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BUGFIX Making $_SINGLETONS a global instead of a static in Core.php so it can be re-used in other places

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git-svn-id: svn://svn.silverstripe.com/silverstripe/open/modules/sapphire/trunk@73883 467b73ca-7a2a-4603-9d3b-597d59a354a9
This commit is contained in:
Ingo Schommer 2009-03-31 19:32:19 +00:00
parent 697703aff8
commit 23fc9380f2
1 changed files with 13 additions and 1 deletions
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14
core/Core.php
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@ -255,8 +255,20 @@ function getClassFile($className) {
if($_CLASS_MANIFEST[$className]) return $_CLASS_MANIFEST[$className];
}
/**
* Creates a class instance by the "singleton" design pattern.
* It will always return the same instance for this class,
* which can be used for performance reasons and as a simple
* way to access instance methods which don't rely on instance
* data (e.g. the custom SilverStripe static handling).
*
* @uses Object::strong_create()
*
* @param string $className
* @return Object
*/
function singleton($className) {
static $_SINGLETONS;
global $_SINGLETONS;
if(!isset($className)) user_error("singleton() Called without a class", E_USER_ERROR);
if(!is_string($className)) user_error("singleton() passed bad class_name: " . var_export($className,true), E_USER_ERROR);
if(!isset($_SINGLETONS[$className])) {