items can be deleted from a cart

app/controllers/carts_controller.rb

@@ -32,11 +32,15 @@ def add_item
   end
 
 
-  # Remove an item from the cart
+  # Remove an item from the cart but also have a rescue if for some reason it cant be found or destroyed
   def remove_item
-    cart_item = CartItem.find(params[:id])
-    cart_item.destroy
-    redirect_to @cart, notice: "Item removed from cart."
+    cart_item = CartItem.find_by(id: params[:id])
+    if cart_item
+      cart_item.destroy
+      redirect_to cart_path(params[:cart_id]), notice: "#{cart_item.item.name} was removed from the cart."
+    else
+      redirect_to cart_path(params[:cart_id]), alert: "Item not found in the cart."
+    end
   end
 
   private

app/views/carts/show.html.erb

@@ -21,6 +21,9 @@
         <td><%= number_to_currency(cart_item.total_price) %></td>
         <td><%= number_to_currency(cart_item.discount) %></td>
         <td><%= number_to_currency(cart_item.total_price - cart_item.discount) %></td>
+        <td>
+          <%= button_to 'Remove', remove_item_cart_path(@cart.id, id: cart_item.id), method: :delete, data: { confirm: 'Are you sure you want to remove this item?' } %>
+        </td>
       </tr>
     <% end %>
   </tbody>

config/routes.rb

@@ -3,23 +3,26 @@
   resources :promotions
   resources :items
   resources :categories
+
+  # Cart routes
   resources :carts, only: [ :show ] do
     member do
       post "add_item"
-      delete "remove_item/:id", to: "carts#remove_item", as: "remove_item"
     end
   end
 
+  # Dedicated route for removing items from the cart
+  delete "carts/:cart_id/remove_item/:id", to: "carts#remove_item", as: "remove_item_cart"
+
   # Define your application routes per the DSL in https://guides.rubyonrails.org/routing.html
 
-  # Reveal health status on /up that returns 200 if the app boots with no exceptions, otherwise 500.
-  # Can be used by load balancers and uptime monitors to verify that the app is live.
+  # Health check route
   get "up" => "rails/health#show", as: :rails_health_check
 
-  # Render dynamic PWA files from app/views/pwa/*
+  # PWA support
   get "service-worker" => "rails/pwa#service_worker", as: :pwa_service_worker
   get "manifest" => "rails/pwa#manifest", as: :pwa_manifest
 
-  # Defines the root path route ("/")
+  # Root path
   # root "posts#index"
 end