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256d9df3492_.py 760 B
"""empty message
Revision ID: 256d9df3492
Revises: bdf979c44e
Create Date: 2015-11-08 11:30:13.923165
"""
# revision identifiers, used by Alembic.
revision = '256d9df3492'
down_revision = 'bdf979c44e'
from alembic import op
import sqlalchemy as sa
def upgrade():
### commands auto generated by Alembic - please adjust! ###
op.add_column('events', sa.Column('current_topic_id', sa.Integer(), nullable=True))
op.create_foreign_key(None, 'events', 'topics', ['current_topic_id'], ['id'])
### end Alembic commands ###
def downgrade():
### commands auto generated by Alembic - please adjust! ###
op.drop_constraint(None, 'events', type_='foreignkey')
op.drop_column('events', 'current_topic_id')
### end Alembic commands ###