[FIX] pos_cash_rounding: fix cash rounding for cash method only

- Go to Point of Sale > Configuration > Settings & enable "Cash Rounding"
- Configure POS:
  * Enable Invoicing
  * Enable "Cash Rounding" and "Only on cash methods"
  * Select 0.05 HALF-UP Rounding Method
- Start POS session
- Select a Product and change its Price to a value that should be rounded (i.e. $ 16.51)
- Select a Customer
- Proceed to Payment
- Enable Invoice
- Select Bank Payment method
- Validate
No rounding is applied as expected, but the rounding line still appears on printed Invoice.

opw-2449222

closes odoo/odoo#65317

X-original-commit: b0eb0fe06a3a9946d2565c6f9efe67f760a3837f
Signed-off-by: pimodoo <pimodoo@users.noreply.github.com>
Signed-off-by: Anh Thao PHAM <kitan191@users.noreply.github.com>

1 files changed, 3 insertions, 1 deletions

diff --git a/addons/point_of_sale/models/pos_order.py b/addons/point_of_sale/models/pos_order.py
index a73f028aa26..79f5b3a6df6 100644
--- a/addons/point_of_sale/models/pos_order.py
+++ b/addons/point_of_sale/models/pos_order.py
@@ -402,7 +402,9 @@ class PosOrder(models.Model):
             'invoice_date': self.date_order.astimezone(timezone).date(),
             'fiscal_position_id': self.fiscal_position_id.id,
             'invoice_line_ids': [(0, None, self._prepare_invoice_line(line)) for line in self.lines],
-            'invoice_cash_rounding_id': self.config_id.rounding_method.id if self.config_id.cash_rounding else False
+            'invoice_cash_rounding_id': self.config_id.rounding_method.id
+            if self.config_id.cash_rounding and (not self.config_id.only_round_cash_method or any(p.payment_method_id.is_cash_count for p in self.payment_ids))
+            else False
         }
         return vals