Update rent_payment.py

odex25_realstate/property_management/models/rent_payment.py

@@ -182,6 +182,24 @@ class RentPayment(models.Model):
             self.write(({'state': 'cancel'}))
         elif self.state == 'due':
             raise exceptions.ValidationError(_('Cannot Cancel This Payment Because it Due'))
+            
+    def action_validate2(self):
+        for record in self:
+            if record.contract_id.state == 'confirm':
+                rent_payment = [line for line in record.contract_id.rent_payment_ids.filtered(
+                    lambda payment: payment.due_date < record.due_date and
+                                    (not payment.invoice_id or
+                                     all(invoice.state == 'draft' for invoice in payment.invoice_id))
+                )]
+                # if len(rent_payment):
+                #     raise exceptions.ValidationError(
+                #         _("You must validate the previous rent payment and complete the process"))
+                if record.code == '/' or not record.code:
+                    code = self.env['ir.sequence'].next_by_code('rent.payment') or '/'
+                    record.write({'code': code})
+                record.write({"state": 'due'})
+            else:
+                raise exceptions.ValidationError(_("You Must Confirm Contract First"))
 
     def action_validate(self):
         for record in self: