similar to: Agile web development with rails 4th edition adding sizes to the product

anyone can explain me why in the Agile Depot Tutorial application they use i.product_id to find if a product already exist in the cart, because the cart contains items, each of them references a product. I tried i.product_id like in the tutorial and i.product.i all of these 2 notation works , but i find the second seems more clean??? isn''t it. Any explanation will be fine Regards

Hi, This is my rHtml page & Corresponding actions & model pages:- ===listform.rHtml================= <h1>Products List</h1> <%= start_form_tag(:action => "add_to_cart")%> <table> <tr> <% i=0 %> <th> Product No. </th> <th> Unit Price </th> <th> Available Qty. </th> <th> Demand Qty. </th>

I need some help please.. when I created web application about books market, i create a cart and using test the message error appear like this on rake test:functionals LineItemsControllerTest > test_should_create_line_item > ERROR > Cannot redirect to nil! and also appear on web side, thats error told that "Cannot redirect to nil!" Then i was checking the code,

Hi there, I''m at a loss... I was on the #ROR channel last night and spoke to a really helpful person (Defiler) who gave me some direction on building a shopping cart. Unfortunately, I wasn''t able to successfully get to where I need to go. This is the predicament I am currently finding myself in: I''m building a shopping cart for a client''s new website. They

This is kind of frustrating (but no doubt helpful in the long run) that after following along and coding , and d/l the code the same error is appearing. For those who are familiar with the depot app, I''ve run into a problem after fixing the cart to reflect quanitites. I worked through the intended error messages but now have this appearing: SyntaxError in StoreController#add_to_cart

Thank you for the comments on conditional replacements. I now have another oddity to deal with. When adding products to the session cart I am not able to have the count incremented if the product has already been selected, rather another item is added to the cart. I copied the code from the book as carefully as I could and could find no error but to be sure I then cut and pasted the code

Hello, I am new to ruby on rails. When I tried to create a session I am getting an error, ''wrong number of arguments (1 for 0)'', in my controller. ~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~~ ArgumentError in CustomerController#add_to_cart wrong number of arguments (1 for 0) RAILS_ROOT: /project/bob_shopping Application Trace | Framework Trace | Full

I want to modify and update the items in the Depot - "display_cart". Since the cart is in a session, its a little hard to get at the data. I just want to create a way to change quantities, prices and recalculate. Has someone done this, and could you point me to the right direction. Thanks Chas -- Posted via http://www.ruby-forum.com/.

I''m trying to provide our customers with a page where they can add up to 20 items to their cart in one form. The form simply has 20 rows with each row containing a text input for product code and a text input for quantity. I''ve tried having the controller create an array that has an object for each row by looping through something like: @new_items[1] = Cart.new and the

i know someone just recently asked about queueing ajax requests, my question is similar in the regards that i don''t want my application to send multiple requests. i have 2 sortabbles lists left, and right. when i move an item from left to the right the onUpdate callback will send 2 ajax requests. one for each sortables. however. i want it to serialize and send back the results from

Hi I am new to the whole Rails/Ruby world as having come from a MS .NET background, but I have followed the Depot example in the Agile Web Dev. with Rails book with relative ease. However as an exercise to see how much I had understood, I thought I would attempt to modify the example a bit and add a Quantity field to the store index so as to pass that value into the cart. I have extended the

This is a newbie question, I have a class which is not derived from ActionController or ActiveRecord but I want to use logging, I tried require but still logging does not work - This class is located in a file in "model" directory. ------------------------------------ require ''logger'' class Cart def add_product(product) logger.info("Searching for product

Hi, This is my definition of method "add_to_cart" ======================= def add_to_cart count=params[:product][:count] while count.to_i>=0.to_i if params[:product][''dem_quantity''+count.to_s]=="" else @product = Product.find(params[:product][''product_id''+count.to_s]) print @product.name

Hi,I am developing a web app and am following the text-Agile web development.....Each time I click my "add to cart" button" i always get the  page below:I have double checked to see if i have errors in my code,there was none,please what do i need to do to proceed? NameError in InteractController#add_to_cartundefined local variable or method `find_cart'' for

Hi, I''m surprised by the solution published at the following place : http://wiki.pragprog.com/cgi-bin/wiki.cgi/Task_D-A_Dash_of_Ajax For the 4th point : the solution published make a database request for remove a Product from a Cart. I think it''s not needed. What do you all think about that ? --~--~---------~--~----~------------~-------~--~----~ You received this message

I am following the instructions on Agile Web Development with Rails book "Iteratio E1: Capturing an Order" section. When I run the migrations I get the following error. rake db:migrate (in /Users/balaparanj/work/depot) -- execute("alter table line_items \n add constraint fk_line_item_products \n foreign key (product_id) references products(id)") rake

Hello, Im in the process of working my way through the 2.ed of the agile book. As many of you already know, the book goes through the regular development cycle of the Depot application. I have hit a wall when they started talking about the sessions and the exact mechanics of how an item is added to the session. The code looks like this: depot/app/controllers/store_controller: def add_to_cart

hi people I don''t know much about ajax - jquery. And right now I need to use some functionality with them. In a form (sales model) I have the following code: <div> <%= f.label :product_id, "Product" %> <%= f.collection_select( :product_id, Product.all, :id, :name, options={} ) %> </div> <div> <%= f.label :price,

Hi I get to about page 103 of the book and get an application error. Further investigation reveals the following error in the dev log: Mysql::Error: #42S22Unknown column ''id'' in ''where clause'': UPDATE sessions SET `data` =

Hi, Let''s say I have the following: Product < AR Memberships < Product I know that the product with id 10 has its type column set to "Membership", but still I''d like to treat it as a regular product. So if I do: Product.find(10), Rails returns a Membership object. Is it possible to tell rails to not care about STI and to simply return a Product object?