broad.
if (substr($deweyClass, 0, 3) != '823') {
$parts[] = 'srw.dd any "' . $deweyClass . '"';
}
}
// Add author to query
$author = $driver->getPrimaryAuthor();
if (!empty($author)) {
$parts[] = 'srw.au all "' . $author . '"';
}
// Add subjects to query
$subjects = $driver->getAllSubjectHeadings();
foreach ($subjects as $current) {
$parts[] = 'srw.su all "' . implode(' ', $current) . '"';
}
// Add title to query
$title = $driver->getTitle();
if (!empty($title)) {
$parts[] = 'srw.ti any "' . str_replace('"', '', $title) . '"';
}
// Build basic query:
$query = '(' . implode(' or ', $parts) . ')';
// Not current record ID if this is already a WorldCat record:
if ($driver->getSourceIdentifier() == 'WorldCat') {
$id = $driver->getUniqueId();
$query .= " not srw.no all \"{$id}\"";
}
// Perform the search and save results:
$queryObj = new \VuFindSearch\Query\Query($query);
$result = $this->searchService->search('WorldCat', $queryObj, 0, 5);
$this->results = $result->getRecords();
}
/**
* Construct volume/issue/date portion of APA citation. Returns an array with
* three elements: volume, issue and date (since these end up in different areas
* of the final citation, we don't return a single string, but since their
* determination is related, we need to do the work in a single function).
*
* @return array
*/
protected function getAPANumbersAndDate()
{
$vol = $this->driver->tryMethod('getContainerVolume');
$num = $this->driver->tryMethod('getContainerIssue');
$date = $this->details['pubDate'];
if (strlen($date) > 4) {
try {
$year = $this->dateConverter->convertFromDisplayDate('Y', $date);
$month = $this->dateConverter->convertFromDisplayDate('F', $date);
$day = $this->dateConverter->convertFromDisplayDate('j', $date);
} catch (DateException $e) {
// If conversion fails, use raw date as year -- not ideal,
// but probably better than nothing:
$year = $date;
$month = $day = '';
}
} else {
$year = $date;
$month = $day = '';
}
// We need to supply additional date information if no vol/num:
if (!empty($vol) || !empty($num)) {
// If only the number is non-empty, move the value to the volume to
// simplify template behavior:
if (empty($vol) && !empty($num)) {
$vol = $num;
$num = '';
}
return [$vol, $num, $year];
} else {
// Right now, we'll assume if day == 1, this is a monthly publication;
// that's probably going to result in some bad citations, but it's the
// best we can do without writing extra record driver methods.
$finalDate = $year . (empty($month) ? '' : ', ' . $month) . ($day > 1 ? ' ' . $day : '');
return ['', '', $finalDate];
}
}
/**
* Get all the links associated with this record. Returns an array of
* associative arrays each containing 'desc' and 'url' keys.
*
* @return array
*/
public function getLinkDetails()
{
// See if there are any links available:
$urls = $this->driver->tryMethod('getURLs');
if (empty($urls)) {
return [];
}
// If we found links, we may need to convert from the "route" format
// to the "full URL" format.
$urlHelper = $this->getView()->plugin('url');
$serverUrlHelper = $this->getView()->plugin('serverurl');
$formatLink = function ($link) use($urlHelper, $serverUrlHelper) {
// Error if route AND URL are missing at this point!
if (!isset($link['route']) && !isset($link['url'])) {
throw new \Exception('Invalid URL array.');
}
// Build URL from route/query details if missing:
if (!isset($link['url'])) {
$routeParams = isset($link['routeParams']) ? $link['routeParams'] : [];
$link['url'] = $serverUrlHelper($urlHelper($link['route'], $routeParams));
if (isset($link['queryString'])) {
$link['url'] .= $link['queryString'];
}
}
// Apply prefix if found
if (isset($link['prefix'])) {
$link['url'] = $link['prefix'] . $link['url'];
}
// Use URL as description if missing:
if (!isset($link['desc'])) {
$link['desc'] = $link['url'];
}
return $link;
};
return array_map($formatLink, $urls);
}
/**
* Use a record driver to assign metadata to the current row. Return the
* current object to allow fluent interface.
