fix 500 error

app/models/home_page.rb

@@ -63,7 +63,7 @@ def shop_products(limit = shop_products_limit)
       Product.left_joins(:order_products)
              .select("products.*, COALESCE(SUM(order_products.quantity), 0) AS total_sold")
              .group("products.id")
-             .order(Arel.sql("total_sold DESC"))
+             .order(Arel.sql("COALESCE(SUM(order_products.quantity), 0) DESC"))
              .limit(safe_limit)
     else
       Product.order(created_at: :asc).limit(safe_limit)

app/views/home_pages/index.html.erb

@@ -71,7 +71,7 @@
       <% if home_page.shop_bloc_type? %>
         <div class="container">
           <h2 class="text-center mb-4"><%= home_page.title %></h2>
-          <% products = home_page.shop_products %>
+          <% products = home_page.shop_products.to_a %>
           <% if products.any? %>
             <% product_count = products.size %>
             <% grid_classes =

spec/models/home_page_spec.rb

@@ -14,6 +14,14 @@
     let!(:product_1) { Product.create!(title: "Produit 1") }
     let!(:product_2) { Product.create!(title: "Produit 2") }
     let!(:product_3) { Product.create!(title: "Produit 3") }
+    let!(:user) do
+      User.create!(
+        email: "buyer@example.com",
+        password: "password123",
+        password_confirmation: "password123",
+        cgu_accepted: true
+      )
+    end
 
     before do
       product_1.update_columns(created_at: Time.zone.local(2026, 1, 1, 9, 0, 0), updated_at: Time.zone.local(2026, 1, 1, 9, 0, 0))
@@ -38,5 +46,15 @@
 
       expect(home_page.shop_products(0).size).to eq(1)
     end
+
+    it "orders top sellers by sold quantity" do
+      order = Order.create!(user: user, status: "pending")
+      OrderProduct.create!(order: order, product: product_2, quantity: 1)
+      OrderProduct.create!(order: order, product: product_3, quantity: 4)
+
+      home_page = described_class.create!(bloc_type: :shop, shop_scope: :top_sellers, shop_products_limit: 2)
+
+      expect(home_page.shop_products.pluck(:id)).to eq([product_3.id, product_2.id])
+    end
   end
 end