airflow 0106_2_3_0_update_migration_for_fab_tables_to_add_missing_constraints 源码
airflow 0106_2_3_0_update_migration_for_fab_tables_to_add_missing_constraints 代码
文件路径:/airflow/migrations/versions/0106_2_3_0_update_migration_for_fab_tables_to_add_missing_constraints.py
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# to you under the Apache License, Version 2.0 (the
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"""Update migration for FAB tables to add missing constraints
Revision ID: 909884dea523
Revises: 48925b2719cb
Create Date: 2022-03-21 08:33:01.635688
"""
from __future__ import annotations
import sqlalchemy as sa
from alembic import op
from airflow.migrations.utils import get_mssql_table_constraints
# revision identifiers, used by Alembic.
revision = '909884dea523'
down_revision = '48925b2719cb'
branch_labels = None
depends_on = None
airflow_version = '2.3.0'
def upgrade():
"""Apply Update migration for FAB tables to add missing constraints"""
conn = op.get_bind()
if conn.dialect.name == 'sqlite':
op.execute('PRAGMA foreign_keys=OFF')
with op.batch_alter_table('ab_view_menu', schema=None) as batch_op:
batch_op.create_unique_constraint(batch_op.f('ab_view_menu_name_uq'), ['name'])
op.execute('PRAGMA foreign_keys=ON')
elif conn.dialect.name == 'mysql':
with op.batch_alter_table('ab_register_user', schema=None) as batch_op:
batch_op.alter_column('username', existing_type=sa.String(256), nullable=False)
batch_op.alter_column('email', existing_type=sa.String(256), nullable=False)
with op.batch_alter_table('ab_user', schema=None) as batch_op:
batch_op.alter_column('username', existing_type=sa.String(256), nullable=False)
batch_op.alter_column('email', existing_type=sa.String(256), nullable=False)
elif conn.dialect.name == 'mssql':
with op.batch_alter_table('ab_register_user') as batch_op:
# Drop the unique constraint on username and email
constraints = get_mssql_table_constraints(conn, 'ab_register_user')
for k, _ in constraints.get('UNIQUE').items():
batch_op.drop_constraint(k, type_='unique')
batch_op.alter_column('username', existing_type=sa.String(256), nullable=False)
batch_op.create_unique_constraint(None, ['username'])
batch_op.alter_column('email', existing_type=sa.String(256), nullable=False)
with op.batch_alter_table('ab_user') as batch_op:
# Drop the unique constraint on username and email
constraints = get_mssql_table_constraints(conn, 'ab_user')
for k, _ in constraints.get('UNIQUE').items():
batch_op.drop_constraint(k, type_='unique')
batch_op.alter_column('username', existing_type=sa.String(256), nullable=False)
batch_op.create_unique_constraint(None, ['username'])
batch_op.alter_column('email', existing_type=sa.String(256), nullable=False)
batch_op.create_unique_constraint(None, ['email'])
def downgrade():
"""Unapply Update migration for FAB tables to add missing constraints"""
conn = op.get_bind()
if conn.dialect.name == 'sqlite':
op.execute('PRAGMA foreign_keys=OFF')
with op.batch_alter_table('ab_view_menu', schema=None) as batch_op:
batch_op.drop_constraint('ab_view_menu_name_uq', type_='unique')
op.execute('PRAGMA foreign_keys=ON')
elif conn.dialect.name == 'mysql':
with op.batch_alter_table('ab_user', schema=None) as batch_op:
batch_op.alter_column('email', existing_type=sa.String(256), nullable=True)
batch_op.alter_column('username', existing_type=sa.String(256), nullable=True, unique=True)
with op.batch_alter_table('ab_register_user', schema=None) as batch_op:
batch_op.alter_column('email', existing_type=sa.String(256), nullable=True)
batch_op.alter_column('username', existing_type=sa.String(256), nullable=True, unique=True)
elif conn.dialect.name == 'mssql':
with op.batch_alter_table('ab_register_user') as batch_op:
# Drop the unique constraint on username and email
constraints = get_mssql_table_constraints(conn, 'ab_register_user')
for k, _ in constraints.get('UNIQUE').items():
batch_op.drop_constraint(k, type_='unique')
batch_op.alter_column('username', existing_type=sa.String(256), nullable=False, unique=True)
batch_op.create_unique_constraint(None, ['username'])
batch_op.alter_column('email', existing_type=sa.String(256), nullable=False, unique=True)
with op.batch_alter_table('ab_user') as batch_op:
# Drop the unique constraint on username and email
constraints = get_mssql_table_constraints(conn, 'ab_user')
for k, _ in constraints.get('UNIQUE').items():
batch_op.drop_constraint(k, type_='unique')
batch_op.alter_column('username', existing_type=sa.String(256), nullable=True)
batch_op.create_unique_constraint(None, ['username'])
batch_op.alter_column('email', existing_type=sa.String(256), nullable=True, unique=True)
batch_op.create_unique_constraint(None, ['email'])
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