/**
* Render an HTML checkbox control for the current record.
*
* @param string $idPrefix Prefix for checkbox HTML ids
*
* @return string
*/
public function getCheckbox($idPrefix = '')
{
static $checkboxCount = 0;
$id = $this->driver->getResourceSource() . '|' . $this->driver->getUniqueId();
$context = ['id' => $id, 'count' => $checkboxCount++, 'prefix' => $idPrefix];
return $this->contextHelper->renderInContext('record/checkbox.phtml', $context);
}
/**
* 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->getResourceSource() == '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();
}
/**
* Get the previous/next record in the last search
* result set relative to the current one, also return
* the position of the current record in the result set.
* Return array('previousRecord'=>previd, 'nextRecord'=>nextid,
* 'currentPosition'=>number, 'resultTotal'=>number).
*
* @param \VuFind\RecordDriver\AbstractBase $driver Driver for the record
* currently being displayed
*
* @return array
*/
public function getScrollData($driver)
{
$retVal = ['previousRecord' => null, 'nextRecord' => null, 'currentPosition' => null, 'resultTotal' => null];
// Do nothing if disabled or data missing:
if ($this->enabled && isset($this->data->currIds) && isset($this->data->searchId) && ($lastSearch = $this->restoreLastSearch())) {
// Make sure expected data elements are populated:
if (!isset($this->data->prevIds)) {
$this->data->prevIds = null;
}
if (!isset($this->data->nextIds)) {
$this->data->nextIds = null;
}
// Store total result set size:
$retVal['resultTotal'] = isset($this->data->total) ? $this->data->total : 0;
// build a full ID string using the driver:
$id = $driver->getResourceSource() . '|' . $driver->getUniqueId();
// find where this record is in the current result page
$pos = is_array($this->data->currIds) ? array_search($id, $this->data->currIds) : false;
if ($pos !== false) {
// OK, found this record in the current result page
// calculate its position relative to the result set
$retVal['currentPosition'] = ($this->data->page - 1) * $this->data->limit + $pos + 1;
// count how many records in the current result page
$count = count($this->data->currIds);
if ($pos > 0 && $pos < $count - 1) {
// the current record is somewhere in the middle of the current
// page, ie: not first or last
return $this->scrollOnCurrentPage($retVal, $pos);
} else {
if ($pos == 0) {
// this record is first record on the current page
return $this->fetchPreviousPage($retVal, $lastSearch, $pos, $count);
} else {
if ($pos == $count - 1) {
// this record is last record on the current page
return $this->fetchNextPage($retVal, $lastSearch, $pos);
}
}
}
} else {
// the current record is not on the current page
// if there is something on the previous page
if (!empty($this->data->prevIds)) {
// check if current record is on the previous page
$pos = is_array($this->data->prevIds) ? array_search($id, $this->data->prevIds) : false;
if ($pos !== false) {
return $this->scrollToPreviousPage($retVal, $lastSearch, $pos);
}
}
// if there is something on the next page
if (!empty($this->data->nextIds)) {
// check if current record is on the next page
$pos = is_array($this->data->nextIds) ? array_search($id, $this->data->nextIds) : false;
if ($pos !== false) {
return $this->scrollToNextPage($retVal, $lastSearch, $pos);
}
}
}
}
return $retVal;
}
/**
* Get the previous/next record in the last search
* result set relative to the current one, also return
* the position of the current record in the result set.
* Return array('previousRecord'=>previd, 'nextRecord'=>nextid,
* 'currentPosition'=>number, 'resultTotal'=>number).
