Re: HERE'S HOW: distinguish old archives from keyed archives
Re: HERE'S HOW: distinguish old archives from keyed archives
- Subject: Re: HERE'S HOW: distinguish old archives from keyed archives
- From: Chris Kane <email@hidden>
- Date: Mon, 1 Sep 2003 19:57:04 -0700
On Aug 31, 2003, at 9:25 PM, Drew McCormack wrote:
First of all, IMHO, you should be using a different file extension
for a new document format which is keyed-archiving-based rather than
old-archiving-based. It's a different file format after all. But
most of you won't listen to that advice.
I considered this option, and wanted to implement it, but couldn't
figure out a nice way to do it. I don't want my users to notice that
anything has changed. So they open an old format file called
foo.tsdoc, but when they save this, it should be renamed to
foo.tsdoc1, for example. I guess you have to call "setFileName:" after
loading. Is that right?
The other thing is, when I tested this idea, the type passed to my
load... method did not seem to correspond to the document type I had
set for the extension of the file. Could this be because I didn't log
out or restart?
On NSDocument questions, I have no idea.
If you convert the user's document for them, regardless of whether you
change the extension or not, you may want to give them a warning,
because the document will no longer be readable, presumably, in older
versions of your app.
Chris Kane
Cocoa Frameworks, Apple
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