superset export 源码
superset export 代码
文件路径:/superset/datasets/commands/export.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.
# isort:skip_file
import json
import logging
from typing import Iterator, Tuple
import yaml
from werkzeug.utils import secure_filename
from superset.commands.export.models import ExportModelsCommand
from superset.connectors.sqla.models import SqlaTable
from superset.datasets.commands.exceptions import DatasetNotFoundError
from superset.datasets.dao import DatasetDAO
from superset.utils.dict_import_export import EXPORT_VERSION
logger = logging.getLogger(__name__)
JSON_KEYS = {"params", "template_params", "extra"}
class ExportDatasetsCommand(ExportModelsCommand):
dao = DatasetDAO
not_found = DatasetNotFoundError
@staticmethod
def _export(
model: SqlaTable, export_related: bool = True
) -> Iterator[Tuple[str, str]]:
database_slug = secure_filename(model.database.database_name)
dataset_slug = secure_filename(model.table_name)
file_name = f"datasets/{database_slug}/{dataset_slug}.yaml"
payload = model.export_to_dict(
recursive=True,
include_parent_ref=False,
include_defaults=True,
export_uuids=True,
)
# TODO (betodealmeida): move this logic to export_to_dict once this
# becomes the default export endpoint
for key in JSON_KEYS:
if payload.get(key):
try:
payload[key] = json.loads(payload[key])
except json.decoder.JSONDecodeError:
logger.info("Unable to decode `%s` field: %s", key, payload[key])
for key in ("metrics", "columns"):
for attributes in payload.get(key, []):
if attributes.get("extra"):
try:
attributes["extra"] = json.loads(attributes["extra"])
except json.decoder.JSONDecodeError:
logger.info(
"Unable to decode `extra` field: %s", attributes["extra"]
)
payload["version"] = EXPORT_VERSION
payload["database_uuid"] = str(model.database.uuid)
file_content = yaml.safe_dump(payload, sort_keys=False)
yield file_name, file_content
# include database as well
if export_related:
file_name = f"databases/{database_slug}.yaml"
payload = model.database.export_to_dict(
recursive=False,
include_parent_ref=False,
include_defaults=True,
export_uuids=True,
)
# TODO (betodealmeida): move this logic to export_to_dict once this
# becomes the default export endpoint
if payload.get("extra"):
try:
payload["extra"] = json.loads(payload["extra"])
except json.decoder.JSONDecodeError:
logger.info("Unable to decode `extra` field: %s", payload["extra"])
payload["version"] = EXPORT_VERSION
file_content = yaml.safe_dump(payload, sort_keys=False)
yield file_name, file_content
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