Files
Mike Bayer 7bb0356e5f Provide working SQLA_VERSION attribute
Repairs the parsing within test_utils tests
to use the alphabetic-supporting version
parser inside of compat/utils.  Necessary in
order to work with beta / dev versions of SQLAlchemy
such as the current 1.0.0b1 release.

Change-Id: Ic1ae9fa18171b687b1bb9cfac7411fac14e29a0f
2015-03-18 10:43:57 +02:00

45 lines
1.5 KiB
Python

# Licensed under the Apache License, Version 2.0 (the "License"); you may
# not use this file except in compliance with the License. You may obtain
# a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing, software
# distributed under the License is distributed on an "AS IS" BASIS, WITHOUT
# WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied. See the
# License for the specific language governing permissions and limitations
# under the License.
import re
import sqlalchemy
SQLA_VERSION = tuple(
int(num) if re.match(r'^\d+$', num) else num
for num in sqlalchemy.__version__.split(".")
)
sqla_100 = SQLA_VERSION >= (1, 0, 0)
sqla_097 = SQLA_VERSION >= (0, 9, 7)
sqla_094 = SQLA_VERSION >= (0, 9, 4)
sqla_090 = SQLA_VERSION >= (0, 9, 0)
sqla_08 = SQLA_VERSION >= (0, 8)
def get_postgresql_enums(conn):
"""Return a list of ENUM type names on a Postgresql backend.
For SQLAlchemy 0.9 and lower, makes use of the semi-private
_load_enums() method of the Postgresql dialect. In SQLAlchemy
1.0 this feature is supported using get_enums().
This function may only be called when the given connection
is against the Postgresql backend. It will fail for other
kinds of backends.
"""
if sqla_100:
return [e['name'] for e in sqlalchemy.inspect(conn).get_enums()]
else:
return conn.dialect._load_enums(conn).keys()