[FIX] website_sale_aplicoop: Move template logic to controller for QWeb compatibility

This fixes the persistent 'TypeError: NoneType object is not callable' error
by moving all complex conditional logic out of the template and into the
Python controller.

QWeb has strict parsing limitations - it fails on:
- Complex nested conditionals in t-set
- Chained 'or' operators in t-attf-* attributes
- Deep object attribute chains (uom_id.category_id.name)

Solution: Pre-process all display values in controller via _prepare_product_display_info()
which creates product_display_info dict with safe values ready for template.

Template now uses simple dict.get() calls without any conditional logic.

website_sale_aplicoop/controllers/website_sale.py

@@ -388,6 +388,40 @@ class AplicoopWebsiteSale(WebsiteSale):
         )
         return False
 
+    def _prepare_product_display_info(self, product, product_price_info):
+        """Prepare all display information for a product in a QWeb-safe way.
+
+        This function pre-processes all values that might be None or require
+        conditional logic, so the template can use simple variable references
+        without complex expressions that confuse QWeb's parser.
+
+        Args:
+            product: product.template record
+            product_price_info: dict with 'price', 'list_price', etc.
+
+        Returns:
+            dict with all pre-processed display values ready for template
+        """
+        # Safety: Get price, ensure it's a float
+        price_data = product_price_info.get(product.id, {})
+        price = (
+            price_data.get("price", product.list_price)
+            if price_data
+            else product.list_price
+        )
+        price_safe = float(price) if price else 0.0
+
+        # Safety: Get UoM category name
+        uom_category_name = ""
+        if product.uom_id:
+            if product.uom_id.category_id:
+                uom_category_name = product.uom_id.category_id.name or ""
+
+        return {
+            "display_price": price_safe,
+            "safe_uom_category": uom_category_name,
+        }
+
     def _validate_confirm_request(self, data):
         """Validate all requirements for confirm order request.
 
@@ -1029,6 +1063,15 @@ class AplicoopWebsiteSale(WebsiteSale):
                     "tax_included": False,
                 }
 
+        # Prepare display info for each product (QWeb-safe: all values pre-processed)
+        # This ensures the template can use simple variable references without complex conditionals
+        product_display_info = {}
+        for product in products:
+            display_info = self._prepare_product_display_info(
+                product, product_price_info
+            )
+            product_display_info[product.id] = display_info
+
         # Calculate available tags with product count (only show tags that are actually used and visible)
         # Build a dict: {tag_id: {'id': tag_id, 'name': tag_name, 'count': num_products}}
         available_tags_dict = {}
@@ -1099,6 +1142,7 @@ class AplicoopWebsiteSale(WebsiteSale):
                 "day_names": self._get_day_names(env=request.env),
                 "product_supplier_info": product_supplier_info,
                 "product_price_info": product_price_info,
+                "product_display_info": product_display_info,
                 "labels": labels,
                 "labels_json": json.dumps(labels, ensure_ascii=False),
                 "lazy_loading_enabled": lazy_loading_enabled,
@@ -1225,6 +1269,14 @@ class AplicoopWebsiteSale(WebsiteSale):
                 "published_tags": published_tags,
             }
 
+        # Prepare display info for each product (QWeb-safe: all values pre-processed)
+        product_display_info = {}
+        for product in products_page:
+            display_info = self._prepare_product_display_info(
+                product, product_price_info
+            )
+            product_display_info[product.id] = display_info
+
         # Get labels
         labels = self.get_checkout_labels()
 
@@ -1236,6 +1288,7 @@ class AplicoopWebsiteSale(WebsiteSale):
                 "filtered_product_tags": filtered_products,
                 "product_supplier_info": product_supplier_info,
                 "product_price_info": product_price_info,
+                "product_display_info": product_display_info,
                 "labels": labels,
                 "has_next": has_next,
                 "next_page": page + 1,