superset models 源码
superset models 代码
文件路径：/superset/commands/export/models.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.
from datetime import datetime, timezone
from typing import Iterator, List, Tuple, Type
import yaml
from flask_appbuilder import Model
from superset.commands.base import BaseCommand
from superset.commands.exceptions import CommandException
from superset.dao.base import BaseDAO
from superset.utils.dict_import_export import EXPORT_VERSION
METADATA_FILE_NAME = "metadata.yaml"
class ExportModelsCommand(BaseCommand):
dao: Type[BaseDAO] = BaseDAO
not_found: Type[CommandException] = CommandException
def __init__(self, model_ids: List[int], export_related: bool = True):
self.model_ids = model_ids
self.export_related = export_related
# this will be set when calling validate()
self._models: List[Model] = []
@staticmethod
def _export(model: Model, export_related: bool = True) -> Iterator[Tuple[str, str]]:
raise NotImplementedError("Subclasses MUST implement _export")
def run(self) -> Iterator[Tuple[str, str]]:
self.validate()
metadata = {
"version": EXPORT_VERSION,
"type": self.dao.model_cls.__name__, # type: ignore
"timestamp": datetime.now(tz=timezone.utc).isoformat(),
}
yield METADATA_FILE_NAME, yaml.safe_dump(metadata, sort_keys=False)
seen = {METADATA_FILE_NAME}
for model in self._models:
for file_name, file_content in self._export(model, self.export_related):
if file_name not in seen:
yield file_name, file_content
seen.add(file_name)
def validate(self) -> None:
self._models = self.dao.find_by_ids(self.model_ids)
if len(self._models) != len(self.model_ids):
raise self.not_found()
相关信息
相关文章
0
赞
热门推荐
-
2、 - 优质文章
-
3、 gate.io
-
8、 golang
-
9、 openharmony
-
10、 Vue中input框自动聚焦