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superset2/superset/commands/chart/delete.py
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Python

# 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.
import logging
from collections import defaultdict
from functools import partial
from typing import Optional
from flask_babel import lazy_gettext as _
from superset import security_manager
from superset.commands.base import BaseCommand
from superset.commands.chart.exceptions import (
ChartDeleteFailedError,
ChartDeleteFailedReportsExistError,
ChartForbiddenError,
ChartNotFoundError,
)
from superset.daos.chart import ChartDAO
from superset.daos.report import ReportScheduleDAO
from superset.exceptions import SupersetSecurityException
from superset.models.slice import Slice
from superset.reports.models import ReportSchedule
from superset.utils.decorators import on_error, transaction
logger = logging.getLogger(__name__)
def build_blocked_by_reports_message(
charts: list[Slice],
reports: list[ReportSchedule],
single_target: bool,
) -> str:
"""Build the user-facing message naming the alerts/reports that block deletion.
Groups the blocking reports per chart, sorted by chart name (chart id as
the tie-breaker) and then report name so the message is deterministic
across database backends, and appends the remedy sentence. When the
command targets a single chart id the group prefix is dropped — in the
single-delete endpoint the surrounding toast already names the chart, and
in a one-chart bulk selection the user's own selection provides the
context. A multi-id command keeps the prefix on every group because the
bulk toast is generic, so the prefix is the only chart identification the
user gets.
"""
sentences: list[str] = []
if single_target:
names = sorted(report.name for report in reports)
sentences.append(
str(
_(
"This chart is used by alerts or reports: %(names)s.",
names=", ".join(names),
)
)
)
else:
report_names_by_chart_id: dict[int, list[str]] = defaultdict(list)
for report in reports:
report_names_by_chart_id[report.chart_id].append(report.name)
charts_by_id = {chart.id: chart for chart in charts}
for chart_id, names in sorted(
report_names_by_chart_id.items(),
key=lambda item: (charts_by_id[item[0]].slice_name or "", item[0]),
):
sentences.append(
str(
_(
'Chart "%(chart)s" is used by alerts or reports: %(names)s.',
chart=charts_by_id[chart_id].slice_name or str(chart_id),
names=", ".join(sorted(names)),
)
)
)
sentences.append(str(_("Detach or delete them first.")))
return " ".join(sentences)
class DeleteChartCommand(BaseCommand):
def __init__(self, model_ids: list[int]):
self._model_ids = model_ids
self._models: Optional[list[Slice]] = None
@transaction(on_error=partial(on_error, reraise=ChartDeleteFailedError))
def run(self) -> None:
self.validate()
assert self._models
ChartDAO.delete(self._models)
def validate(self) -> None:
# Validate/populate model exists
self._models = ChartDAO.find_by_ids(self._model_ids)
if not self._models or len(self._models) != len(self._model_ids):
raise ChartNotFoundError()
# Check there are no associated ReportSchedules
if reports := ReportScheduleDAO.find_by_chart_ids(self._model_ids):
raise ChartDeleteFailedReportsExistError(
build_blocked_by_reports_message(
self._models,
reports,
single_target=len(self._model_ids) == 1,
)
)
# Check editorship
for model in self._models:
try:
security_manager.raise_for_editorship(model)
except SupersetSecurityException as ex:
raise ChartForbiddenError() from ex