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Anybody know where I can get the Pinheiro/Bates book? I can't find a bookstore w/ stock and the publisher says they don't know when they'll have it again. Thanks. -Frank

I can design basic Rails models without any trouble, and I feel pretty comfortable at the mysql command prompt. But some of these new database features in Rails 1.1 have me scratching my head: polymorphic associations, join models, etc. What is all that? I think I need a book that covers the advanced database topics one would need to know as a Rails developer -- not necessarily