Thank you all for these wise words. I'll make the appropriate changes. Cheers,
Martin On 23, Jun, 2012, at 08:01 PM, Jeff Kelley wrote: > Martin, > > Instead of inspecting the value of error, you should be inspecting the > return value of writeToURL:atomically:encoding:error:. Only if that returns > NO should you be inspecting the value of error which, as you’ve seen, may be > non-nil on success. You can see an example here: > > https://developer.apple.com/library/mac/documentation/Cocoa/Conceptual/Strings/Articles/readingFiles.html#//apple_ref/doc/uid/TP40003459-SW5 > > Jeff Kelley > > On Jun 23, 2012, at 1:50 PM, Martin Hewitson wrote: > >> Dear list, >> >> I have an interesting bug report from a user of an app of mine. The app >> manages files and allows the user to edit them. When they save the project >> each file is saved to disk (if necessary). They are experiencing what >> appears to be a false positive of writeToURL:atomically:encoding:error:. The >> file actually does save, but the error comes back non-nil and when presented >> says: >> >> "You don’t have permission to save the file “XXX” in the folder “YYY”. >> >> The piece of code I use is >> >> NSError *error = nil; >> [content writeToURL:aURL atomically:YES encoding:encoding error:&error]; >> if (error) { >> [NSApp presentError:error]; >> return NO; >> } >> >> By giving the user a debug version of the app with lots of NSLog statements, >> we narrowed it down to the above code. So even though the file is saved, >> 'error' comes back non-nil. >> >> Has anyone seen such behaviour before, or does anyone have any idea how to >> further investigate this? >> >> Best wishes, >> >> Martin >> >> >> >> >> _______________________________________________ >> >> Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) >> >> Please do not post admin requests or moderator comments to the list. >> Contact the moderators at cocoa-dev-admins(at)lists.apple.com >> >> Help/Unsubscribe/Update your Subscription: >> https://lists.apple.com/mailman/options/cocoa-dev/slaunchaman%40gmail.com >> >> This email sent to slauncha...@gmail.com > ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ Martin Hewitson Albert-Einstein-Institut Max-Planck-Institut fuer Gravitationsphysik und Universitaet Hannover Callinstr. 38, 30167 Hannover, Germany Tel: +49-511-762-17121, Fax: +49-511-762-5861 E-Mail: martin.hewit...@aei.mpg.de WWW: http://www.aei.mpg.de/~hewitson ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ _______________________________________________ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or moderator comments to the list. Contact the moderators at cocoa-dev-admins(at)lists.apple.com Help/Unsubscribe/Update your Subscription: https://lists.apple.com/mailman/options/cocoa-dev/archive%40mail-archive.com This email sent to arch...@mail-archive.com
