[FIX] base: lighten default values validation in ir.values

Rev acd8c4d prevents the creation of default values for fiels that
are not defined. This is too restrictive because of the following
points:
    - one may want to create default values for that are yet to be
      defined
    - "fake" default fields used in res.config that do not point to real
      fields

The initial scenario this revision was trying to fix is the creation of
wrong default values through studio. This scenario is still fixed, as it
concerns the last `except` branch.

The tests have been updated to reflect these changes.

odoo/addons/base/ir/ir_values.py

@@ -7,6 +7,10 @@
 from odoo.exceptions import AccessError, MissingError, ValidationError
 from odoo.tools import pickle
 
+import logging
+_logger = logging.getLogger(__name__)
+
+
 EXCLUDED_FIELDS = set(('code',
     'report_sxw_content', 'report_rml_content', 'report_sxw', 'report_rml',
     'report_sxw_content_data', 'report_rml_content_data', 'search_view', ))
@@ -224,7 +228,7 @@ def set_default(self, model, field_name, value, for_all_users=True, company_id=F
             field = self.env[model]._fields[field_name]
             field.convert_to_cache(value, self.browse())
         except KeyError:
-            raise ValidationError(_("Invalid field %s.%s") % (model, field_name))
+            _logger.warning("Invalid field %s.%s", model, field_name)
         except Exception:
             raise ValidationError(_("Invalid value for %s.%s: %s") % (model, field_name, value))
 

odoo/addons/base/tests/test_ir_values.py

@@ -1,6 +1,7 @@
 # -*- coding: utf-8 -*-
 # Part of Odoo. See LICENSE file for full copyright and licensing details.
 
+from odoo import tools
 from odoo.exceptions import ValidationError
 from odoo.tests.common import TransactionCase
 
@@ -41,11 +42,12 @@ def test_defaults(self):
         self.assertTrue(d, "At least one value should be retrieved for this model.")
         self.assertEqual(d[2], '007', "Can't retrieve the created default value.")
 
-        # create invalid defaults
-        with self.assertRaises(ValidationError):
+        # create valid but unusable defaults, a ValidationError should not be thrown
+        with tools.mute_logger('odoo.addons.base.ir.ir_values'):
             ir_values.set_default('unknown_model', 'unknown_field', 42)
-        with self.assertRaises(ValidationError):
             ir_values.set_default('res.partner', 'unknown_field', 42)
+
+        # create invalid defaults
         with self.assertRaises(ValidationError):
             ir_values.set_default('res.partner', 'lang', 'some_LANG')
         with self.assertRaises(ValidationError):