superset 2016-06-27_08-43_27ae655e4247_make_creator_owners 源码

superset 2016-06-27_08-43_27ae655e4247_make_creator_owners 代码

文件路径：/superset/migrations/versions/2016-06-27_08-43_27ae655e4247_make_creator_owners.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.
"""Make creator owners

Revision ID: 27ae655e4247
Revises: d8bc074f7aad
Create Date: 2016-06-27 08:43:52.592242

"""

# revision identifiers, used by Alembic.
revision = "27ae655e4247"
down_revision = "d8bc074f7aad"

from alembic import op
from flask import g
from flask_appbuilder import Model
from sqlalchemy import Column, ForeignKey, Integer, Table
from sqlalchemy.ext.declarative import declarative_base, declared_attr
from sqlalchemy.orm import relationship

from superset import db
from superset.utils.core import get_user_id

Base = declarative_base()


class User(Base):
    """Declarative class to do query in upgrade"""

    __tablename__ = "ab_user"
    id = Column(Integer, primary_key=True)


slice_user = Table(
    "slice_user",
    Base.metadata,
    Column("id", Integer, primary_key=True),
    Column("user_id", Integer, ForeignKey("ab_user.id")),
    Column("slice_id", Integer, ForeignKey("slices.id")),
)

dashboard_user = Table(
    "dashboard_user",
    Base.metadata,
    Column("id", Integer, primary_key=True),
    Column("user_id", Integer, ForeignKey("ab_user.id")),
    Column("dashboard_id", Integer, ForeignKey("dashboards.id")),
)


class AuditMixin:
    @declared_attr
    def created_by_fk(cls):
        return Column(
            Integer, ForeignKey("ab_user.id"), default=get_user_id, nullable=False
        )

    @declared_attr
    def created_by(cls):
        return relationship(
            "User",
            primaryjoin="%s.created_by_fk == User.id" % cls.__name__,
            enable_typechecks=False,
        )


class Slice(Base, AuditMixin):
    """Declarative class to do query in upgrade"""

    __tablename__ = "slices"
    id = Column(Integer, primary_key=True)
    owners = relationship("User", secondary=slice_user)


class Dashboard(Base, AuditMixin):
    """Declarative class to do query in upgrade"""

    __tablename__ = "dashboards"
    id = Column(Integer, primary_key=True)
    owners = relationship("User", secondary=dashboard_user)


def upgrade():
    bind = op.get_bind()
    session = db.Session(bind=bind)

    objects = session.query(Slice).all()
    objects += session.query(Dashboard).all()
    for obj in objects:
        if obj.created_by and obj.created_by not in obj.owners:
            obj.owners.append(obj.created_by)
        session.commit()
    session.close()


def downgrade():
    pass

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