/**
* @since 2.3
*
* @param integer $queryFeatureFlag
*
* @return boolean
*/
public function canUseQFeature($queryFeatureFlag)
{
$canUse = true;
// Adhere additional condition
if ($queryFeatureFlag === SMW_SPARQL_QF_SUBP) {
$canUse = $this->engineOptions->get('smwgQSubpropertyDepth') > 0;
}
if ($queryFeatureFlag === SMW_SPARQL_QF_SUBC) {
$canUse = $this->engineOptions->get('smwgQSubcategoryDepth') > 0;
}
return $this->engineOptions->get('smwgSparqlQFeatures') === ($this->engineOptions->get('smwgSparqlQFeatures') | $queryFeatureFlag) && $canUse;
}
/**
* Get a SPARQL option array for the given query.
*
* @param Query $query
* @param Condition $compoundCondition (storing order by variable names)
*
* @return array
*/
protected function getOptions(Query $query, Condition $compoundCondition)
{
$result = array('LIMIT' => $query->getLimit() + 1, 'OFFSET' => $query->getOffset());
// Build ORDER BY options using discovered sorting fields.
if ($this->engineOptions->get('smwgQSortingSupport')) {
$orderByString = '';
foreach ($query->sortkeys as $propkey => $order) {
if (!is_string($propkey)) {
throw new RuntimeException("Expected a string value as sortkey");
}
if ($order != 'RANDOM' && array_key_exists($propkey, $compoundCondition->orderVariables)) {
$orderByString .= "{$order}(?" . $compoundCondition->orderVariables[$propkey] . ") ";
} elseif ($order == 'RANDOM' && $this->engineOptions->get('smwgQRandSortingSupport')) {
// not supported in SPARQL; might be possible via function calls in some stores
}
}
if ($orderByString !== '') {
$result['ORDER BY'] = $orderByString;
}
}
return $result;
}
public function testUnregisteredKeyThrowsException()
{
$instance = new EngineOptions();
$this->setExpectedException('InvalidArgumentException');
$instance->get('Foo');
}
