stock_measuring_device: Retrieve product when device is already assigned

stock_measuring_device/models/measuring_device.py

@@ -40,7 +40,7 @@ class MeasuringDevice(models.Model):
             return work_ctx.component(usage=self.device_type)
 
     def open_wizard(self):
-        return {
+        res = {
             "name": _("Measurement Wizard"),
             "res_model": "measuring.wizard",
             "type": "ir.actions.act_window",
@@ -54,6 +54,12 @@ class MeasuringDevice(models.Model):
                 "no_breadcrumbs": True,
             },
         }
+        if self._is_being_used():
+            pack = self.env["product.packaging"].search(
+                [("measuring_device_id", "=", self.id)], limit=1
+            )
+            res["context"]["default_product_id"] = pack.product_id.id
+        return res
 
     def _is_being_used(self):
         self.ensure_one()

stock_measuring_device/models/product_packaging.py

@@ -16,6 +16,7 @@ class ProductPackaging(models.Model):
         string="Measuring device which will scan the package",
         help="Technical field set when an operator uses the device "
         "to scan this package",
+        index=True,
     )
 
     def _measuring_device_assign(self, device):

stock_measuring_device/wizard/measuring_wizard.py

@@ -89,6 +89,7 @@ class MeasuringWizard(models.TransientModel):
                         "barcode": pack.barcode,
                         "packaging_id": pack.id,
                         "packaging_type_id": pack_type.id,
+                        "scan_requested": bool(pack.measuring_device_id),
                     }
                 )
             vals_list.append(vals)
@@ -160,6 +161,15 @@ class MeasuringWizard(models.TransientModel):
             "flags": {"headless": False, "clear_breadcrumbs": True},
         }
 
+    def retrieve_product(self):
+        """Assigns product that locks the device if a scan is already requested."""
+        if self.device_id._is_being_used():
+            pack = self.env["product.packaging"]._measuring_device_find_assigned(
+                self.device_id
+            )
+            self.product_id = pack.product_id
+            self.onchange_product_id()
+
     def reload(self):
         return {
             "type": "ir.actions.act_view_reload",

stock_measuring_device/wizard/measuring_wizard.xml

@@ -37,6 +37,12 @@
                             string="Refresh"
                             icon="fa-refresh"
                         />
+                        <button
+                            name="retrieve_product"
+                            type="object"
+                            string="Retrieve Product"
+                            icon="fa-search"
+                        />
                     </group>
                     <group name="col2" />
                 </group>