superset 2016-06-07_12-33_d8bc074f7aad_add_new_field_is_restricted_to_ 源码
superset 2016-06-07_12-33_d8bc074f7aad_add_new_field_is_restrictedto 代码
文件路径：/superset/migrations/versions/2016-06-07_12-33_d8bc074f7aad_add_new_field_is_restrictedto.py
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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
#
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# KIND, either express or implied. See the License for the
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"""Add new field 'is_restricted' to SqlMetric and DruidMetric
Revision ID: d8bc074f7aad
Revises: 1226819ee0e3
Create Date: 2016-06-07 12:33:25.756640
"""
# revision identifiers, used by Alembic.
revision = "d8bc074f7aad"
down_revision = "1226819ee0e3"
import sqlalchemy as sa
from alembic import op
from sqlalchemy import Boolean, Column, Integer
from sqlalchemy.ext.declarative import declarative_base
from superset import db
Base = declarative_base()
class DruidMetric(Base):
"""Declarative class used to do query in upgrade"""
__tablename__ = "metrics"
id = Column(Integer, primary_key=True)
is_restricted = Column(Boolean, default=False, nullable=True)
class SqlMetric(Base):
"""Declarative class used to do query in upgrade"""
__tablename__ = "sql_metrics"
id = Column(Integer, primary_key=True)
is_restricted = Column(Boolean, default=False, nullable=True)
def upgrade():
op.add_column("metrics", sa.Column("is_restricted", sa.Boolean(), nullable=True))
op.add_column(
"sql_metrics", sa.Column("is_restricted", sa.Boolean(), nullable=True)
)
bind = op.get_bind()
session = db.Session(bind=bind)
# don't use models.DruidMetric
# because it assumes the context is consistent with the application
for obj in session.query(DruidMetric).all():
obj.is_restricted = False
for obj in session.query(SqlMetric).all():
obj.is_restricted = False
session.commit()
session.close()
def downgrade():
with op.batch_alter_table("sql_metrics", schema=None) as batch_op:
batch_op.drop_column("is_restricted")
with op.batch_alter_table("metrics", schema=None) as batch_op:
batch_op.drop_column("is_restricted")
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