"""add request -> task order relationship

Revision ID: 0845b2f0f401
Revises: 875e4b8a05fc
Create Date: 2018-08-22 09:58:43.770718

"""
from alembic import op
import sqlalchemy as sa


# revision identifiers, used by Alembic.
revision = '0845b2f0f401'
down_revision = '875e4b8a05fc'
branch_labels = None
depends_on = None


def upgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.add_column('requests', sa.Column('task_order_id', sa.Integer(), nullable=True))
    op.create_foreign_key(None, 'requests', 'task_order', ['task_order_id'], ['id'])
    # ### end Alembic commands ###


def downgrade():
    # ### commands auto generated by Alembic - please adjust! ###
    op.drop_constraint(None, 'requests', type_='foreignkey')
    op.drop_column('requests', 'task_order_id')
    # ### end Alembic commands ###