Hi Ted, On 3 Dec 2015, at 9:47 pm, Theodore Petrosky <[email protected]> wrote:
> Would it be better to not delete the Job, but instead mark it isDeleted=true. > then you have the best of both worlds? Say that we did that. > You could also ask the system, Show me all the deleted Jobs. Then say that we did that—one display group for active Jobs, another for deleted Jobs. Now what we’ve got is a minimal variation on what I described: >> Is that the best I can do? In this slightly abridged scenario, the Job got >> deleted, and that was the only action available, so the informational >> message can say “The selected Job was already deleted”. But all I really >> know is that the Job is no longer where it once was in >> displayedObjects()—right? Say it just got moved by that action method above— Say, indeed, that user A caused J1.isDeleted to now be true. Assume that the display group of interest shows non-deleted Jobs (for which isDeleted() returns false), and B still sees J1 on it. We’re back to square one, because J1 has still been _moved out of_ that display group (because it no longer matches the qualifier on isDeleted). At this point, we’re back at the original question: >> is there any way to retrieve J1 when user B hits that method? (I’m not >> convinced you’d want that in every case, or even many cases, because the >> selection has been made based on stale data in front of user B. Let’s just >> consider this a thought experiment.) Finally: > Doesn’t it also imply that you could have 10 users delete the same stale data > on their screen, with no badness. So what if 10 users mark a record > isDeleted=true. That’s not the problem here. The problem (within the constraints that I’ve set up) is that the first user can do that, but the remaining nine _can’t find the object they select_. -- Paul Hoadley http://logicsquad.net/ _______________________________________________ Do not post admin requests to the list. They will be ignored. Webobjects-dev mailing list ([email protected]) Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com This email sent to [email protected]
