Question

I’ve got the hang of nested includes—they’re great for performance—but what I’d really like is a ‘nested find’. What’s the best way to achieve something like:

@matchingProducts = Batch.find(:all,
                               :conditions => 'product.name LIKE ?', "%#{search}%",
                               :include => :product)

As you can see, Product is a nested attribute of Batch, but I want to find a batch based on Product.name.

Answer 1

Rails 3 I would use the AREL syntax:

@matches = Batch.where('product.name LIKE ?', "search").includes(:product)