コード例 #1
0
def heal():
    # This is needed else the heal script will start spewing
    # a lot of pointless warning messages from alembic.
    LOG.setLevel(logging.INFO)
    if context.is_offline_mode():
        return
    models_metadata = frozen_models.get_metadata()
    # Compare metadata from models and metadata from migrations
    # Diff example:
    # [ ( 'add_table',
    #      Table('bat', MetaData(bind=None),
    #            Column('info', String(), table=<bat>), schema=None)),
    # ( 'remove_table',
    #   Table(u'bar', MetaData(bind=None),
    #         Column(u'data', VARCHAR(), table=<bar>), schema=None)),
    # ( 'add_column',
    #    None,
    #   'foo',
    #   Column('data', Integer(), table=<foo>)),
    # ( 'remove_column',
    #   None,
    #  'foo',
    #  Column(u'old_data', VARCHAR(), table=None)),
    # [ ( 'modify_nullable',
    #     None,
    #     'foo',
    #     u'x',
    #     { 'existing_server_default': None,
    #     'existing_type': INTEGER()},
    #     True,
    #     False)]]
    opts = {
        'compare_type': _compare_type,
        'compare_server_default': _compare_server_default,
    }
    mc = alembic.migration.MigrationContext.configure(op.get_bind(), opts=opts)
    set_storage_engine(op.get_bind(), "InnoDB")
    diff1 = autogen.compare_metadata(mc, models_metadata)
    # Alembic does not contain checks for foreign keys. Because of that it
    # checks separately.
    added_fks, dropped_fks = check_foreign_keys(models_metadata)
    diff = dropped_fks + diff1 + added_fks
    # For each difference run command
    for el in diff:
        execute_alembic_command(el)
コード例 #2
0
ファイル: heal_script.py プロジェクト: AsherBond/quantum
def heal():
    # This is needed else the heal script will start spewing
    # a lot of pointless warning messages from alembic.
    LOG.setLevel(logging.INFO)
    if context.is_offline_mode():
        return
    models_metadata = frozen_models.get_metadata()
    # Compare metadata from models and metadata from migrations
    # Diff example:
    # [ ( 'add_table',
    #      Table('bat', MetaData(bind=None),
    #            Column('info', String(), table=<bat>), schema=None)),
    # ( 'remove_table',
    #   Table(u'bar', MetaData(bind=None),
    #         Column(u'data', VARCHAR(), table=<bar>), schema=None)),
    # ( 'add_column',
    #    None,
    #   'foo',
    #   Column('data', Integer(), table=<foo>)),
    # ( 'remove_column',
    #   None,
    #  'foo',
    #  Column(u'old_data', VARCHAR(), table=None)),
    # [ ( 'modify_nullable',
    #     None,
    #     'foo',
    #     u'x',
    #     { 'existing_server_default': None,
    #     'existing_type': INTEGER()},
    #     True,
    #     False)]]
    opts = {
        'compare_type': _compare_type,
        'compare_server_default': _compare_server_default,
    }
    mc = alembic.migration.MigrationContext.configure(op.get_bind(), opts=opts)

    diff1 = autogen.compare_metadata(mc, models_metadata)
    # Alembic does not contain checks for foreign keys. Because of that it
    # checks separately.
    diff2 = check_foreign_keys(models_metadata)
    diff = diff1 + diff2
    # For each difference run command
    for el in diff:
        execute_alembic_command(el)