stock_vertical_lift: packaging template more flexible

As the template is not used by JS we can pass full objects to it.
This way we can use any recordset information directly in the template
without having to override the method.

stock_vertical_lift/models/vertical_lift_operation_base.py

@@ -229,14 +229,13 @@ class VerticalLiftOperationBase(models.AbstractModel):
         self.next_step()
 
     def _render_product_packagings(self, product):
-        values = {
-            "packagings": [
-                {"name": pkg.name, "qty": pkg.qty, "unit": product.uom_id.name}
-                for pkg in product.packaging_ids
-            ]
-        }
-        content = self.env["ir.qweb"].render("stock_vertical_lift.packagings", values)
-        return content
+        return self.env["ir.qweb"].render(
+            "stock_vertical_lift.packagings",
+            self._prepare_values_for_product_packaging(product),
+        )
+
+    def _prepare_values_for_product_packaging(self, product):
+        return {"product": product}
 
     def _get_tray_qty(self, product, location):
         quants = self.env["stock.quant"].search(

stock_vertical_lift/views/shuttle_screen_templates.xml

@@ -1,24 +1,20 @@
 <odoo>
     <template id="packagings">
         <ul class="o_vlift_packaging list-unstyled">
-            <t t-foreach="packagings" t-as="packaging">
+            <t t-foreach="product.packaging_ids" t-as="packaging">
                 <li>
                     <span>1</span>
                     <span
                         class="packaging_name"
                         itemprop="name"
-                        t-esc="packaging['name']"
+                        t-esc="packaging.name"
                     />
                     <span>: </span>
-                    <span
-                        class="packaging_qty"
-                        itemprop="qty"
-                        t-esc="packaging['qty']"
-                    />
+                    <span class="packaging_qty" itemprop="qty" t-esc="packaging.qty" />
                     <span
                         class="packaging_unit"
                         itemprop="unit"
-                        t-esc="packaging['unit']"
+                        t-esc="product.uom_id.name"
                     />
                 </li>
             </t>