RETIRED, Function as a Service for OpenStack
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# Copyright 2017 Catalyst IT Limited
#
# Licensed under the Apache License, Version 2.0 (the "License");
# you may not use this file except in compliance with the License.
# You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS,
# WITHOUT 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 oslo_db.sqlalchemy import models as oslo_models
import sqlalchemy as sa
from sqlalchemy.ext import declarative
from qinling import context
from qinling.utils import common
def id_column():
return sa.Column(
sa.String(36),
primary_key=True,
default=common.generate_unicode_uuid
)
def get_project_id():
return context.get_ctx().projectid
class _QinlingModelBase(oslo_models.ModelBase, oslo_models.TimestampMixin):
"""Base class for all Qinling SQLAlchemy DB Models."""
__table__ = None
__hash__ = object.__hash__
def __init__(self, **kwargs):
for key, value in kwargs.items():
setattr(self, key, value)
def __eq__(self, other):
if type(self) is not type(other):
return False
for col in self.__table__.columns:
# In case of single table inheritance a class attribute
# corresponding to a table column may not exist so we need
# to skip these attributes.
if (hasattr(self, col.name) and hasattr(other, col.name) and
getattr(self, col.name) != getattr(other, col.name)):
return False
return True
def __ne__(self, other):
return not self.__eq__(other)
def to_dict(self):
"""sqlalchemy based automatic to_dict method."""
d = {}
for col in self.__table__.columns:
d[col.name] = getattr(self, col.name)
common.datetime_to_str(d, 'created_at')
common.datetime_to_str(d, 'updated_at')
return d
def get_clone(self):
"""Clones current object, loads all fields and returns the result."""
m = self.__class__()
for col in self.__table__.columns:
if hasattr(self, col.name):
setattr(m, col.name, getattr(self, col.name))
setattr(m, 'created_at', getattr(self, 'created_at').isoformat(' '))
updated_at = getattr(self, 'updated_at')
if updated_at:
setattr(m, 'updated_at', updated_at.isoformat(' '))
return m
def __repr__(self):
return '%s %s' % (type(self).__name__, self.to_dict().__repr__())
QinlingModelBase = declarative.declarative_base(cls=_QinlingModelBase)
class QinlingSecureModelBase(QinlingModelBase):
"""Base class for all secure models."""
__abstract__ = True
id = id_column()
project_id = sa.Column(
sa.String(80),
nullable=False,
default=get_project_id
)