[FIX] base_jsonify: In odoo 12, Date and Datetime fields values are datetime object

Convert fields.Date and fields.Datetime values to string when serializing to json

.isort.cfg

@@ -9,4 +9,4 @@ line_length=88
 known_odoo=odoo
 known_odoo_addons=odoo.addons
 sections=FUTURE,STDLIB,THIRDPARTY,ODOO,ODOO_ADDONS,FIRSTPARTY,LOCALFOLDER
-known_third_party=
+known_third_party=setuptools

base_jsonify/models/models.py

@@ -3,7 +3,7 @@
 # Raphaël Reverdy <raphael.reverdy@akretion.com>
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl.html).
 
-from odoo import api, models
+from odoo import api, fields, models
 from odoo.exceptions import UserError
 from odoo.tools.translate import _
 
@@ -69,6 +69,10 @@ class Base(models.AbstractModel):
                     value = rec[field_name]
                     if value is False and field_type != "boolean":
                         value = None
+                    elif field_type == "date":
+                        value = fields.Date.to_string(value)
+                    elif field_type == "datetime":
+                        value = fields.Datetime.to_string(value)
                     res[json_key] = value
             result.append(res)
         return result

base_jsonify/tests/test_get_parser.py

@@ -1,6 +1,7 @@
 # Copyright 2017 ACSONE SA/NV
 # License AGPL-3.0 or later (http://www.gnu.org/licenses/agpl).
 
+from odoo import fields
 from odoo.tests.common import TransactionCase
 
 
@@ -59,6 +60,8 @@ class TestParser(TransactionCase):
             ("country_id:country", ["code", "name"]),
             "active",
             ("category_id", ["name"]),
+            "create_date",
+            "date",
         ]
         partner = self.env["res.partner"].create(
             {
@@ -76,6 +79,7 @@ class TestParser(TransactionCase):
                         },
                     )
                 ],
+                "date": fields.Date.today(),
             }
         )
         expected_json = {
@@ -96,6 +100,8 @@ class TestParser(TransactionCase):
                     "email": None,
                 }
             ],
+            "create_date": fields.Datetime.to_string(partner.create_date),
+            "date": fields.Date.to_string(partner.date),
         }
         json_partner = partner.jsonify(parser)