Re: Core Data dog-slow when using first time after boot

Am 26.08.2009 um 01:21 schrieb Ben Trumbull: When I use setRelationshipKeyPathsForPrefetching the fetch throws: -[NSSQLAttribute inverseRelationship]: unrecognized selector sent to instance 0x10ee150 Can you provide the entire stack trace at this point ? gdb use future-break objc_except

"Could not merge data"-error on save in a single moc app

Hi, I get a "Could not merge changes"-error on save in a single moc app (*). The docs state this is a problem of a multi-moc setup: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CoreData/Articles/cdTroubleshooting.html The error does not appear on every system and seem

Re: "Could not merge data"-error on save in a single moc app

On 29.10.2009, at 20:05, Ben Trumbull wrote: I get a "Could not merge changes"-error on save in a single moc app (*). The docs state this is a problem of a multi-moc setup: http://developer.apple.com/mac/library/documentation/Cocoa/Conceptual/CoreData/Articles/cdTroubleshooting.html Yes, the

Re: Should I learn CoreData for this project?

more disadvantages to mention: 1. schema updates with every model change if you use an sql store (you have to make a mapping for every single from version/ to version combination you need to support) 2. multithreaded core data is very hard to get right (multiple contexts, data merges) 3. pe

Re: Should I learn CoreData for this project?

On 04.11.2009, at 12:15, Kai Brüning wrote: >> 2. multithreaded core data is very hard to get right (multiple contexts, >> data merges) > > Isn’t this true for multi threaded code in general? > Seriously, the documentation explains how to structure multi threaded use of > Core Data. This might

Core Data dog-slow when using first time after boot

about SL) regards Ruotger Skupin ___ 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 you

Re: Core Data dog-slow when using first time after boot

Am 19.08.2009 um 18:38 schrieb Nick Zitzmann: On Aug 19, 2009, at 4:13 AM, Ruotger Skupin wrote: when fetching about 5000 objects from an sql store, Core Data is very slow the very first time after a boot. When running the app the first time it takes 50 to 90 seconds and when starting it

Re: Core Data dog-slow when using first time after boot

Am 19.08.2009 um 19:18 schrieb I. Savant: Hmm ... time to hit the books if you haven't already: http://developer.apple.com/documentation/Cocoa/Conceptual/CoreData/Articles/cdPerformance.html#/ /apple_ref/doc/uid/TP40003468 Have you tried anything suggested there? Fetch Limits: Not tri

Re: Core Data dog-slow when using first time after boot

Am 20.08.2009 um 04:38 schrieb M Pulis: I got that, Bill, thank you. The OP did not specify what particular sql store (we still do NOT know) nor if he is compiled Universal, has any helper programs, etc, he did however, describe symptoms I have seen with Rosetta. So I simply proposed che

Re: Core Data dog-slow when using first time after boot

Am 20.08.2009 um 11:34 schrieb Ruotger Skupin: Am 19.08.2009 um 22:00 schrieb Ben Trumbull: I debugged it with some Snow Leopard magic and found out, that firing faults is very slow the first time after boot. When I use -[NSArray filteredArrayUsingPredicate:] the fault firing is killing

Re: Core Data dog-slow when using first time after boot

Am 20.08.2009 um 22:28 schrieb Ben Trumbull: setRelationshipKeyPathsForPrefetching When I use setRelationshipKeyPathsForPrefetching the fetch throws: -[NSSQLAttribute inverseRelationship]: unrecognized selector sent to instance 0x10ee150 For the record: I do use one-way relationships Ru

Re: Core Data dog-slow when using first time after boot

Am 24.08.2009 um 23:13 schrieb Ben Trumbull: When I use setRelationshipKeyPathsForPrefetching the fetch throws: -[NSSQLAttribute inverseRelationship]: unrecognized selector sent to instance 0x10ee150 Can you provide the entire stack trace at this point ? gdb use future-break objc_except

