Asterisk - The Open Source Telephony Project GIT-master-f36a736
f638dbe2eb23_symmetric_transport.py
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1"""symmetric_transport
2
3Revision ID: f638dbe2eb23
4Revises: 15db7b91a97a
5Create Date: 2017-03-09 09:38:59.513479
6
7"""
8
9# revision identifiers, used by Alembic.
10revision = 'f638dbe2eb23'
11down_revision = '15db7b91a97a'
12
13from alembic import op
14import sqlalchemy as sa
15from sqlalchemy.dialects.postgresql import ENUM
16
17YESNO_NAME = 'yesno_values'
18YESNO_VALUES = ['yes', 'no']
19
20def upgrade():
21 ############################# Enums ##############################
22
23 # yesno_values have already been created, so use postgres enum object
24 # type to get around "already created" issue - works okay with mysql
25 yesno_values = ENUM(*YESNO_VALUES, name=YESNO_NAME, create_type=False)
26
27 op.add_column('ps_transports', sa.Column('symmetric_transport', yesno_values))
28 op.add_column('ps_subscription_persistence', sa.Column('contact_uri', sa.String(256)))
29
31 op.drop_column('ps_subscription_persistence', 'contact_uri')
32 if op.get_context().bind.dialect.name == 'mssql':
33 op.drop_constraint('ck_ps_transports_symmetric_transport_yesno_values','ps_transports')
34 op.drop_column('ps_transports', 'symmetric_transport')