1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
|
# 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 datetime
import sqlalchemy as sql
def upgrade(migrate_engine):
meta = sql.MetaData()
meta.bind = migrate_engine
password = sql.Table('password', meta, autoload=True)
# Because it's difficult to get a timestamp server default working among
# all of the supported databases and versions, I'm choosing to drop and
# then recreate the column as I think this is a more cleaner option. This
# will only impact operators that have already deployed the 105 migration;
# resetting the password created_at for security compliance features, if
# enabled.
password.c.created_at.drop()
# sqlite doesn't support server_default=sql.func.now(), so skipping.
if migrate_engine.name == 'sqlite':
created_at = sql.Column('created_at', sql.TIMESTAMP, nullable=True)
else:
# Changing type to timestamp as mysql 5.5 and older doesn't support
# datetime defaults.
created_at = sql.Column('created_at', sql.TIMESTAMP, nullable=False,
default=datetime.datetime.utcnow,
server_default=sql.func.now())
password.create_column(created_at)
|
