de83fac997e2_add_bundle_to_ps_endpoints.py

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"""add bundle to ps_endpoints
 
Revision ID: de83fac997e2
Revises: 20abce6d1e3c
Create Date: 2017-10-24 17:10:57.242020
 
"""
 
# revision identifiers, used by Alembic.
revision = 'de83fac997e2'
down_revision = '20abce6d1e3c'
 
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_endpoints', sa.Column('bundle', yesno_values))
 
def downgrade():
    context = op.get_context()
 
    if context.bind.dialect.name == 'mssql':
        op.drop_constraint('ck_ps_endpoints_bundle_yesno_values', 'ps_endpoints')
    op.drop_column('ps_endpoints', 'bundle')