High Level MCV Question

Rails
1

I’m new here- here’s the background on my question:

  • I’m building a cart
  • I’m also reading “Agile Rails Development”
  • Controller is “store_controller.rb”
  • View “index” displays products, only the image, no other detail
  • My desired functionality is that the user clicks the image in the
    index view and gets the view “details”, which is where the product can
    be added to the cart.

I don’t have a lot of experience with the MCV model that Rails is all
about, so I’m having trouble getting the conceptual idea of what I need
to do to pull this off. My questions are:

  • What definitions and methods to I need to put in the controller
    “store_controller.rb”, the model “product.rb” and
  • How do I make them work together with the views “index” and
    “details”?

Thank you so much for your help, I’d rather learn how to think about
this correctly and get a level of elegance in my code than beat my head
against the wall making something “work”.

2

The views correspond to “actions” (methods) in the controller. Your
controller (product_controller.rb) will look something like:

def index
@products = Product.find(:all)
end

def details
@product = Product.find(params[:id])
end

And your views will be in app/views/product/.
When a user requests product/index, the application will try to render
it with views/product/index.rhtml. Your index.rhtml might look like:

<% @products.each do | product | -%>
<%= link_to image_tag(product.image, {:alt => product.name}),
:action => :details, :id => product.id)-%>
<% end %>

Is that what you meant?

3

Yes. :slight_smile:

Thank you!