superset helpers 源码
superset helpers 代码
文件路径：/superset/examples/helpers.py
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# to you under the Apache License, Version 2.0 (the
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#
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"""Loads datasets, dashboards and slices in a new superset instance"""
import json
import os
from typing import Any, Dict, List, Set
from superset import app, db
from superset.connectors.sqla.models import SqlaTable
from superset.models.slice import Slice
BASE_URL = "https://github.com/apache-superset/examples-data/blob/master/"
misc_dash_slices: Set[str] = set() # slices assembled in a 'Misc Chart' dashboard
def get_table_connector_registry() -> Any:
return SqlaTable
def get_examples_folder() -> str:
return os.path.join(app.config["BASE_DIR"], "examples")
def update_slice_ids(pos: Dict[Any, Any]) -> List[Slice]:
"""Update slice ids in position_json and return the slices found."""
slice_components = [
component
for component in pos.values()
if isinstance(component, dict) and component.get("type") == "CHART"
]
slices = {}
for name in set(component["meta"]["sliceName"] for component in slice_components):
slc = db.session.query(Slice).filter_by(slice_name=name).first()
if slc:
slices[name] = slc
for component in slice_components:
slc = slices.get(component["meta"]["sliceName"])
if slc:
component["meta"]["chartId"] = slc.id
component["meta"]["uuid"] = str(slc.uuid)
return list(slices.values())
def merge_slice(slc: Slice) -> None:
o = db.session.query(Slice).filter_by(slice_name=slc.slice_name).first()
if o:
db.session.delete(o)
db.session.add(slc)
db.session.commit()
def get_slice_json(defaults: Dict[Any, Any], **kwargs: Any) -> str:
defaults_copy = defaults.copy()
defaults_copy.update(kwargs)
return json.dumps(defaults_copy, indent=4, sort_keys=True)
def get_example_url(filepath: str) -> str:
return f"{BASE_URL}{filepath}?raw=true"
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