episode-140
Railscasts Episode #140: Rails 2.2 Extras http://railscasts.com/episodes/140 Console Product.find_by_price(3) # => nil Product.find_by_price!(3) # => RecordNotFound Exception Product.find_last_by_price(4.99) Product.all(:joins => :category, :conditions => { :categories => { :name => 'Clothing' } })