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 only assume basic migration has worked. HOWEVER my
NSEntityMigrationPolicy subclass methods are not being called so that I can run
further migration code.
@implementation TestMigrationPolicy
- (BOOL)beginEntityMapping:(NSEntityMapping *)mapping
manager:(NSMigrationManager *)manager error:(NSError * *)error
{
NSLog(@"this log is never shown!!!!");
return YES;
}
Does anyone have any ideas why my it might not be getting called? I am new to
core data migration and I'm currently at a loss as to why this is not behaving
as I feel it should._______________________________________________
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