[TYPO3-core] RFC: Bug #9217: typo3ajax::renderAsXML does not always render XML

[Benjamin Mack]

Hey,

Francois Suter wrote:
> ...so I would rather not be backwards-compatible. But I guess that will 
> have to wait for Benni's opinion.
I don't like adding a new interface and then changing it in the next 
version.

I'd propose this one:

* For 4.3 add the option with both possibilities, make this option 
deprecated though. In addition, make all BE-AJAX-Calls in the Core set 
up with the new version (a lot of people take the core for reference on 
how to write AJAX calls in the BE)
* In 4.5 remove the old option.

Think of people who write AJAX extensions for TYPO3. They'd need to 
provide different code for their extension to return on a AJAX call for 
4.1, 4.2 and 4.3. That must stink.

Another option that just comes to my mind:
* Actually wrap the whole thing in a type of <t3ajax> tag, because we 
need a "document" for the XML that is returned from the AJAX call to 
properly process the code, so the array2xml does not give us one main 
"document" root node when returning. For this case, we really should 
break compatibility (although I really don't like that).

-- 
All the best,
benni.
-SDG-