Migrate object to OVO (6)

This commit will migrate:
- ValidationError and ValidationErrorList

Co-authored-By: Nguyen Van Trung <trungnv@vn.fujitsu.com>

Change-Id: I00d72d83dafb28a2d94aeabd844559be92d131f2
Implements: blueprint designate-rolling-upgrade

designate/objects/base.py

@@ -21,6 +21,7 @@ from oslo_log import log as logging
 from oslo_utils import timeutils
 
 from designate import exceptions
+from designate.objects import validation_error
 from designate.schema import validators
 from designate.schema import format
 from designate.i18n import _
@@ -311,10 +312,8 @@ class DesignateObject(object):
 
         make_class_validator(self)
 
-        # NOTE(kiall): We make use of the Object registry here in order to
-        #              avoid an impossible circular import.
-        ValidationErrorList = self.obj_cls_from_name('ValidationErrorList')
-        ValidationError = self.obj_cls_from_name('ValidationError')
+        ValidationErrorList = validation_error.ValidationErrorList
+        ValidationError = validation_error.ValidationError
 
         errors = ValidationErrorList()
 

designate/objects/ovo_base.py

@@ -22,8 +22,6 @@ from oslo_versionedobjects.base import VersionedObjectDictCompat as DictObjectMi
 from designate.i18n import _
 from designate.i18n import _LE
 from designate.objects import fields
-from designate.objects.validation_error import ValidationError
-from designate.objects.validation_error import ValidationErrorList
 from designate import exceptions
 
 LOG = logging.getLogger(__name__)
@@ -210,6 +208,10 @@ class DesignateObject(base.VersionedObject):
         return self._context
 
     def validate(self):
+        # NOTE(kiall, daidv): We make use of the Object registry here
+        # in order to avoid an impossible circular import.
+        ValidationErrorList = self.obj_cls_from_name('ValidationErrorList')
+        ValidationError = self.obj_cls_from_name('ValidationError')
         self.fields = self.FIELDS
         for name in self.fields:
             field = self.fields[name]

designate/objects/validation_error.py

@@ -11,16 +11,19 @@
 #    WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
 #    License for the specific language governing permissions and limitations
 #    under the License.
-from designate.objects import base
+from designate.objects import ovo_base as base
+from designate.objects import fields
 
 
+@base.DesignateRegistry.register
 class ValidationError(base.DesignateObject):
-    FIELDS = {
-        'path': {},
-        'message': {},
-        'validator': {},
-        'validator_value': {},
-        'raw': {},
+
+    fields = {
+        'path': fields.AnyField(nullable=True),
+        'message': fields.AnyField(nullable=True),
+        'validator': fields.AnyField(nullable=True),
+        'validator_value': fields.AnyField(nullable=True),
+        'raw': fields.AnyField(nullable=True),
     }
 
     @classmethod
@@ -40,5 +43,10 @@ class ValidationError(base.DesignateObject):
         return e
 
 
+@base.DesignateRegistry.register
 class ValidationErrorList(base.ListObjectMixin, base.DesignateObject):
     LIST_ITEM_TYPE = ValidationError
+
+    fields = {
+        'objects': fields.ListOfObjectsField('ValidationError'),
+    }