Last modified: 2014-05-05 13:10:02 UTC
Everytime when I run refreahLinks.php without any options, the complete semantic data from SMW is destroyed in the database (not on the pages). The complete Attributes are destroyed, and semantic querys leats to no results. After editing and safing a random page, the semantic data of this single random page is recovered. This is working with every page. I have figured out the following: when I comment out the line ~244 in refreshLinks.php $updates = $content->getSecondaryDataUpdates( $page->getTitle()); the semantic data is not destroyed. -> https://github.com/wikimedia/mediawiki-core/blob/master/maintenance/refreshLinks.php Also I have figured out that inside the RefreshLinksJob.php there is a very similar function in line 172 $updates = $content->getSecondaryDataUpdates( $title, null, false, $parserOutput ); with much more source code in front. https://doc.wikimedia.org/mediawiki-core/master/php/html/RefreshLinksJob_8php_source.html I have the feeling this second script is the one that runs after a single page edit with saving. This one seems to work fine. Am I right? What can I do to fix the problem?
(In reply to Ekim from comment #0) > Everytime when I run refreahLinks.php without any options, the complete > semantic data from SMW is destroyed in the database (not on the pages). Where exactly (tables etc.) is semantic data stored by SMW? > The complete Attributes are destroyed Is that a table created by SMW? > and semantic querys leats to no results. Any example query?
(In reply to Andre Klapper from comment #1) > (In reply to Ekim from comment #0) > > Everytime when I run refreahLinks.php without any options, the complete > > semantic data from SMW is destroyed in the database (not on the pages). > > Where exactly (tables etc.) is semantic data stored by SMW? > SMW is storing the data in a MySQL database. > > The complete Attributes are destroyed > > Is that a table created by SMW? Attributes is this case are exclusive for SMW. > > > and semantic querys leads to no results. > > Any example query? [[Is Member of Organisation::Coca Cola]] entered in the Special pages SMW-Query. leads normaly to the result that all (in this wiki stored) employees of "Coca Cola" will be listed. I also figured out, that the bug must have to do something with the usage of templates. Every semantic data, defined directly on a page is not affected, only the semantic data that is entered through a template (this is my case) will be destroyed through refreshLinks.php
Its probably caused by the line: $wgParser->clearTagHooks(); (line 79 of refreshLinks.php) Which is probably somewhat misguided as some hooks are important (This has caused bugs on Wikimedia wikis in the past). I would say we should get rid of that line and instead make extensions implement the MaintenanceRefreshLinksInit where it is appropriate.
Actually, I wouldn't expect that to affect link annotation syntax (since that's from a InternalParseBeforeLinks hook), but it would affect any {{#foo type syntax. Don't know much about SMW though.
I have some more informations: If I change this line in my template: [[ist member of organization::{{{organization|}}}]] to [[is member of organization::coca cola]] Every page with a Person using the template is now member of Coca Cola and refreshLinks.php is not affecting this. For me it seems to be a problem of the ??Parser?? who must replace {{{organization}}} (but dont do it right) before Evaluation? Additional: If I run a SMW-Query from the Special-page lige theese: [[is member of organization::{{{organization|}}}]] [[is member of organization::{{{organization}}}]] [[is member of organization::{{organization}}]] [[is member of organization::organization]] Shows no result, so something is replaced for {{{Organisation|}}} but what?
>{{{Organisation|}}} Is replaced by an empty string if no Organisation parameter specified...
Yes, but in my case organization is getting a valid Parameter. By the way, I have replaced [[is member of organization::{{{organization|}}}]] with {{#set:is member of organization={{{organization}}}}} {{{organization}}} To avoid a link. But I get the same results in destroying semantic data through refreshLinks.php Additional: In Specialpages:Properties I can see some results like this: Jim Beam + <tplarg><title>Organization</title><part><Name index="1"/><value/></part></tplarg> or
it might help if someone adds a few of the semantic people onto the cc list
(In reply to p858snake from comment #8) > it might help if someone adds a few of the semantic people onto the cc list Adding Markus and Jeroen.
