Just to clarify the reason behind this, in Ruby 1.9 { foo:bar } translates into { :foo => bar }. Since you want a has using constants as keys, the shorthand notation doesn't work. In other words, your first example translates to:
psc_options = { :NSMigratePersistentStoresAutomaticallyOption => NSNumber.numberWithBool(true), :NSInferMappingModelAutomaticallyOption => NSNumber.numberWithBool(true) } On Sat, Mar 19, 2011 at 7:54 PM, Morgan Schweers <cyber...@gmail.com> wrote: > Greetings, > I was trying to set up automatic migration, and did this brain-o, which > will be obvious to most folks, but stumped me for a little bit: > > psc_options = { > NSMigratePersistentStoresAutomaticallyOption:NSNumber.numberWithBool(true > ), > > > NSInferMappingModelAutomaticallyOption:NSNumber.numberWithBool(true) } > > fail(error) > unless@persistentStoreCoordinator.addPersistentStoreWithType(NSSQLiteStoreType, > > > configuration:nil, URL:url, > > > options:psc_options, error:error) > > > When what I should have been doing was something like: > > psc_options = {} > > psc_options[NSMigratePersistentStoresAutomaticallyOption] = > NSNumber.numberWithBool(true) > > psc_options[NSInferMappingModelAutomaticallyOption] = > NSNumber.numberWithBool(true) > > ... > > > ...or even... > > > psc_options = { NSMigratePersistentStoresAutomaticallyOption => > NSNumber.numberWithBool(true), > > NSInferMappingModelAutomaticallyOption => > NSNumber.numberWithBool(true) } > > > It's subtle bugs like these that make me slap my head... > > > ...but now Core Data automatic migration works! W00t! > > > -- Morgan > > > p.s. If you're trying to do Core Data migration, I found this article > particularly useful: > http://www.timisted.net/blog/archive/core-data-migration/ > > > > _______________________________________________ > MacRuby-devel mailing list > MacRuby-devel@lists.macosforge.org > http://lists.macosforge.org/mailman/listinfo.cgi/macruby-devel > >
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