[FIX] point_of_sale: apply payment terms on invoices from POS

When an invoice is generated from the POS there are no payment terms and
due dates put on the invoices. It was not really an issue before the pay
later feature, but now it is needed.

closes odoo/odoo#100189

X-original-commit: ed49bc766cf6956691ca87be50f352247828453f
Signed-off-by: Trinh Jacky (trj) <trj@odoo.com>

addons/point_of_sale/models/pos_order.py

@@ -607,6 +607,7 @@ class PosOrder(models.Model):
             'invoice_date': invoice_date.astimezone(timezone).date(),
             'fiscal_position_id': self.fiscal_position_id.id,
             'invoice_line_ids': self._prepare_invoice_lines(),
+            'invoice_payment_term_id': self.partner_id.property_payment_term_id.id or 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

addons/pos_sale/models/pos_order.py

@@ -33,6 +33,9 @@ class PosOrder(models.Model):
         invoice_vals['team_id'] = self.crm_team_id
         addr = self.partner_id.address_get(['delivery'])
         invoice_vals['partner_shipping_id'] = addr['delivery']
+        sale_orders = self.lines.mapped('sale_order_origin_id')
+        if sale_orders and sale_orders[0].payment_term_id:
+            invoice_vals['invoice_payment_term_id'] = sale_orders[0].payment_term_id.id,
         return invoice_vals
 
     @api.model