Re: [Semediawiki-user] Problem setting up SparqlExtension

[LyleC <lyl...@ho...>]

After installing SparqlExtension v0.7 and running the Joseki server, I got
the following error in Mediawiki:

 Magic word 'twinkle' not found

Backtrace:

#0 G:\xampp\htdocs\wiki\includes\MagicWord.php(257):
Language->getMagic(Object(MagicWord))
#1 G:\xampp\htdocs\wiki\includes\MagicWord.php(206):
MagicWord->load('twinkle')
#2 G:\xampp\htdocs\wiki\includes\parser\Parser.php(4039):
MagicWord::get('twinkle')
#3 G:\xampp\htdocs\wiki\extensions\SparqlExtension\SparqlExtension.php(86):
Parser->setFunctionHook('twinkle', 'Sparql_ParserFu...')
#4 G:\xampp\htdocs\wiki\includes\Hooks.php(117):
Sparql_ParserFunctionSetup(Object(Parser))
#5 G:\xampp\htdocs\wiki\includes\parser\Parser.php(178): wfRunHooks()
#6 G:\xampp\htdocs\wiki\includes\MessageCache.php(659):
Parser->firstCallInit('Sparql_ParserFu...', Array)
#7 G:\xampp\htdocs\wiki\includes\GlobalFunctions.php(600):
MessageCache->transform('ParserFirstCall...', Array)
#8 G:\xampp\htdocs\wiki\includes\GlobalFunctions.php(563): wfMsgGetKey()
#9 G:\xampp\htdocs\wiki\includes\GlobalFunctions.php(469): wfMsgReal('$1 -
{{SITENAME...')
#10 G:\xampp\htdocs\wiki\includes\OutputPage.php(325): wfMsg()
#11 G:\xampp\htdocs\wiki\includes\SpecialPage.php(750):
OutputPage->setPageTitle('pagetitle', true, false, true)
#12
G:\xampp\htdocs\wiki\extensions\SparqlExtension\SparqlExtension_body.php(47):
SpecialPage->setHeaders('pagetitle', Array, true)
#13 G:\xampp\htdocs\wiki\includes\SpecialPage.php(559):
SparqlExtension->execute('pagetitle', 'SparqlExtension')
#14 G:\xampp\htdocs\wiki\includes\Wiki.php(229):
SpecialPage::executePath('SparqlExtension')
#15 G:\xampp\htdocs\wiki\includes\Wiki.php(59):
MediaWiki->initializeSpecialCases()
#16 G:\xampp\htdocs\wiki\index.php(116): MediaWiki->initialize(NULL)
#17 {main}

My components and versions:
MediaWiki 1.15.1
PHP 5.2.8 (apache2handler)
MySQL 5.1.30-community
Data Import Extension (Version 1.4.0_3)
ScriptManager Extension (Version 1.0.0_0)
Semantic MediaWiki (Version 1.5.1_1)
SMWHalo Extension (Version 1.5.1_4-for-SMW-1.5.1 [B36])
IAI (Version 0.1)
Semantic Gardening extension v1.3.2_1


Solution
Turns out the problem was related to the way that SparqlExtension v0.7 hooks
into SMW...

Here is what I needed to do to make this work for me:

1. In the file ./extensions/SparqlExtension/SparqlExtension.php
2. locate function Sparql_Setup()
3. locate the lines:
   $wgHooks["ParserFirstCallInit"][] = "Sparql_ParserFunctionSetup";
   $wgHooks['LanguageGetMagic'][]    = "Sparql_ParserFunctionMagic";
4. Replace them with the following lines:
   global $wgParser;
   $wgParser->setHook("ParserFirstCallInit","Sparql_ParserFunctionSetup");
   $wgParser->setHook( "LanguageGetMagic", "Sparql_ParserFunctionMagic" );
5. Pat yourself on the back.

For the less initiated, I have attached the updated SparqlExtension.php file
that can be dropped in to replace the original in the
./extensions/SparqlExtension/ folder.


Cheers,


LyleC.
http://old.nabble.com/file/p30163939/SparqlExtension.php SparqlExtension.php 
-- 
View this message in context: http://old.nabble.com/SparqlExtension-0.7-released-tp29678735p30163939.html
Sent from the Semantic Mediawiki - User mailing list archive at Nabble.com.