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"""Add allow_reload to ps_transports
Revision ID: 3bcc0b5bc2c9
Revises: dbc44d5a908
Create Date: 2016-02-05 17:43:39.183785
"""
# revision identifiers, used by Alembic.
revision = '3bcc0b5bc2c9'
down_revision = 'dbc44d5a908'
from alembic import op
import sqlalchemy as sa
from sqlalchemy.dialects.postgresql import ENUM
YESNO_NAME = 'yesno_values'
YESNO_VALUES = ['yes', 'no']
def upgrade():
yesno_values = ENUM(*YESNO_VALUES, name=YESNO_NAME, create_type=False)
op.add_column('ps_transports', sa.Column('allow_reload', yesno_values))
def downgrade():
if op.get_context().bind.dialect.name == 'mssql':
op.drop_constraint('ck_ps_transports_allow_reload_yesno_values','ps_transports')
op.drop_column('ps_transports', 'allow_reload')
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