Hi, I'm reading Agile Web Development with Rails 2nd Edition. Here, to save items a customer has selected, it has used session and a "Cart" class which is a model but doesn't have 'carts' table in the database. In the class it has defined method to add selected items as: -------------------------------------------------------------------------------- def add_product(product) @items << product end -------------------------------------------------------------------------------- where @items is an array and product is created with: -------------------------------------------------------------------------------- def add_to_cart @cart=find_cart product=Product.find(params[:id]) @cart.add_product(product) end -------------------------------------------------------------------------------- and there is a use of find_cart method which is used to find cart or create new if there isn't any as: -------------------------------------------------------------------------------- def find_cart session[:cart] ||= Cart.new end --------------------------------------------------------------------------------
Now, I'm trying to follow the author but my situation is littly twisted as in my case customer will enter lots other details than just a campsite name. For eg: it will be campsite name, arrival_date, days to stay, group size and also claims for family rate if eligible. So, I've thought of saving all these details in the "carts" table in the database. So I've also made Cart class but I have 'carts' table as well. So, I've used <%form_for :cart ....%> to get all the details from the form in one object and done @cart=find_cart(params[:cart]) and find_cart method as: (I'm not sure if its right way. I even don't know what exactly is happening between sessions table which was created via db:session:create and my 'carts' table.) -------------------------------------------------------------------------------- def find_cart(cartobj) session[:cart] ||= Cart.new(cartobj) end -------------------------------------------------------------------------------- so far so good, details got saved but when it came to emptying the cart list, I'm confused what to do. Author has done it as: -------------------------------------------------------------------------------- def empty_cart session[:cart]=nil redirect_to :action => :index end -------------------------------------------------------------------------------- If i do the same just the data in the sessions table is being deleted and the details in the carts table are still there. So, how can I delete details related with the particular session from this 'carts' table as it will contain details from other users as well with different session id. Thanks for your time to go thru and please advice any suggestions.... thnx -- Posted via http://www.ruby-forum.com/. --~--~---------~--~----~------------~-------~--~----~ 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 -~----------~----~----~----~------~----~------~--~---