*
* @param \VuFind\RecordDriver\AbstractBase $driver The record driver
* @param \VuFind\Date\Converter $converter Date converter
*
* @return \VuFind\Db\Row\Resource
*/
public function assignMetadata($driver, \VuFind\Date\Converter $converter)
{
// Grab title -- we have to have something in this field!
$this->title = $driver->tryMethod('getSortTitle');
if (empty($this->title)) {
$this->title = $driver->getBreadcrumb();
}
// Try to find an author; if not available, just leave the default null:
$author = $driver->tryMethod('getPrimaryAuthor');
if (!empty($author)) {
$this->author = $author;
}
// Try to find a year; if not available, just leave the default null:
$dates = $driver->tryMethod('getPublicationDates');
if (isset($dates[0]) && strlen($dates[0]) > 4) {
try {
$year = $converter->convertFromDisplayDate('Y', $dates[0]);
} catch (DateException $e) {
// If conversion fails, don't store a date:
$year = '';
}
} else {
$year = isset($dates[0]) ? $dates[0] : '';
}
if (!empty($year)) {
$this->year = intval($year);
}
return $this;
}
/**
* Does the specified record support the specified export format?
*
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver
* @param string $format Format to check
*
* @return bool
*/
public function recordSupportsFormat($driver, $format)
{
// Check if the driver explicitly disallows the format:
if ($driver->tryMethod('exportDisabled', [$format])) {
return false;
}
// Check the requirements for export in the requested format:
if (isset($this->exportConfig->{$format})) {
if (isset($this->exportConfig->{$format}->requiredMethods)) {
foreach ($this->exportConfig->{$format}->requiredMethods as $method) {
// If a required method is missing, give up now:
if (!is_callable([$driver, $method])) {
return false;
}
}
}
// If we got this far, we didn't encounter a problem, and the
// requested export format is valid, so we can report success!
return true;
}
// If we got this far, we couldn't find evidence of support:
return false;
}
/**
* Try to build an array of OCLC Number, ISBN or ISSN-based sub-queries by
* using OCLC X-services against a record driver object.
*
* @param \VuFind\RecordDriver\AbstractBase $driver Record driver object
*
* @return array
*/
protected function getQueryParts($driver)
{
$parts = [];
$oclcNum = $driver->tryMethod('getCleanOCLCNum');
if (!empty($oclcNum)) {
$oclcList = $this->wcUtils->getXOCLCNUM($oclcNum);
foreach ($oclcList as $current) {
$parts[] = "oclc_num:" . $current;
}
}
$isbn = $driver->tryMethod('getCleanISBN');
if (!empty($isbn)) {
$isbnList = $this->wcUtils->getXISBN($isbn);
foreach ($isbnList as $current) {
$parts[] = 'isbn:' . $current;
}
}
$issn = $driver->tryMethod('getCleanISSN');
if (!empty($issn)) {
$issnList = $this->wcUtils->getXISSN($issn);
foreach ($issnList as $current) {
$parts[] = 'issn:' . $current;
}
}
return $parts;
}
/**
* Support method to extract modified date from a record driver object.
*
* @param \VuFind\RecordDriver\AbstractBase $record Record to pull date from.
*
* @return int|DateTime|null
*/
protected function getDateModified($record)
{
// Best case -- "last indexed" date is available:
$date = $record->tryMethod('getLastIndexed');
if (!empty($date)) {
return strtotime($date);
}
// Next, try publication date:
$date = $record->tryMethod('getPublicationDates');
if (isset($date[0])) {
// Extract first string of numbers -- this should be a year:
preg_match('/[^0-9]*([0-9]+).*/', $date[0], $matches);
$date = new DateTime();
$date->setDate($matches[1], 1, 1);
return $date;
}
// If we got this far, no date is available:
return null;
}
