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データスキーマ変更時の処理

Objective-C

Last updated at 2012-12-26Posted at 2012-04-03

migrationをやる方法

NSDictionary *options = [NSDictionary dictionaryWithObjectsAndKeys:
    [NSNumber numberWithBool:YES], NSMigratePersistentStoresAutomaticallyOption,
    [NSNumber numberWithBool:YES], NSInferMappingModelAutomaticallyOption, nil];

以上のオプションを

[coordinator addPersistentStoreWithType:NSSQLiteStoreType configuration:nil URL:url options:options error:&error]

に渡してやる．

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