/**
* @param array $simpleQueryParts
* eg. 'P1:Q2' OR 'P5:?'
*
* @return ItemId[]
*/
public function getItemIdsForSimpleQueryParts(array $simpleQueryParts)
{
if (empty($simpleQueryParts)) {
throw new InvalidArgumentException("Can't run a SPARQL query with no simple parts");
}
$queryBuilder = new QueryBuilder(array('prov' => 'http://www.w3.org/ns/prov#', 'wd' => 'http://www.wikidata.org/entity/', 'wdt' => 'http://www.wikidata.org/prop/direct/', 'p' => 'http://www.wikidata.org/prop/'));
$queryBuilder->select('?item');
foreach ($simpleQueryParts as $key => $simpleQueryPart) {
list($propertyIdString, $entityIdString) = explode(':', $simpleQueryPart);
if ($entityIdString == '?') {
$queryBuilder->where('?item', "wdt:{$propertyIdString}", '?' . str_repeat('z', $key));
} else {
$queryBuilder->where('?item', "wdt:{$propertyIdString}", "wd:{$entityIdString}");
}
}
return $this->getItemIdsFromQuery($queryBuilder->__toString());
}
