On Aug 16, 2006, at 8:38 AM, Dr Nic wrote:

> This might just be sacrifice of using the MMs. I'm not sure there's a
> way to know to create just a HABTM when you might need a has_many
> :through; the latter being more general and powerful. The triggering
> logic would be the same.

Couldn't you just create a habtm if there are no columns in the  
intermediate tale but the ones with the keys? Does MM support has_one  
BTW?

-- fxn