Extension talk:Data

From MediaWiki.org

$wgHooks['LanguageGetMagic'][] = 'wfDataLanguageGetMagic';

function wfDataLanguageGetMagic( &$magicWords, $langCode ) {
    switch ( $langCode ) {
        default:
            $magicWords['data']          = array( 0, 'data' );
            $magicWords['sort']          = array( 0, 'sort' );
    }
    return true;
}

[edit] Added default handling

Hi!

I just want to inform you that I have added the handling of defaults to the get function, so that one can use constructs like

{{#data:key|default}}

which will output "default" if key is not set. I have made it such, that it looks like parameter references in templates

{{{paramname|default}}}

I noticed that I needed this functionality pretty often, and that it can replace the somewhat lengthy

{{#if:{{#data:item->key}}|{{#data:item->key}}|default}}

If you want to include this functionality into the extension, just go ahead. Here is the modified "get" function:

function get(&$parser,$desc="",$default="") {
  list($lang,$item,$key)=$this->parseDesc($desc);
  if($key=="")
     return $item;
#echo "$lang|$item|$key";
  $res=mysql_query("SELECT `value` FROM data_extension WHERE `item`='".
                   mysql_real_escape_string($item).
                   "' AND `key`='".
                   mysql_real_escape_string($key)."'");
  $res=mysql_fetch_row($res);
  $r=$res[0];
  if ($r=="") $r=$default;
  return array($r,"noparse"=>TRUE);
}

Cheers --141.2.138.89 16:27, 6 November 2007 (UTC) (de:Benutzer:olenz)

[edit] PHP failing

Just downloaded the code from the 3 Feb update. I get the following error (twice) when I load any wiki page

Warning: array_slice() [function.array-slice]: The first argument should be an array in /var/www/wikijfh/languages/Language.php on line 1153

Noted that an extra piece of code (function wfDataLanguageGetMagic) is recommended and included in the latest version, except for the line

$wgHooks['LanguageGetMagic'][] = 'wfDataLanguageGetMagic';

I get the error with and without this extra line. I have created the required table in wikidb. My LocalSettings includes the following lines

include("extensions/Expr.php");
include("extensions/ParserFunctions.php");
include("extensions/Data.php");

Ideas ???

The line is there, fourth line of code in wfDataExtension() function. But something weird is going on. Try moving data extension to the top of your list of extensions (including it before any other extension), see if that works. Alternarively, you could add a @ at the beginning of the line 1153 in languages/Language.php . Nikola Smolenski 09:32, 9 February 2008 (UTC)