51 lines
1.5 KiB
Python
51 lines
1.5 KiB
Python
#
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# Licensed under the Apache License, Version 2.0 (the "License"); you may
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# not use this file except in compliance with the License. You may obtain
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# 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, WITHOUT
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# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
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# License for the specific language governing permissions and limitations
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# under the License.
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from json import dumps
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from json import loads
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from sqlalchemy import types
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from sqlalchemy.dialects import mysql
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class LongText(types.TypeDecorator):
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impl = types.Text
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def load_dialect_impl(self, dialect):
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if dialect.name == 'mysql':
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return dialect.type_descriptor(mysql.LONGTEXT())
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else:
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return self.impl
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class Json(LongText):
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def process_bind_param(self, value, dialect):
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return dumps(value)
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def process_result_value(self, value, dialect):
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return loads(value)
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def associate_with(sqltype):
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# TODO(leizhang) When we removed sqlalchemy 0.7 dependence
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# we can import MutableDict directly and remove ./mutable.py
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try:
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from sqlalchemy.ext.mutable import MutableDict as sa_MutableDict
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sa_MutableDict.associate_with(Json)
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except ImportError:
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from heat.db.sqlalchemy.mutable import MutableDict
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MutableDict.associate_with(Json)
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associate_with(LongText)
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associate_with(Json)
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