The Cbjective-C way to handle this would be to put a category that provided an
`each` method on NSOrderedSet. Then when you called `each` it would just work.
Ruby has a similar functionality but I can't remember right now what it's
called.
Using a category would be optimal in the case of Core Data because in some
instances you can actually evoke a method as part of a key path when sending
Key-Value messages.
Shannon
On Nov 16, 2011, at 4:11 AM, Jean-Denis MUYS wrote:
> I have this ordered Core Data to-many relation named "operations" that I want
> to iterate over. I wrote:
>
> self.operations.each { | operation | operation.doSomething }
>
> However this fails because self.operations returns an NSOrderedSet and
> NSOrderedSet doesn't have an 'each' method.
>
> I was able to use the 'enumerateObjectsUsingBlock' method of NSOrderedSet
> which is working fine.
>
> My question is: what would be the MacRuby way to add an 'each' method to
> NSOrderedSet?
>
> Thanks,
>
> Jean-Denis
>
>
>
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