fix error while create bill

1 files changed, 6 insertions, 2 deletions

diff --git a/indoteknik_custom/models/purchase_order.py b/indoteknik_custom/models/purchase_order.py
index 3a93c7db..c2a599ca 100755
--- a/indoteknik_custom/models/purchase_order.py
+++ b/indoteknik_custom/models/purchase_order.py
@@ -69,9 +69,13 @@ class PurchaseOrder(models.Model):
         journal = self.env['account.move'].with_context(default_move_type=move_type)._get_default_journal()
         if not journal:
             raise UserError(_('Please define an accounting purchase journal for the company %s (%s).') % (self.company_id.name, self.company_id.id))
-        
 
-        date_done = self.picking_ids[0].date_done
+        stock_picking = self.env['stock.picking'].search([
+            ('purchase_id', '=', self.id),
+            ('state', '=', 'done')
+        ], order='date_done desc', limit=1)
+
+        date_done = stock_picking.date_done
 
         day_extension = int(self.payment_term_id.line_ids.days)
         payment_schedule = date_done + timedelta(days=day_extension)