43 lines
1.3 KiB
Python
43 lines
1.3 KiB
Python
# Copyright 2013 Mirantis, Inc.
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#
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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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import json
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from sqlalchemy.types import TypeDecorator, VARCHAR
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class JsonField(TypeDecorator):
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impl = VARCHAR
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def process_bind_param(self, value, dialect):
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if value is not None:
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value = json.dumps(value)
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return value
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def process_result_value(self, value, dialect):
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if value is not None:
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value = json.loads(value)
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return value
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class ListField(JsonField):
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def process_bind_param(self, value, dialect):
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value = list(value) if value else []
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super(ListField, self).process_bind_param(value, dialect)
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def process_result_value(self, value, dialect):
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value = super(ListField, self).process_bind_param(value, dialect)
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return list(value) if value else []
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