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fixed racecondition in caching translations for installs with multiple instances:

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do NOT use automatic callback to cache result, as installing languages in setup can create a racecondition, therefore only cache existing non-instance-specific translations, never cache nothing found === array(), instance-specific translations can and should always be cached!
This commit is contained in:
Ralf Becker 2011-11-30 09:22:04 +00:00
parent 65a729f157
commit becb6b44d6
1 changed files with 21 additions and 4 deletions
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21
phpgwapi/inc/class.translation.inc.php
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@ -256,8 +256,25 @@ class translation
{
//$start = microtime(true);
// for loginscreen we have to use a instance specific cache!
$loaded =& egw_cache::getCache(in_array($app,self::$instance_specific_translations) ? egw_cache::INSTANCE : egw_cache::TREE,
__CLASS__,$app.':'.$lang,array(__CLASS__,'load_app'),array($app,$lang));
$instance_specific = in_array($app,self::$instance_specific_translations);
$loaded =& egw_cache::getCache($instance_specific ? egw_cache::INSTANCE : egw_cache::TREE,
__CLASS__,$app.':'.$lang);
// do NOT use automatic callback to cache result, as installing languages in setup can create
// a racecondition, therefore only cache existing non-instance-specific translations,
// never cache nothing found === array(), instance-specific translations can and should always be cached!
//error_log(__METHOD__."('$app', '$lang') egw_cache::getCache() returned ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded)));
if (!$loaded && (!$instance_specific || is_null($loaded)))
{
error_log(__METHOD__."('$app', '$lang') egw_cache::getCache() returned ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded)));
$loaded =& self::load_app($app,$lang);
if ($loaded || $instance_specific)
{
error_log(__METHOD__."('$app', '$lang') caching now ".(is_array($loaded)?'Array('.count($loaded).')':array2string($loaded)));
egw_cache::setCache($instance_specific ? egw_cache::INSTANCE : egw_cache::TREE,
__CLASS__,$app.':'.$lang,$loaded);
}
}
// we have to use array_merge! (+= does not overwrite common translations with different ones in an app)
// array_merge messes up translations of numbers, which make no sense and should be avoided anyway.