[IMP] introduce fields in_force_same_lot and out_force_same_lot

Those fields in the rma.operation allows us to control if we want to ensure that the
same lot as the one indicated in the RMA should be used in deliveries to customers
and receipts from suppliers

rma/models/rma_operation.py

@@ -94,3 +94,11 @@ def _default_routes(self):
         required=True,
         default=lambda self: self.env.user.company_id,
     )
+    in_force_same_lot = fields.Boolean(
+        "Forces the same lot to be used "
+        "in outgoing pickings as the one indicated in the RMA"
+    )
+    out_force_same_lot = fields.Boolean(
+        "Forces the same lot to be used "
+        "in incoming pickings as the one indicated in the RMA"
+    )

rma/models/stock_move.py

@@ -62,6 +62,7 @@ def _get_available_quantity(
             not lot_id
             and self.rma_line_id.lot_id
             and self.location_id.usage == "internal"
+            and self.rma_line_id.operation_id.out_force_same_lot
         ):
             # In supplier RMA deliveries we can only send the RMA lot/serial.
             lot_id = self.rma_line_id.lot_id
@@ -88,6 +89,7 @@ def _update_reserved_quantity(
             not lot_id
             and self.rma_line_id.lot_id
             and self.location_id.usage == "internal"
+            and self.rma_line_id.operation_id.out_force_same_lot
         ):
             # In supplier RMA deliveries we can only send the RMA lot/serial.
             lot_id = self.rma_line_id.lot_id

rma/views/rma_operation_view.xml

@@ -53,6 +53,10 @@
                                 name="customer_to_supplier"
                                 attrs="{'invisible':[('type', '=', 'supplier')]}"
                             />
+                            <field
+                                name="in_force_same_lot"
+                                groups="stock.group_production_lot"
+                            />
                         </group>
                         <group name="outbound" string="Outbound">
                             <field name="out_route_id" />
@@ -61,6 +65,10 @@
                                 name="supplier_to_customer"
                                 attrs="{'invisible':[('type', '=', 'customer')]}"
                             />
+                            <field
+                                name="out_force_same_lot"
+                                groups="stock.group_production_lot"
+                            />
                         </group>
                     </group>
                 </sheet>

rma/wizards/rma_make_picking.py

@@ -210,48 +210,48 @@ def action_create_picking(self):
         else:
             pickings = self.mapped("item_ids.line_id")._get_in_pickings()
             action = self.item_ids.line_id.action_view_in_shipments()
-        if picking_type == "incoming":
-            # Force the reservation of the RMA specific lot for incoming shipments.
-            # FIXME: still needs fixing, not reserving appropriate serials.
-            for move in pickings.move_ids.filtered(
-                lambda x: x.state not in ("draft", "cancel", "done", "waiting")
-                and x.rma_line_id
-                and x.product_id.tracking in ("lot", "serial")
-                and x.rma_line_id.lot_id
-            ):
-                # Force the reservation of the RMA specific lot for incoming shipments.
-                move.move_line_ids.unlink()
-                if move.product_id.tracking == "serial":
-                    move.write(
-                        {
-                            "lot_ids": [(6, 0, move.rma_line_id.lot_id.ids)],
-                        }
-                    )
-                    move.move_line_ids.write(
-                        {
-                            "reserved_uom_qty": 1,
-                            "qty_done": 0,
-                        }
-                    )
-                elif move.product_id.tracking == "lot":
-                    if picking_type == "incoming":
-                        qty = self.item_ids.filtered(
-                            lambda x: x.line_id.id == move.rma_line_id.id
-                        ).qty_to_receive
-                    else:
-                        qty = self.item_ids.filtered(
-                            lambda x: x.line_id.id == move.rma_line_id.id
-                        ).qty_to_deliver
-                    move_line_data = move._prepare_move_line_vals()
-                    move_line_data.update(
-                        {
-                            "lot_id": move.rma_line_id.lot_id.id,
-                            "product_uom_id": move.product_id.uom_id.id,
-                            "qty_done": 0,
-                            "reserved_uom_qty": qty,
-                        }
-                    )
-                    move_line_model.create(move_line_data)
+
+        for move in pickings.move_ids.filtered(
+            lambda x: x.state not in ("draft", "cancel", "done", "waiting")
+            and x.rma_line_id
+            and x.product_id.tracking in ("lot", "serial")
+            and x.rma_line_id.lot_id
+            and x.rma_line_id.operation_id.in_force_same_lot
+            and move.location_dest_id.usage == "internal"
+        ):
+            # Force the reservation of the RMA specific lot for incoming shipments if required.
+            move.move_line_ids.unlink()
+            if move.product_id.tracking == "serial":
+                move.write(
+                    {
+                        "lot_ids": [(6, 0, move.rma_line_id.lot_id.ids)],
+                    }
+                )
+                move.move_line_ids.write(
+                    {
+                        "reserved_uom_qty": 1,
+                        "qty_done": 0,
+                    }
+                )
+            elif move.product_id.tracking == "lot":
+                if picking_type == "incoming":
+                    qty = self.item_ids.filtered(
+                        lambda x: x.line_id.id == move.rma_line_id.id
+                    ).qty_to_receive
+                else:
+                    qty = self.item_ids.filtered(
+                        lambda x: x.line_id.id == move.rma_line_id.id
+                    ).qty_to_deliver
+                move_line_data = move._prepare_move_line_vals()
+                move_line_data.update(
+                    {
+                        "lot_id": move.rma_line_id.lot_id.id,
+                        "product_uom_id": move.product_id.uom_id.id,
+                        "qty_done": 0,
+                        "reserved_uom_qty": qty,
+                    }
+                )
+                move_line_model.create(move_line_data)
 
             pickings.with_context(force_no_bypass_reservation=True).action_assign()
         return action