| # 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. |
| """Migrate iframe in dashboard to markdown component |
| |
| Revision ID: 978245563a02 |
| Revises: f2672aa8350a |
| Create Date: 2020-08-12 00:24:39.617899 |
| |
| """ |
| import collections |
| import json |
| import logging |
| import uuid |
| from collections import defaultdict |
| |
| from alembic import op |
| from sqlalchemy import and_, Column, ForeignKey, Integer, String, Table, Text |
| from sqlalchemy.ext.declarative import declarative_base |
| from sqlalchemy.orm import relationship |
| |
| from superset import db |
| |
| # revision identifiers, used by Alembic. |
| revision = "978245563a02" |
| down_revision = "f2672aa8350a" |
| |
| Base = declarative_base() |
| |
| |
| class Slice(Base): |
| """Declarative class to do query in upgrade""" |
| |
| __tablename__ = "slices" |
| id = Column(Integer, primary_key=True) |
| params = Column(Text) |
| viz_type = Column(String(250)) |
| |
| |
| dashboard_slices = Table( |
| "dashboard_slices", |
| Base.metadata, |
| Column("id", Integer, primary_key=True), |
| Column("dashboard_id", Integer, ForeignKey("dashboards.id")), |
| Column("slice_id", Integer, ForeignKey("slices.id")), |
| ) |
| |
| 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")), |
| ) |
| |
| |
| class Dashboard(Base): |
| __tablename__ = "dashboards" |
| id = Column(Integer, primary_key=True) |
| position_json = Column(Text) |
| slices = relationship("Slice", secondary=dashboard_slices, backref="dashboards") |
| |
| |
| def create_new_markdown_component(chart_position, url): |
| return { |
| "type": "MARKDOWN", |
| "id": "MARKDOWN-{}".format(uuid.uuid4().hex[:8]), |
| "children": [], |
| "parents": chart_position["parents"], |
| "meta": { |
| "width": chart_position["meta"]["width"], |
| "height": chart_position["meta"]["height"], |
| "code": f'<iframe src="{url}" width="100%" height="100%"></iframe>', |
| }, |
| } |
| |
| |
| def upgrade(): |
| bind = op.get_bind() |
| session = db.Session(bind=bind) |
| |
| dash_to_migrate = defaultdict(list) |
| iframe_urls = defaultdict(list) |
| |
| try: |
| # find iframe viz_type and its url |
| iframes = session.query(Slice).filter_by(viz_type="iframe").all() |
| iframe_ids = [slc.id for slc in iframes] |
| |
| for iframe in iframes: |
| iframe_params = json.loads(iframe.params or "{}") |
| url = iframe_params.get("url") |
| iframe_urls[iframe.id] = url |
| |
| # find iframe viz_type that used in dashboard |
| dash_slc = ( |
| session.query(dashboard_slices) |
| .filter(dashboard_slices.c.slice_id.in_(iframe_ids)) |
| .all() |
| ) |
| for entry in dash_slc: |
| dash_to_migrate[entry.dashboard_id].append(entry.slice_id) |
| dashboard_ids = list(dash_to_migrate.keys()) |
| |
| # replace iframe in dashboard metadata |
| dashboards = ( |
| session.query(Dashboard).filter(Dashboard.id.in_(dashboard_ids)).all() |
| ) |
| for i, dashboard in enumerate(dashboards): |
| print( |
| f"scanning dashboard ({i + 1}/{len(dashboards)}) dashboard: {dashboard.id} >>>>" |
| ) |
| |
| # remove iframe slices from dashboard |
| dashboard.slices = [ |
| slc for slc in dashboard.slices if slc.id not in iframe_ids |
| ] |
| |
| # find iframe chart position in metadata |
| # and replace it with markdown component |
| position_dict = json.loads(dashboard.position_json or "{}") |
| keys_to_remove = [] |
| for key, chart_position in position_dict.items(): |
| if ( |
| chart_position |
| and isinstance(chart_position, dict) |
| and chart_position["type"] == "CHART" |
| and chart_position["meta"] |
| and chart_position["meta"]["chartId"] in iframe_ids |
| ): |
| iframe_id = chart_position["meta"]["chartId"] |
| # make new markdown component |
| markdown = create_new_markdown_component( |
| chart_position, iframe_urls[iframe_id] |
| ) |
| keys_to_remove.append(key) |
| position_dict[markdown["id"]] = markdown |
| |
| # add markdown to layout tree |
| parent_id = markdown["parents"][-1] |
| children = position_dict[parent_id]["children"] |
| children.remove(key) |
| children.append(markdown["id"]) |
| |
| if keys_to_remove: |
| for key_to_remove in keys_to_remove: |
| del position_dict[key_to_remove] |
| dashboard.position_json = json.dumps( |
| position_dict, indent=None, separators=(",", ":"), sort_keys=True, |
| ) |
| session.merge(dashboard) |
| |
| # remove iframe, separator and markup charts |
| slices_to_remove = ( |
| session.query(Slice) |
| .filter(Slice.viz_type.in_(["iframe", "separator", "markup"])) |
| .all() |
| ) |
| slices_ids = [slc.id for slc in slices_to_remove] |
| |
| # remove dependencies first |
| session.query(dashboard_slices).filter( |
| dashboard_slices.c.slice_id.in_(slices_ids) |
| ).delete(synchronize_session=False) |
| |
| session.query(slice_user).filter(slice_user.c.slice_id.in_(slices_ids)).delete( |
| synchronize_session=False |
| ) |
| |
| # remove slices |
| session.query(Slice).filter(Slice.id.in_(slices_ids)).delete( |
| synchronize_session=False |
| ) |
| |
| except Exception as ex: |
| logging.exception(f"dashboard {dashboard.id} has error: {ex}") |
| |
| session.commit() |
| session.close() |
| |
| |
| def downgrade(): |
| # note: this upgrade is irreversible. |
| # this migration removed all iframe, separator, and markup type slices, |
| # and Superset will not support these 3 viz_type anymore. |
| pass |