On 21.02.2012, at 14:08, ruby LED wrote: > class LineItem < ActiveRecord::Base > belongs_to :product > belongs_to :cart > > def total_price > if product.price > product.price = product.price * quantity > else > 0.to_d > end > end > end >
So. I agree that: 1) current_item = LineItem.new(:product_id=>product_id) = BAD IDEA. Because, if you pass the invalid product ID, LineItem would be initialized as well, but the .product association would return nil. 2) Actually I didn't see how quantity is set up? Looking at your previous code it must be method 'quantity'. PS. Why are you writing product.price=? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Talk" group. To post to this group, send email to [email protected]. To unsubscribe from this group, send email to [email protected]. For more options, visit this group at http://groups.google.com/group/rubyonrails-talk?hl=en.
