superset 2017-02-08_14-16_a99f2f7c195a_rewriting_url_from_shortner_with_new_ 源码
superset 2017-02-08_14-16_a99f2f7c195a_rewriting_url_from_shortner_withnew 代码
文件路径：/superset/migrations/versions/2017-02-08_14-16_a99f2f7c195a_rewriting_url_from_shortner_withnew.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.
"""rewriting url from shortner with new format
Revision ID: a99f2f7c195a
Revises: 53fc3de270ae
Create Date: 2017-02-08 14:16:34.948793
"""
# revision identifiers, used by Alembic.
revision = "a99f2f7c195a"
down_revision = "db0c65b146bd"
import json
from urllib import parse
import sqlalchemy as sa
from alembic import op
from sqlalchemy.ext.declarative import declarative_base
from superset import db
Base = declarative_base()
def parse_querystring(qs):
d = {}
for k, v in parse.parse_qsl(qs):
if not k in d:
d[k] = v
else:
if isinstance(d[k], list):
d[k].append(v)
else:
d[k] = [d[k], v]
return d
class Url(Base):
"""Used for the short url feature"""
__tablename__ = "url"
id = sa.Column(sa.Integer, primary_key=True)
url = sa.Column(sa.Text)
def upgrade():
bind = op.get_bind()
session = db.Session(bind=bind)
urls = session.query(Url).all()
urls_len = len(urls)
for i, url in enumerate(urls):
if (
"?form_data" not in url.url
and "?" in url.url
and "dbid" not in url.url
and url.url.startswith("//superset/explore")
):
d = parse_querystring(url.url.split("?")[1])
split = url.url.split("/")
d["datasource"] = split[5] + "__" + split[4]
newurl = (
"/".join(split[:-1]) + "/?form_data=" + parse.quote_plus(json.dumps(d))
)
url.url = newurl
session.merge(url)
session.commit()
print("Updating url ({}/{})".format(i, urls_len))
session.close()
def downgrade():
pass
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