superset 2018-06-14_14-31_80a67c5192fa_single_pie_chart_metric 源码
superset 2018-06-14_14-31_80a67c5192fa_single_pie_chart_metric 代码
文件路径：/superset/migrations/versions/2018-06-14_14-31_80a67c5192fa_single_pie_chart_metric.py
# Licensed to the Apache Software Foundation (ASF) under one
# or more contributor license agreements. See the NOTICE file
# 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.
"""single pie chart metric
Revision ID: 80a67c5192fa
Revises: afb7730f6a9c
Create Date: 2018-06-14 14:31:06.624370
"""
# revision identifiers, used by Alembic.
revision = "80a67c5192fa"
down_revision = "afb7730f6a9c"
import json
from alembic import op
from sqlalchemy import 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)
params = Column(Text)
viz_type = Column(String(250))
def upgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
for slc in session.query(Slice).filter(Slice.viz_type == "pie").all():
try:
params = json.loads(slc.params)
if "metrics" in params:
if params["metrics"]:
params["metric"] = params["metrics"][0]
del params["metrics"]
slc.params = json.dumps(params, sort_keys=True)
except Exception:
pass
session.commit()
session.close()
def downgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
for slc in session.query(Slice).filter(Slice.viz_type == "pie").all():
try:
params = json.loads(slc.params)
if "metric" in params:
if params["metric"]:
params["metrics"] = [params["metric"]]
del params["metric"]
slc.params = json.dumps(params, sort_keys=True)
except Exception:
pass
session.commit()
session.close()
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