Core Data: How to encrypt a persistent store

Hi, I have an application which uses Core Data and handles sensitive information. Is there an easy way to encrypt the on-disk persistent store provided I'm reasonably fluent in libCrypto and do not want to use an encrypted disk image? Ruotger _

probably OT: using encrypted disk images with NSTask and hdiutil

Hi, To protect sensitive user data I attach an encrypted disk image and store the application data there. I'm using hdiutil with the -passphrase option to create and attach encrypted disk images. This is deprecated and obviously not the correct way but quite frankly the man file for hdiut

NSPredicateEditor and decimal numbers with fractions

Hi, I've set up a NSPredicateEditor with a template that forms for example a predicate like: [Gross Value] [is] [ ] the format of the text field is set as Number in Interface Builder. If I input 32.99 into the field I get a predicate like this: grossAmount.amount == 32 Obviously the nu

NSPredicateEditor and decimal numbers with fractions

Hi, I've set up an NSPredicateEditor with a template that forms a predicate like: [Gross Value] [is] [32.99] the format of the text field is set as Number in Interface Builder. If I input 32.99 into the field I get a predicate like this: grossAmount.amount == 32 Obviously the number is r

Debugging strategy - exceptions

Hi, this is more of an open discussion topic than a concrete question but hopefully someone has a good idea about this: I got a bug report of a non-crash bug I cannot reproduce and where I do not even know where to start looking. The only hint is a line in the console.log: *** -[NSCFDic

Re: Debugging strategy - exceptions

I would rather not try to teach my users gdb... Ruotger Am 09.07.2008 um 12:31 schrieb Joan Lluch (casa): El 09/07/2008, a las 12:13, Ruotger Skupin escribió: So an exception got thrown for a pretty obvious reason, but where? Could be anywhere, even in WebKit (which we use). Is there any

Trashing files and undo

Hi, my app trashes files with -[NSWorkspace performFileOperation:source:destination:files:tag:] and NSWorkspaceRecycleOperation. This works flawlessly but users want undo. NSWorkspace does not seem to allow undoing said file operation (or any file operation for that matter). Correct me if

Re: Trashing files and undo

Hi Charles, let me make sure I understand that. I get the FSRef and the original path of the file and keep hold of the information before trashing it with performFileOperation. When I want it back, I resolve the FSRef and move it back to original location. Ruotger Am 11.07.2008 um 17

Re: Trashing files and undo

ution Charles proposed? Ruotger Am 11.07.2008 um 17:44 schrieb Gregory Weston: Ruotger Skupin wrote: my app trashes files with -[NSWorkspace performFileOperation:source:destination:files:tag:] and NSWorkspaceRecycleOperation. This works flawlessly but users want undo. NSWorkspace does not se

Message Framework and Garbage Collection

Hi, I'm trying to use the Message Framework with Garbage Collection enabled and it crashes deep down in the framework. With retain/release it works fine. Am I correct in assuming that since it is deprecated for 10.5 it can't be used with GC? Is there anything that can be used instead? Ru

Re: Message Framework and Garbage Collection

lly in the background, i.e. without opening a "mailto:"; url? Ruotger On 04.08.2008, at 20:28, Bill Bumgarner wrote: On Aug 4, 2008, at 10:35 AM, Ruotger Skupin wrote: I'm trying to use the Message Framework with Garbage Collection enabled and it crashes deep down in the framework.

