I'm working on using the SMWquery object to do queries on properties. The
queries on single properties is working fine for the various property types.
Moving on to do queries on 2 properties doesn't seem to work as I expected.
Using [0] and the Semantic MediaWiki API documentation [1] as a references, I
am have the following PHP snippet:
====
$numberValue = new SMWNumberValue('number');
$numberValue->setUserValue('700');
$description = new SMWValueDescription($numberValue);
$property = SMWPropertyValue::makeProperty('EngageContainerType');
$containerDescription = new SMWSomeProperty($property, $description);
$wikiPage = SMWWikiPageValue::makePage('Engage_Thread', NS_MAIN);
$description2 = new SMWValueDescription($wikiPage);
$property2 = SMWPropertyValue::makeProperty('EngageObject');
$objectDescription = new SMWSomeProperty($property2, $description2);
$queryDescription = new SMWConjunction(array($containerDescription,
$objectDescription));
$query = new SMWQuery($queryDescription);
$result = $this->store->getQueryResult($query);
$this->printResult($result->getResults());
====
that reports -> Fatal error: Call to a member function getQueryResult() on a
non-object
on line -> $result = $this->store->getQueryResult($query);
If I code them up as separate queries they work just fine. I am sure it's
pilot error but reviewing [1] hasn't helped as of yet. SMH...
[0] http://www.semantic-mediawiki.org/wiki/User:Ganqqwerty/programming_examples
[1] http://semantic-mediawiki.org/doc/
Any guidance or suggestions would be greatly appreciated.
cheers
Pete Schott
Research Engineer
Alcatel-Lucent Bell Laboratories
Application Research - Intuitive Collaboration Department
office: 908.582.8163
mobile: 908.745.8230
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