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"""symmetric_transport
Revision ID: f638dbe2eb23
Revises: 15db7b91a97a
Create Date: 2017-03-09 09:38:59.513479
"""
# revision identifiers, used by Alembic.
revision = 'f638dbe2eb23'
down_revision = '15db7b91a97a'
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import ENUM
YESNO_NAME = 'yesno_values'
YESNO_VALUES = ['yes', 'no']
def upgrade():
############################# Enums ##############################
# yesno_values have already been created, so use postgres enum object
# type to get around "already created" issue - works okay with mysql
yesno_values = ENUM(*YESNO_VALUES, name=YESNO_NAME, create_type=False)
op.add_column('ps_transports', sa.Column('symmetric_transport', yesno_values))
op.add_column('ps_subscription_persistence', sa.Column('contact_uri', sa.String(256)))
def downgrade():
op.drop_column('ps_subscription_persistence', 'contact_uri')
op.drop_column('ps_transports', 'symmetric_transport')
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