superset 2018-11-12_13-31_4ce8df208545_migrate_time_range_for_default_filters 源码
superset 2018-11-12_13-31_4ce8df208545_migrate_time_range_for_default_filters 代码
文件路径:/superset/migrations/versions/2018-11-12_13-31_4ce8df208545_migrate_time_range_for_default_filters.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.
"""empty message
Revision ID: 4ce8df208545
Revises: 55e910a74826
Create Date: 2018-11-12 13:31:07.578090
"""
# revision identifiers, used by Alembic.
import json
from alembic import op
from sqlalchemy import Column, Integer, Text
from sqlalchemy.ext.declarative import declarative_base
from superset import db
revision = "4ce8df208545"
down_revision = "55e910a74826"
Base = declarative_base()
class Dashboard(Base):
"""Declarative class to do query in upgrade"""
__tablename__ = "dashboards"
id = Column(Integer, primary_key=True)
json_metadata = Column(Text)
def upgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
dashboards = session.query(Dashboard).all()
for i, dashboard in enumerate(dashboards):
print("scanning dashboard ({}/{}) >>>>".format(i + 1, len(dashboards)))
if dashboard.json_metadata:
json_metadata = json.loads(dashboard.json_metadata)
has_update = False
# default_filters: it may define time_range filter
default_filters = json_metadata.get("default_filters")
if default_filters and default_filters != "{}":
try:
filters = json.loads(default_filters)
keys = [
key
for key, val in filters.items()
if val.get("__from") or val.get("__to")
]
if len(keys):
for key in keys:
val = filters[key]
__from = val.pop("__from", "")
__to = val.pop("__to", "")
# if user already defined __time_range,
# just abandon __from and __to
if "__time_range" not in val:
val["__time_range"] = "{} : {}".format(__from, __to)
json_metadata["default_filters"] = json.dumps(filters)
has_update = True
except Exception:
pass
# filter_immune_slice_fields:
# key: chart id, value: field names that escape from filters
filter_immune_slice_fields = json_metadata.get("filter_immune_slice_fields")
if filter_immune_slice_fields:
keys = [
key
for key, val in filter_immune_slice_fields.items()
if "__from" in val or "__to" in val
]
if len(keys):
for key in keys:
val = filter_immune_slice_fields[key]
if "__from" in val:
val.remove("__from")
if "__to" in val:
val.remove("__to")
# if user already defined __time_range,
# just abandon __from and __to
if "__time_range" not in val:
val.append("__time_range")
json_metadata[
"filter_immune_slice_fields"
] = filter_immune_slice_fields
has_update = True
if has_update:
dashboard.json_metadata = json.dumps(json_metadata)
session.commit()
session.close()
def downgrade():
pass
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