Re: NSManagedObjectContext's undoManager is nil on macOS
Re: NSManagedObjectContext's undoManager is nil on macOS
- Subject: Re: NSManagedObjectContext's undoManager is nil on macOS
- From: Rick Mann <email@hidden>
- Date: Thu, 06 Sep 2018 13:31:38 -0700
"although remember that both NSError** out parameters and exceptions are
autoreleased and do not escape block lexical scope happily"
That statement needs to be linked to clarification.
> On Sep 6, 2018, at 12:56 , Jeff Nadeau <email@hidden> wrote:
>
> This behavior changed in 10.12 for applications linked against that SDK or
> later. It’s listed in the “Behavioral changes” section of the Core Data
> release notes for that year:
> https://developer.apple.com/library/archive/releasenotes/General/WhatNewCoreData2016/ReleaseNotes.html#//apple_ref/doc/uid/TP40017342-CH1-DontLinkElementID_10
>
> <https://developer.apple.com/library/archive/releasenotes/General/WhatNewCoreData2016/ReleaseNotes.html#//apple_ref/doc/uid/TP40017342-CH1-DontLinkElementID_10>
>
> There's a documentation bug to correct the information on the
> NSManagedObjectContext class doc. I’ll give it a little bump.
>
> Going forward, you can set the undoManager property with your own
> NSUndoManager after you’ve initialized the context.
>
> - Jeff
>
>> On Sep 5, 2018, at 7:33 PM, Dave Fernandes <email@hidden>
>> wrote:
>>
>> The docs say:
>> "In macOS, a context provides an undo manager by default; on iOS, the undo
>> manager is nil by default.”
>>
>> However, I am finding on macOS 10.13.6, the undoManager is always nil when
>> creating a MOC. Is this new behavior expected for High Sierra, or is it a
>> bug?
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--
Rick Mann
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