Re: [SMW-devel] How to create a SMWQueryProcessor - Query

[Marco M. <ma...@fz...>]

Thanks! You really made my day, as I've been digging in the documemtation
over and over again. Unfortunatedly the documentation at
http://www.semantic-mediawiki.org/doc/classSMWPrintRequest.html is not clear
on the parameter's datatypes.

Anyway: It seems to work now. 

Thanks again,

Marco

-----Original Message-----
From: Stephan Robotta [mailto:ro...@on...] 
Sent: Thursday, February 11, 2010 10:02 AM
To: sem...@li...
Subject: Re: [SMW-devel] How to create a SMWQueryProcessor - Query

Hi,

change the line:
$printouts[] = new SMWPrintRequest(SMWPrintRequest::PRINT_PROP, 'has
Connection', 'has Connection');
into:
$printouts[] = new SMWPrintRequest(SMWPrintRequest::PRINT_PROP, 'has
Connection', SMWPropertyValue::makeUserProperty('has Connection'));

That should do it.

Best regards, Stephan

On Thu, Feb 11, 2010 at 12:09:14AM +0100, Marco Mauritczat wrote:
> Hi
> 
> I've been experimenting with the PHP-API and looked into the SMW-Code for
> the last two days. I've been trying to create a Query, wich queries for
> pages inside the Category: Computer and displays their property called
"has
> Connection" like this:
> 
> $query = '[[Category:Computer]]';
> $printouts[] = new SMWPrintRequest(SMWPrintRequest::PRINT_PROP, 'has
> Connection', 'has Connection');
> $queryobj = SMWQueryProcessor::createQuery($query, $params,
> SMWQueryProcessor::SPECIAL_PAGE, $params['format'], $printouts);
> $queryResult = smwfGetStore()->getQueryResult($queryobj);
> 
> Unfortunatedly I keep getting an error:
> Catchable fatal error: Argument 2 passed to
> SMWSQLStore2::getPropertyValues() must be an instance of SMWPropertyValue,
> string given, called in
>
/var/www/mw/extensions/SemanticMediaWiki/includes/storage/SMW_SQLStore2_Quer
> ies.php on line 315 and defined in
>
/var/www/mw/extensions/SemanticMediaWiki/includes/storage/SMW_SQLStore2.php
> on line 338
> 
> I reckon that I'm getting something fundamentally wrong. If anyone could
> give me a hint it would be very appreciated.
> 
> Thanks
> Marco
> 
> --
> Marco Mauritczat
> Webadministration Rechner- und Datenkommunikation (RuD)
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> E-Mail: ma...@fz...
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