[Typo3-dev] User extension of class.t3lib_div.php

[Martin Kutschker]

Date: Wed, 03 Sep 2003 02:56:35 +0200
From: Kasper Skârhoj <kasper at typo3.com>
To: typo3-dev at lists.netfielders.de

> It would be quite easy to make a search/replace on t3lib_div:: to
> $GLOBALS['DIV']->
>
> (and for other classes as well) but what is the performance loss ? ( if
> any) - and it is also uglier.
>
> But it would be backwards compatible!

Wouldn't you have to change all the functions in class.t3lib_div.php

> We can discuss later this month.

Sure, but just an idea before I forget it. The archive may serve as my memory :-)

How about changing the static classes into singletons? Unlike the straightforward instance in $DIV we don't introduce a number of globals. The 'real' objects would be static members of the factory.

So you'd have a $div = t3lib_div::getInstance() at the top of the code, followed by $div->some_func() etc. But of, course this is also not backwards compatible.

A more backward compatible idea is to make class.t3lib_div.php a kind of wrapper which includes its fucntions. At the the beginning of the file some code would decide whether to include the default code or some extension code.

A note on all this schemes:

An extension might only change one function. And more than one extension may provide new functions.

None of the solutions so far addreess these problems.

Regards,
Masi