*
* @param \VuFind\RecordDriver\AbstractBase $driver Driver for the record
* currently being displayed
*
* @return array
*/
public function getScrollData($driver)
{
$retVal = array('previousRecord' => null, 'nextRecord' => null, 'currentPosition' => null, 'resultTotal' => null);
// Do nothing if disabled:
if (!$this->enabled) {
return $retVal;
}
if (isset($this->data->currIds) && isset($this->data->searchId)) {
// build a full ID string using the driver:
$id = $driver->getResourceSource() . '|' . $driver->getUniqueId();
// we need to restore the last search object
// to fetch either the previous/next page of results
$lastSearch = $this->restoreLastSearch();
// give up if we can not restore the last search
if (!$lastSearch) {
return $retVal;
}
if (!isset($this->data->prevIds)) {
$this->data->prevIds = null;
}
if (!isset($this->data->nextIds)) {
$this->data->nextIds = null;
}
$retVal['resultTotal'] = isset($this->data->total) ? $this->data->total : 0;
// find where this record is in the current result page
$pos = is_array($this->data->currIds) ? array_search($id, $this->data->currIds) : false;
if ($pos !== false) {
// OK, found this record in the current result page
// calculate it's position relative to the result set
$retVal['currentPosition'] = ($this->data->page - 1) * $this->data->limit + $pos + 1;
// count how many records in the current result page
$count = count($this->data->currIds);
// if the current record is somewhere in the middle of the current
// page, ie: not first or last, then it is easy
if ($pos > 0 && $pos < $count - 1) {
$retVal['previousRecord'] = $this->data->currIds[$pos - 1];
$retVal['nextRecord'] = $this->data->currIds[$pos + 1];
// and we're done
return $retVal;
}
// if this record is first record on the current page
if ($pos == 0) {
// if the current page is NOT the first page, and
// the previous page has not been fetched before, then
// fetch the previous page
if ($this->data->page > 1 && $this->data->prevIds == null) {
$this->data->prevIds = $this->fetchPage($lastSearch, $this->data->page - 1);
}
// if there is something on the previous page, then the previous
// record is the last record on the previous page
if (!empty($this->data->prevIds)) {
$retVal['previousRecord'] = $this->data->prevIds[count($this->data->prevIds) - 1];
}
// if it is not the last record on the current page, then
// we also have a next record on the current page
if ($pos < $count - 1) {
$retVal['nextRecord'] = $this->data->currIds[$pos + 1];
}
// and we're done
return $retVal;
}
// if this record is last record on the current page
if ($pos == $count - 1) {
// if the next page has not been fetched, then
// fetch the next page
if ($this->data->nextIds == null) {
$this->data->nextIds = $this->fetchPage($lastSearch, $this->data->page + 1);
}
// if there is something on the next page, then the next
// record is the first record on the next page
if (!empty($this->data->nextIds)) {
$retVal['nextRecord'] = $this->data->nextIds[0];
}
// if it is not the first record on the current page, then
// we also have a previous record on the current page
if ($pos > 0) {
$retVal['previousRecord'] = $this->data->currIds[$pos - 1];
}
// and we're done
return $retVal;
}
} else {
// the current record is not on the current page
// if there is something on the previous page
if (!empty($this->data->prevIds)) {
// check if current record is on the previous page
$pos = is_array($this->data->prevIds) ? array_search($id, $this->data->prevIds) : false;
if ($pos !== false) {
// decrease the page in the session because
// we're now sliding into the previous page
// (-- doesn't work on ArrayObjects)
$this->data->page = $this->data->page - 1;
// shift pages to the right
$tmp = $this->data->currIds;
$this->data->currIds = $this->data->prevIds;
$this->data->nextIds = $tmp;
$this->data->prevIds = null;
// now we can set the previous/next record
if ($pos > 0) {
$retVal['previousRecord'] = $this->data->currIds[$pos - 1];
}
$retVal['nextRecord'] = $this->data->nextIds[0];
// recalculate the current position
$retVal['currentPosition'] = ($this->data->page - 1) * $this->data->limit + $pos + 1;
// update the search URL in the session
$lastSearch->getParams()->setPage($this->data->page);
$this->rememberSearch($lastSearch);
// and we're done
return $retVal;
}
}
// if there is something on the next page
if (!empty($this->data->nextIds)) {
// check if current record is on the next page
$pos = is_array($this->data->nextIds) ? array_search($id, $this->data->nextIds) : false;
if ($pos !== false) {
// increase the page in the session because
// we're now sliding into the next page
// (++ doesn't work on ArrayObjects)
$this->data->page = $this->data->page + 1;
// shift pages to the left
$tmp = $this->data->currIds;
$this->data->currIds = $this->data->nextIds;
$this->data->prevIds = $tmp;
$this->data->nextIds = null;
// now we can set the previous/next record
$retVal['previousRecord'] = $this->data->prevIds[count($this->data->prevIds) - 1];
if ($pos < count($this->data->currIds) - 1) {
$retVal['nextRecord'] = $this->data->currIds[$pos + 1];
}
// recalculate the current position
$retVal['currentPosition'] = ($this->data->page - 1) * $this->data->limit + $pos + 1;
// update the search URL in the session
$lastSearch->getParams()->setPage($this->data->page);
$this->rememberSearch($lastSearch);
// and we're done
return $retVal;
}
}
}
}
return $retVal;
}
