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- (void) setupAndMigrate: (id<DatabaseManagerMigrateDelegate>) delegate
{
self.migrationDelegate = delegate;
NSThread * migrationThread = [[[NSThread alloc ] initWithTarget: self selector: @selector( threadMigration ) object: nil ] autorelease];
[migrationThread start];
}
- (void) threadMigration
{
NSAutoreleasePool * pool = [[NSAutoreleasePool alloc] init];
[self performBlockOnMainThread: ^{
_mainObjectContext = [[NSManagedObjectContext alloc] init];
[_mainObjectContext setPersistentStoreCoordinator:self.persistentStoreCoordinator];
[_mainObjectContext setUndoManager:nil];
NSMergePolicy * merge = [[NSMergePolicy alloc] initWithMergeType:NSMergeByPropertyObjectTrumpMergePolicyType];
[_mainObjectContext setMergePolicy: merge ];
[merge release];
} waitUntilDone: YES ];
if( MIGRATION_VERSION_15 == migration )
{
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_CHECKFAVORITETRACKS ];
[[JKAlbumsManager sharedManager] initFavoriteTracksInContext:_mainObjectContext];
} waitUntilDone: YES ];
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_CHECKFAVORITEARTIST ];
[[JKArtistsManager sharedManager] initFavoriteTracksInContext:_mainObjectContext];
} waitUntilDone: YES ];
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_UPDATEARTISTIDS ];
[[JKArtistsManager sharedManager] migrateArtistFromPreMasterArtistEra];
} waitUntilDone: YES ];
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_PLAYLISTMIGRATION ];
[self performPlaylistContentMigration];
} waitUntilDone: YES ];
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_SAVEANDFINALIZE ];
[DatabaseManager saveContext:_mainObjectContext];
} waitUntilDone: YES ];
}
[self performBlockOnMainThread: ^{
[self setMigrationStatus: DMS_DONE ];
} waitUntilDone: YES ];
self.migrationTimer = nil;
self.migrationDelegate = nil;
[pool drain];
[NSThread exit];
}
Видимо тут была очень острая необходимость создавать дополнительный поток =) Ну и [NSThread exit], что бы кошерно все было.