On Jan 28, 2008, at 11:47 AM, Mike Schrag wrote:

Having NSTimestampFormatter as a "symbol translating sub-class" would ease the pain of transition for many.
Yeah, this is what I'm proposing as well ... I feel Pierre's pain with not wanting to rewrite and maintain deprecated code, but I fear WO becoming what everyone hates about Tapestry, which is that it goes through huge breaking revisions every release. There is a large base of legacy apps, and especially if there are relatively straightforward deprecation routes, it would be better to not break than to break, I think (this is obviously subject to a religious debate, I suspect).

I have pretty strong feelings about this as well. One of things that Apple has historically done very well is to make moving from one version to another pretty painless. The old way still works, the new way works better. The only painful migration I recall was from Objective-C to Java and that was mostly language issues. The team did a lot of work to make it as painless as possible. Difficulty in moving between versions is going to have the opposite effect from what is desired. People will avoid updating and more and more people will be using older versions making it even more difficult to make changes.


I'm especially wary of breaking changes that just break semantics rather than syntax.

Yes, those can be hard to identify and fix.


In this case, it's breaking the interpretation of random strings inside of WODs, which will make for a really annoying fix. Alternatively, I suppose someone could write a conversion app to convert all the old style into new style, but that only partially addresses the issue.

Far better to have the class do this on the fly. It is the right thing to do.

Chuck

--

Practical WebObjects - for developers who want to increase their overall knowledge of WebObjects or who are trying to solve specific problems.
http://www.global-village.net/products/practical_webobjects





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