Source code for heat.db.sqlalchemy.types

#
#    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
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#    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
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from oslo_serialization import jsonutils
from sqlalchemy.dialects import mysql
from sqlalchemy import types


dumps = jsonutils.dumps
loads = jsonutils.loads


[docs]class LongText(types.TypeDecorator): impl = types.Text
[docs] def load_dialect_impl(self, dialect): if dialect.name == 'mysql': return dialect.type_descriptor(mysql.LONGTEXT()) else: return self.impl
[docs]class Json(LongText):
[docs] def process_bind_param(self, value, dialect): return dumps(value)
[docs] def process_result_value(self, value, dialect): if value is None: return None return loads(value)
[docs]class List(types.TypeDecorator): impl = types.Text
[docs] def load_dialect_impl(self, dialect): if dialect.name == 'mysql': return dialect.type_descriptor(mysql.LONGTEXT()) else: return self.impl
[docs] def process_bind_param(self, value, dialect): return dumps(value)
[docs] def process_result_value(self, value, dialect): if value is None: return None return loads(value)