Topic on Project:Support desk

Using Wikibase on third-party wikis can be a problem if you run php_fpm in a chroot jail. Make sure DNS works inside the chroot.

Hi,

I'm trying to use Wikibase on my pool wiki and language wikis.

In my pool wiki, I can create properties and items, but I can't add site links to them. ID: "Q1", site id: "cswiki", site link: "article name" gives me the error "The specified article could not be found on the corresponding site." even though that article exists on cswiki.

I also can't access data from the language wikis. If I use {{#property:P1}} in an article on cswiki, nothing shows up.

I downloaded Wikidata-refs-heads-master.tar.gz and extracted it to the extension folder of my pool wiki and language wikis.

My LocalSettings.php of the pool wiki looks like this:

# Wikibase
$wgEnableWikibaseRepo = true;
$wgEnableWikibaseClient = false;
$wmgUseWikibaseRepo = true;
$wmgUseWikibaseClient = false;
require_once __DIR__ . "/extensions/Wikidata/Wikidata.php";
require_once __DIR__ .
"/extensions/Wikidata/extensions/Wikibase/repo/ExampleSettings.php";

# SiteMatrix Extension
require_once "$IP/extensions/SiteMatrix/SiteMatrix.php";
$wgLocalDatabases = array( 'cswiki', 'dewiki', 'enwiki', 'eswiki',
'frwiki', 'huwiki', 'hywiki', 'itwiki', 'nlwiki', 'plwiki', 'poolwiki',
'ptwiki', 'ruwiki', 'srwiki', 'svwiki' );

My LocalSettings.php of the language wikis (cs for example) look like this:

# Wikibase Extension
$wgEnableWikibaseRepo = false;
$wgEnableWikibaseClient = true;
$wmgUseWikibaseRepo = false;
$wmgUseWikibaseClient = true;
require_once __DIR__ . "/extensions/Wikidata/Wikidata.php";

# Settings
$wgWBSettings['repoUrl'] = 'http://pool.mypedia.com';
$wgWBSettings['repoScriptPath'] = '/w';
$wgWBSettings['repoArticlePath'] = '/wiki/$1';
$wgWBSettings['siteGlobalID'] = 'cswiki';
$wgWBSettings['repoDatabase'] = 'poolwiki';
$wgWBSettings['changesDatabase'] = 'poolwiki';

# Optional
$wgWBSettings['siteGroup'] = 'mypedia';
$wgWBSettings['sort'] = 'code'; //optional
$wgWBSettings['sortPrepend'] = array(
        'cs'
);

In populateSitesTable.php, I changed "https://meta.wikimedia.org/w/api.php" to "http://pool.mypedia.com/w/api.php" and "$validGroups = array( 'wikipedia', 'wikivoyage', 'wikiquote', 'wiktionary','wikibooks', 'wikisource', 'wikiversity', 'wikinews' );" to "$validGroups = array( 'mypedia' );"

Do I need to change "$wikiId = $this->getOption( 'wiki' );" too, since it says "wiki" is expanded to "wikipedia"?

Table "sites" in the poolwiki database looks like this:

site_id | site_global_key | site_type | site_group | site_source | site_language | site_protocol | site_domain | site_data | site_forward | site_config

1 | cswiki | mediawiki | mypedia | local | cs | http:// | com.mypedia.cs. | a:1:{s:5:"paths";a:2:{s:9:"file_path";s:5:"/w/$1";s:9:"page_path";s:8:"/wiki/$1";}} | 0 | a:0:{}

[...]

15 | poolwiki | mediawiki | pool | local | en | http:// | com.mypedia.pool. | a:1:{s:5:"paths";a:2:{s:9:"file_path";s:5:"/w/$1";s:9:"page_path";s:8:"/wiki/$1";}} | 0 | a:0:{}

I changed site_group "wikipedia" to "mypedia" and added data for site_protocol and site_domain by hand.

I noticed that the script path is "/w/$1" here, while $wgScriptPath in LocalSettings.php is actually "/w", could that cause any problems?

And should I change site_group of the pool to mypedia like I did with the language wikis or isn't that necessary?

Wikibase DataModel 0.8, Wikibase Repository 0.5 alpha, WikibaseLib 0.5 alpha and Wikidata show up in Special:Version of the pool wiki.

Wikibase Client 0.5 alpha, Wikibase DataModel 0.8, WikibaseLib 0.5 alpha and Wikidata show up in Special:Version of the language wikis.

MediaWiki 1.23.0, PHP 5.3.27 (fpm-fcgi), MySQL 5.1.70-log.

Any help would be really appreciated!

Thanks and cheers,

Hi,

for my own Wikibase repository to work on my third party wikis, do I need to set site_source in sites table to local on the repository database and to the database name of the repository in the client databases?

Thanks and cheers,

I'm now running MediaWiki 1.24.0. I can create items and properties in the repository but I can't add pages linked to an item. It always gives me the error "The specified article could not be found on the corresponding site. Details: The external client site did not provide page information".

On articles in the language wikis sometimes the "Add links" section appears, but if I click it to actually add some links, instantly "Error:" appears. On the page information it says "Datawiki item ID: None".

In the log files of the language wikis, the following entries show up:

[caches] main: MemcachedPhpBagOStuff, message: MemcachedPhpBagOStuff, parser: MemcachedPhpBagOStuff
Unstubbing $wgLang on call of $wgLang::unstub from Wikibase\Client\Hooks\SidebarHookHandlers::newFromGlobalState
[caches] LocalisationCache: using store LCStoreDB
Connected to database 0 at 12.34.56.78
[Wikibase\Client\WikibaseClient] getSite: The configured local id cs does not match any local ID of site cswiki: array ()
[Wikibase\SettingsArray] getSetting: setting otherProjectsLinkswas given as a closure, resolve it to array ()
[Wikibase\LangLinkHandler] getEntityLinks: Looking for sitelinks defined by the corresponding item on the wikibase repo.
LoadBalancer::openForeignConnection: opened new connection for 0/poolwiki
LoadBalancer::reuseConnection: freed connection 0/poolwiki
[Wikibase\LangLinkHandler] getEntityLinks: No corresponding item found for My Article
[Wikibase\LangLinkHandler] getEntityLinks: Found 0 links.
LoadBalancer::openForeignConnection: reusing free connection 0/poolwiki
LoadBalancer::reuseConnection: freed connection 0/poolwiki
LoadBalancer::openForeignConnection: reusing free connection 0/poolwiki
LoadBalancer::reuseConnection: freed connection 0/poolwiki

[warning] Failed to map interlanguage prefix de to a global site ID. [Called from Wikibase\LangLinkHandler::localLinksToArray 
in /path/to/wiki/cs/w/extensions/Wikidata/extensions/Wikibase/client/includes/LangLinkHandler.php at line 350]

Any help is more than appreciated.

Thanks and cheers,

How did you solve this issue?

@Mika77, thanks for your question and sorry I didn't post my solution earlier. I had problems running Wikibase, because php_fpm was running in a chroot jail. That's why I also had trouble fetching image descriptions. Cheers!