superset 2017-12-08_08-19_67a6ac9b727b_update_spatial_params 源码
superset 2017-12-08_08-19_67a6ac9b727b_update_spatial_params 代码
文件路径：/superset/migrations/versions/2017-12-08_08-19_67a6ac9b727b_update_spatial_params.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.
"""update_spatial_params
Revision ID: 67a6ac9b727b
Revises: 4736ec66ce19
Create Date: 2017-12-08 08:19:21.148775
"""
import json
from alembic import op
from sqlalchemy import Column, Integer, String, Text
from sqlalchemy.ext.declarative import declarative_base
from superset import db
# revision identifiers, used by Alembic.
revision = "67a6ac9b727b"
down_revision = "4736ec66ce19"
Base = declarative_base()
class Slice(Base):
__tablename__ = "slices"
id = Column(Integer, primary_key=True)
viz_type = Column(String(250))
params = Column(Text)
def upgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
for slc in session.query(Slice).filter(Slice.viz_type.like("deck_%")):
params = json.loads(slc.params)
if params.get("latitude"):
params["spatial"] = {
"lonCol": params.get("longitude"),
"latCol": params.get("latitude"),
"type": "latlong",
}
del params["latitude"]
del params["longitude"]
slc.params = json.dumps(params)
session.merge(slc)
session.commit()
session.close()
def downgrade():
pass
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