On 26 August 2010 07:04, pravin mishra <[email protected]> wrote: > Any one can explain me???????? > > in agile web development book in chapter Cart Creation > > depot_f/app/models/cart.rb > > class Cart > attr_reader :items > def initialize > �...@items = [] > end > > def add_product(product) > @items << product > end > end > > depot_f/app/views/store/index.html.erb > > <%= button_to 'Add to Cart', :action => 'add_to_cart', :id => product %> > > depot_f/app/controllers/store_controller.rb > > def add_to_cart > product = Product.find(params[:id]) > @cart = find_cart > @cart.add_product(product) > end > > when use will click on Add_to_cart button in index page then width > particular product id add_to_cart action take placed in > store_controller.rb file.After finding the array of row from from > table product and assign to product variable. then find_cart method is > called in same controller which is private and create OR initialize > session. then add_product method is called width product variable then > it will goes to cart.rb model and then execute def > > add_product(product) > @items << product > end > > please explain me why add_product(product) method in store_controller > will go in Cart class in model cart.rb why not in other class.
add_product is called by the line @cart.add_product(product) @cart is a Cart object so it calls the add_product method of the Cart class. Perhaps you should do a bit of reading up on basic Ruby. The Ruby Pickaxe book is very good. Colin -- 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.
