0119_2_5_0_add_updated_at_to_dagrun_and_ti.py

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"""Add updated_at column to DagRun and TaskInstance

Revision ID: ee8d93fcc81e
Revises: b0d31815b5a6
Create Date: 2022-09-08 19:08:37.623121

"""

from __future__ import annotations

import sqlalchemy as sa
from alembic import op

from airflow.migrations.db_types import TIMESTAMP

# revision identifiers, used by Alembic.
revision = 'ee8d93fcc81e'
down_revision = 'b0d31815b5a6'
branch_labels = None
depends_on = None
airflow_version = '2.5.0'


def upgrade():
    """Apply add updated_at column to DagRun and TaskInstance"""
    with op.batch_alter_table('task_instance') as batch_op:
        batch_op.add_column(sa.Column('updated_at', TIMESTAMP, default=sa.func.now))

    with op.batch_alter_table('dag_run') as batch_op:
        batch_op.add_column(sa.Column('updated_at', TIMESTAMP, default=sa.func.now))


def downgrade():
    """Unapply add updated_at column to DagRun and TaskInstance"""
    with op.batch_alter_table('task_instance') as batch_op:
        batch_op.drop_column('updated_at')

    with op.batch_alter_table('dag_run') as batch_op:
        batch_op.drop_column('updated_at')