46 lines
1.4 KiB
Python
46 lines
1.4 KiB
Python
# 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 os
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import alembic
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from alembic import config as alembic_config
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from alembic import migration as alembic_migration
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from kite.db.sqlalchemy import api as db_api
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def _alembic_config():
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path = os.path.join(os.path.dirname(__file__), 'alembic.ini')
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config = alembic_config.Config(path)
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return config
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def upgrade(revision=None, config=None):
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alembic.command.upgrade(config or _alembic_config(), revision or 'head')
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def downgrade(revision=None, config=None):
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alembic.command.downgrade(config or _alembic_config(), revision or 'base')
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def version(config=None):
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"""Current database version.
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:returns: Database version
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:rtype: string
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"""
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engine = db_api.get_engine()
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with engine.connect() as conn:
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context = alembic_migration.MigrationContext.configure(conn)
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return context.get_current_revision()
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