Re: Message Framework and Garbage Collection

Hi, just to let you know: I'm trying to use the Message Framework with Garbage Collection enabled and it crashes deep down in the framework. I filed a bug: 6128812 You can [...] use Pantomime, Pantomime is not GC-ready. I haven't tried to switch on CG and see what happens though. Ruot

mouseMoved events and unfocused views

Hi, is there a way to get mouseMoved events in a view without it being the focused view (and without getting the focus, of course)? Thanks Ruotger ___ Cocoa-dev mailing list (Cocoa-dev@lists.apple.com) Please do not post admin requests or

NSLocale: " " vs. " "

Hi, Is there a way to determine if a user (or an address depending on the country) prefers the zip code first or the city name first, e.g.: Apple 1 Infinite Loop Cupertino, CA 95014 vs Apple Computer GmbH Dornacher Straße 3 D 85622 Feldkirchen Germany Probably one might want to figure out

Chained Migration of Leopard CoreData stores

Hi, let's say I have four versions of my data model: DataModel1.xcdatamodel DataModel2.xcdatamodel DataModel3.xcdatamodel DataModel4.xcdatamodel (this is the current one) and three model mapping files which always map from version n to version n+1: Mapping1to2.xcmappingmodel Mapping2to3.xcm

Re: Chained Migration of Leopard CoreData stores

Am 17.04.2008 um 02:30 schrieb Ben Trumbull: Hi, let's say I have four versions of my data model: DataModel1.xcdatamodel DataModel2.xcdatamodel DataModel3.xcdatamodel DataModel4.xcdatamodel (this is the current one) and three model mapping files which always map from version n to version n+

UIScrollView - photo viewer like usage

Hi, this is going to sound like an angry rant but actually it isn't. I'm simply a bit frustrated... I have been trying to use UIScrollView to build an Photo app-like image viewer. The view is supposed to show photos with swiping between them, zooming and rotating with interface rotation.

[iPhone] Abort/remove all running/pending animations

Hi, I'm resizing and moving the content of a UIScrollView in the - scrollViewDidEndZooming:withView:atScale: method including the removing/adding of views. This usually results in the content bouncing more or less uncontrollable. My question: Is it possible to remove/abort *all* (really a

Re: Retrieve Default Currency Type in Mac, iPhone

Hi Ben, Be careful with your assumptions. Some Locales have the currency symbol after the number, e.g. German: 1.234,56 € (note the decimal separator between the 4 and the 5 for additional scanning fun!) Roddi Am 16.02.2009 um 12:35 schrieb Ben: I haven't checked the docs, but could y

Re: [iPhone] Abort/remove all running/pending animations [SOLVED]

12.02.2009 um 11:57 schrieb Ruotger Skupin: Hi, I'm resizing and moving the content of a UIScrollView in the - scrollViewDidEndZooming:withView:atScale: method including the removing/adding of views. This usually results in the content bouncing more or less uncontrollable. My question:

NSUndoManager [EMAIL PROTECTED] up Core Data database

Hi, I have a core data database with two contexts attached to it. One read- only for the main thread and bindings, one read/write for a background thread that takes data from the network and feeds it into the database. I know this is an effed-up design you shouldn't copy, but it won't chan

Re: NSUndoManager [EMAIL PROTECTED] up Core Data database

Hi Ben, yes, there are some sporadic problems left in save: but these are exception I can handle. The NSUndoManager crashes were totally beyond my control, so this is going to help a lot. Thanks Ruotger Am 08.10.2008 um 22:23 schrieb Ben Trumbull: Ruotger, This has less to do w

Re: NSUndoManager messing up Core Data database

Hi Ron, I wasn't clear enough on one point. The main thread context's undo manager crashes (the posted backtrace), but changing the DB only happens in the background thread. Assuming no binding changes the main thread context, there shouldn't be anything to undo in the main thread context

Multithreaded Core Data app design

Hi, Since Ron asked, let's move this to an own thread (no pun intended): Am 08.10.2008 um 18:23 schrieb Ron Lue-Sang: Hi, I have a core data database with two contexts attached to it. One read-only for the main thread and bindings, one read/write for a background thread that takes data fr

Comparing the Class

Hi, when comparing the class of two objects I usually do [obj1 isKindOfClass:[obj2 class]]. But if I say have the Class as an input value to a method: - (void) bla:(Class) inClass { if (/* inClass is an NSString */) { // do stuff } else if (/*