superset 2021-09-27_11-31_60dc453f4e2e_migrate_timeseries_limit_metric_to_ 源码
superset 2021-09-27_11-31_60dc453f4e2e_migrate_timeseries_limit_metricto 代码
文件路径：/superset/migrations/versions/2021-09-27_11-31_60dc453f4e2e_migrate_timeseries_limit_metricto.py
# Licensed to the Apache Software Foundation (ASF) under one
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# distributed with this work for additional information
# regarding copyright ownership. The ASF licenses this file
# to you under the Apache License, Version 2.0 (the
# "License"); you may not use this file except in compliance
# with the License. You may obtain a copy of the License at
#
# http://www.apache.org/licenses/LICENSE-2.0
#
# Unless required by applicable law or agreed to in writing,
# software distributed under the License is distributed on an
# "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
# KIND, either express or implied. See the License for the
# specific language governing permissions and limitations
# under the License.
"""migrate timeseries_limit_metric to legacy_order_by in pivot_table_v2
Revision ID: 60dc453f4e2e
Revises: 3ebe0993c770
Create Date: 2021-09-27 11:31:53.453164
"""
# revision identifiers, used by Alembic.
revision = "60dc453f4e2e"
down_revision = "3ebe0993c770"
import json
import re
from alembic import op
from sqlalchemy import and_, Column, Integer, String, Text
from sqlalchemy.ext.declarative import declarative_base
from superset import db
Base = declarative_base()
class Slice(Base):
__tablename__ = "slices"
id = Column(Integer, primary_key=True)
slice_name = Column(Text)
viz_type = Column(String(250))
params = Column(Text)
def upgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
where_clause = and_(
Slice.viz_type == "pivot_table_v2",
Slice.params.like('%"timeseries_limit_metric%'),
)
slices = session.query(Slice).filter(where_clause)
total = slices.count()
idx = 0
for slc in slices.yield_per(100):
idx += 1
print(f"Upgrading ({idx}/{total}): {slc.slice_name}#{slc.id}")
params = json.loads(slc.params)
params["legacy_order_by"] = params.pop("timeseries_limit_metric", None)
slc.params = json.dumps(params, sort_keys=True, indent=4)
session.commit()
session.close()
def downgrade():
# slices can't be downgraded
pass
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