59f8b854a7
This patch incorporates two parts: 1. Fixed length of indexed fields in models.py. This was already done in Alembic migration scripts, but missed the models.py 2. Fixed bug in DB migration testing where we checked current version of database but due a race condidition queried wrong (SQLite instead of pre-configured MySQL) database. Also, a small change is introduced in session.py to adopt protection of session facade from other projects. Change-Id: Ieb96d53afe0d6e4b7ebc306933ed9f781d7b10b8
86 lines
2.7 KiB
Python
86 lines
2.7 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 murano.db import session as db_session
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def get_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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config.set_main_option('script_location',
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'murano.db.migration:alembic_migrations')
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return config
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def version(engine=None):
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"""Returns current database version."""
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engine = engine or db_session.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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def upgrade(revision, config=None):
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"""Used for upgrading database.
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:param version: Desired database version
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:type version: string
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"""
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revision = revision or 'head'
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config = config or get_alembic_config()
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alembic.command.upgrade(config, revision or 'head')
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def downgrade(revision, config=None):
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"""Used for downgrading database.
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:param version: Desired database version7
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:type version: string
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"""
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revision = revision or 'base'
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config = config or get_alembic_config()
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return alembic.command.downgrade(config, revision)
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def stamp(revision, config=None):
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"""Stamps database with provided revision.
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Don't run any migrations.
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:param revision: Should match one from repository or head - to stamp
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database with most recent revision
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:type revision: string
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"""
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config = config or get_alembic_config()
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return alembic.command.stamp(config, revision=revision)
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def revision(message=None, autogenerate=False, config=None):
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"""Creates template for migration.
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:param message: Text that will be used for migration title
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:type message: string
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:param autogenerate: If True - generates diff based on current database
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state
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:type autogenerate: bool
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"""
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config = config or get_alembic_config()
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return alembic.command.revision(config, message=message,
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autogenerate=autogenerate)
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