[FIX] lunch: convert date to string

To properly dump it in json

1 files changed, 1 insertions, 1 deletions

diff --git a/addons/lunch/models/lunch.py b/addons/lunch/models/lunch.py
index 4decde206fd..70b468367a4 100644
--- a/addons/lunch/models/lunch.py
+++ b/addons/lunch/models/lunch.py
@@ -101,7 +101,7 @@ class LunchOrder(models.Model):
                     'supplier': line.supplier.name,
                     'note': line.note,
                     'price': line.price,
-                    'date': line.date,
+                    'date': fields.Date.to_string(line.date),
                     'currency_id': line.currency_id.id,
                 }
             # sort the old lunch orders by (date, id)