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100 lines
3.1 KiB
Python
100 lines
3.1 KiB
Python
# Licensed to the Apache Software Foundation (ASF) under one
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# or more contributor license agreements. See the NOTICE file
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# distributed with this work for additional information
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# regarding copyright ownership. The ASF licenses this file
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# to you under the Apache License, Version 2.0 (the
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# "License"); you may not use this file except in compliance
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# with the License. You may obtain a copy of the License at
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#
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# http://www.apache.org/licenses/LICENSE-2.0
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#
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# Unless required by applicable law or agreed to in writing,
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# software distributed under the License is distributed on an
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# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
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# KIND, either express or implied. See the License for the
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# specific language governing permissions and limitations
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# under the License.
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"""add missing uuid column
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Revision ID: c501b7c653a3
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Revises: 070c043f2fdb
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Create Date: 2021-02-18 09:13:00.028317
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"""
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# revision identifiers, used by Alembic.
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revision = "c501b7c653a3"
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down_revision = "070c043f2fdb"
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import logging
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from uuid import uuid4
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import sqlalchemy as sa
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from alembic import op
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from sqlalchemy.dialects import mysql
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from sqlalchemy.engine.reflection import Inspector
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from sqlalchemy.orm import load_only
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from sqlalchemy_utils import UUIDType
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from superset import db
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from superset.migrations.versions.b56500de1855_add_uuid_column_to_import_mixin import (
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add_uuids,
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models,
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update_dashboards,
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)
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def has_uuid_column(table_name, bind):
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inspector = Inspector.from_engine(bind)
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columns = {column["name"] for column in inspector.get_columns(table_name)}
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has_uuid_column = "uuid" in columns
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if has_uuid_column:
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logging.info("Table %s already has uuid column, skipping...", table_name)
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else:
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logging.info("Table %s doesn't have uuid column, adding...", table_name)
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return has_uuid_column
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def upgrade():
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bind = op.get_bind()
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session = db.Session(bind=bind)
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for table_name, model in models.items():
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# this script adds missing uuid columns
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if has_uuid_column(table_name, bind):
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continue
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with op.batch_alter_table(table_name) as batch_op:
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batch_op.add_column(
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sa.Column(
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"uuid",
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UUIDType(binary=True),
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primary_key=False,
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default=uuid4,
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),
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)
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add_uuids(model, table_name, session)
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# add uniqueness constraint
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with op.batch_alter_table(table_name) as batch_op:
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# batch mode is required for sqllite
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batch_op.create_unique_constraint(f"uq_{table_name}_uuid", ["uuid"])
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# add UUID to Dashboard.position_json; this function is idempotent
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# so we can call it for all objects
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slice_uuid_map = {
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slc.id: slc.uuid
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for slc in session.query(models["slices"])
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.options(load_only("id", "uuid"))
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.all()
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}
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update_dashboards(session, slice_uuid_map)
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def downgrade() -> None:
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"""
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This script fixes b56500de1855_add_uuid_column_to_import_mixin.py by adding any
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uuid columns that might have been skipped. There's no downgrade.
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"""
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pass
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