On 2010 Sep 08, at 01:43, Ben wrote:
> I get the following…
>
> NSUnderlyingError = Error Domain=NSCocoaErrorDomain Code=256
> UserInfo=0x1ec540 "Operation could not be completed. (Cocoa error 256.)";
> reason = "Failed to save new store after first pass of migration.";
Nice-looking error,
Hi Jerry, thanks for the reply. I managed to get the subclass methods to fire
eventually, I have no idea what I was doing wrong though. I trashed all my
files and started again and for some reason that fixed it.
But I now have another problem, core data migrates fine without the
NSEntityMigrati
On 2010 Sep 06, at 05:31, Ben wrote:
> my NSEntityMigrationPolicy subclass methods are not being called so that I
> can run further migration code.
>
> @implementation TestMigrationPolicy
>
> - (BOOL)beginEntityMapping:(NSEntityMapping *)mapping
> manager:(NSMigrationManager
I am trying to migrate from one .xcdatamodel file to another. I have a
NSEntityMigrationPolicy subclass, the name of which I have entered in xcode->
.xcmappingmodel file -> entity -> "custom Policy" field.
I run my app which successfully opens and runs the previous version of my data
so I can o
