/**
* Return an SMWDataValue object for the next SMWDataItem object or
* false if no further object exists.
*
* @since 1.6
*
* @return SMWDataValue|false
*/
public function getNextDataValue()
{
$dataItem = $this->getNextDataItem();
if ($dataItem === false) {
return false;
}
if ($this->mPrintRequest->getMode() == PrintRequest::PRINT_PROP && strpos($this->mPrintRequest->getTypeID(), '_rec') !== false && $this->mPrintRequest->getParameter('index') !== false) {
$recordValue = DataValueFactory::getInstance()->newDataValueByItem($dataItem, $this->mPrintRequest->getData()->getDataItem());
$diProperty = $recordValue->getPropertyDataItemByIndex($this->mPrintRequest->getParameter('index'));
} elseif ($this->mPrintRequest->isMode(PrintRequest::PRINT_PROP)) {
$diProperty = $this->mPrintRequest->getData()->getDataItem();
} elseif ($this->mPrintRequest->isMode(PrintRequest::PRINT_CHAIN)) {
$diProperty = $this->mPrintRequest->getData()->getLastPropertyChainValue()->getDataItem();
} else {
$diProperty = null;
}
// refs #1314
if ($this->mPrintRequest->getMode() == PrintRequest::PRINT_PROP && strpos($this->mPrintRequest->getTypeID(), '_txt') !== false && $dataItem instanceof DIBlob) {
$dataItem = new DIBlob(InTextAnnotationParser::removeAnnotation($dataItem->getString()));
}
$dataValue = DataValueFactory::getInstance()->newDataValueByItem($dataItem, $diProperty);
$dataValue->setContextPage($this->mResult);
if ($this->mPrintRequest->getOutputFormat()) {
$dataValue->setOutputFormat($this->mPrintRequest->getOutputFormat());
}
if ($this->entityListAccumulator !== null && $dataItem instanceof DataItem) {
$this->entityListAccumulator->addToEntityList($dataItem, $diProperty);
}
return $dataValue;
}
/**
* Load results of the given print request and result subject. This is only
* done when needed.
*/
protected function loadContent()
{
if ($this->mContent !== false) {
return;
}
switch ($this->mPrintRequest->getMode()) {
case PrintRequest::PRINT_THIS:
// NOTE: The limit is ignored here.
$this->mContent = array($this->mResult);
break;
case PrintRequest::PRINT_CATS:
// Always recompute cache here to ensure output format is respected.
self::$catCache = $this->mStore->getPropertyValues($this->mResult, new SMWDIProperty('_INST'), $this->getRequestOptions(false));
self::$catCacheObj = $this->mResult->getHash();
$limit = $this->mPrintRequest->getParameter('limit');
$this->mContent = $limit === false ? self::$catCache : array_slice(self::$catCache, 0, $limit);
break;
case PrintRequest::PRINT_PROP:
$propertyValue = $this->mPrintRequest->getData();
if ($propertyValue->isValid()) {
$this->mContent = $this->mStore->getPropertyValues($this->mResult, $propertyValue->getDataItem(), $this->getRequestOptions());
} else {
$this->mContent = array();
}
// Print one component of a multi-valued string.
// Known limitation: the printrequest still is of type _rec, so if printers check
// for this then they will not recognize that it returns some more concrete type.
if (strpos($this->mPrintRequest->getTypeID(), '_rec') !== false && $this->mPrintRequest->getParameter('index') !== false) {
$pos = $this->mPrintRequest->getParameter('index') - 1;
$newcontent = array();
foreach ($this->mContent as $diContainer) {
/* SMWRecordValue */
$recordValue = \SMW\DataValueFactory::getInstance()->newDataItemValue($diContainer, $propertyValue->getDataItem());
$dataItems = $recordValue->getDataItems();
if (array_key_exists($pos, $dataItems) && !is_null($dataItems[$pos])) {
$newcontent[] = $dataItems[$pos];
}
}
$this->mContent = $newcontent;
}
break;
case PrintRequest::PRINT_CCAT:
///NOTE: The limit is ignored here.
if (self::$catCacheObj != $this->mResult->getHash()) {
self::$catCache = $this->mStore->getPropertyValues($this->mResult, new SMWDIProperty('_INST'));
self::$catCacheObj = $this->mResult->getHash();
}
$found = false;
$prkey = $this->mPrintRequest->getData()->getDBkey();
foreach (self::$catCache as $cat) {
if ($cat->getDBkey() == $prkey) {
$found = true;
break;
}
}
$this->mContent = array(new SMWDIBoolean($found));
break;
default:
$this->mContent = array();
// Unknown print request.
}
reset($this->mContent);
}
private function isMultiValueWithParameter($parameter)
{
return strpos($this->printRequest->getTypeID(), '_rec') !== false && $this->printRequest->getParameter($parameter) !== false;
}
