Rails eager loading of counts?

Question

Eager loading is nice with the include attribute

Post.find(:all, :include => :author)

I\'m wondering if you can also eager load counts, like

Answer 1

Try this:

Comment.count(:group => :post)

To filter by conditions:

Comment.count(:group => :post, :conditions => {:approved => true })

These will return hashes with posts as keys and the number of comments as values.