ca1bd0f76a
Common oslo code from sahara.openstack.common.db was removed and replaced by usage of oslo.db library. Implements: blueprint oslo-db Change-Id: Ie30a469e16818e414cfa734d9a6b1176398cc1a4
48 lines
1.5 KiB
Python
48 lines
1.5 KiB
Python
# Copyright (c) 2013 Mirantis Inc.
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#
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# Licensed under the Apache License, Version 2.0 (the "License");
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# you may not use this file except in compliance with the License.
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# You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing, software
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# distributed under the License is distributed on an "AS IS" BASIS,
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# WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or
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# implied.
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# See the License for the specific language governing permissions and
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# limitations under the License.
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from oslo.db.sqlalchemy import models as oslo_models
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from sqlalchemy.ext import declarative
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from sqlalchemy.orm import attributes
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class _SaharaBase(oslo_models.ModelBase, oslo_models.TimestampMixin):
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"""Base class for all SQLAlchemy DB Models."""
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def to_dict(self):
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"""sqlalchemy based automatic to_dict method."""
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d = {}
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# if a column is unloaded at this point, it is
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# probably deferred. We do not want to access it
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# here and thereby cause it to load...
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unloaded = attributes.instance_state(self).unloaded
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for col in self.__table__.columns:
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if col.name not in unloaded:
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d[col.name] = getattr(self, col.name)
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datetime_to_str(d, 'created_at')
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datetime_to_str(d, 'updated_at')
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return d
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def datetime_to_str(dct, attr_name):
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if dct.get(attr_name) is not None:
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dct[attr_name] = dct[attr_name].isoformat(' ')
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SaharaBase = declarative.declarative_base(cls=_SaharaBase)
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