Add Order Purchase Functionality

app/controllers/item_controller.rb

@@ -23,4 +23,31 @@ def handle_create_listing
             render :create_listing_form, status: :unprocessable_entity
         end
     end
+
+    def show_listing
+            @item = Item.find(params[:id])
+    end
+
+    def create_order
+        # Ensure the user is logged in
+        unless session[:user]
+          redirect_to login_path and return
+        end
+
+        # Find the item to be ordered
+        @item = Item.find(params[:id])
+
+        # Create a new order with item, user, and quantity parameters
+        @order = Order.new(
+          item: @item,
+          user: User.find(session[:user]["id"]),
+          quantity: params[:quantity]
+        )
+
+        if @order.save
+          redirect_to item_path(@item), notice: "Order placed successfully!"
+        else
+          redirect_to item_path(@item), alert: @order.errors.full_messages.join(", ")
+        end
+      end
 end

app/views/item/index.html.erb

@@ -17,11 +17,11 @@
     <% @items.each do |item| %>
         <li>    
             <div class="item">
-                <h2><%= item.name %></h2>
+                <h2><%= link_to item.name, item_path(item) %></h2>
                 <p><strong>Description:</strong> <%= item.description %></p>
                 <p><strong>Price:</strong> <%= number_to_currency(item.price) %></p>
                 <p><strong>Seller:</strong> <%= item.user.username %></p>
-                <p><strong>Rating:</strong> TODO</p>
+                <p><strong>Reviews:</strong> TODO</p>
             </div>
         </li>
     <% end %>

app/views/item/show_listing.html.erb

@@ -0,0 +1,23 @@
+<h1><%= @item.name %></h1>
+<p><strong>Description:</strong> <%= @item.description %></p>
+<p><strong>Price:</strong> <%= number_to_currency(@item.price) %></p>
+<p><strong>Seller:</strong> <%= @item.user.username %></p>
+
+<% if session[:user] %>
+  <%= form_with url: create_order_path(@item), local: true do |form| %>
+    <div>
+      <%= form.label :quantity, "Quantity" %>
+      <%= form.number_field :quantity, min: 1, value: 1 %>
+    </div>
+    <%= form.submit "Place Order" %>
+  <% end %>
+
+  <% if flash[:notice] %>
+    <p class="notice-message"><%= flash[:notice] %></p>
+  <% end %>
+
+<% else %>
+  <p>Please <a href="<%= login_path %>">log in</a> to place an order.</p>
+<% end %>
+
+<p><strong>Reviews:</strong> </p>

config/routes.rb

@@ -17,4 +17,7 @@
 
   get "create_listing" => "item#create_listing_form"
   post "create_listing" => "item#handle_create_listing"
+
+  get "item/:id" => "item#show_listing", as: :item
+  post "item/:id/order" => "item#create_order", as: :create_order
 end