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def memoized_func(key=view_cache_key, attribute_in_key=None): """Use this decorator to cache functions that have predefined first arg. enable_cache is treated as True by default, except enable_cache = False is passed to the decorated function. force means whether to force refresh the cache and is trea...
def name(self): """Name property""" ts = datetime.now().isoformat() ts = ts.replace('-', '').replace(':', '').split('.')[0] tab = (self.tab_name.replace(' ', '_').lower() if self.tab_name else 'notab') tab = re.sub(r'\W+', '', tab) return f'sqllab_{tab}_{ts...
def check_datasource_perms(self, datasource_type=None, datasource_id=None): """ Check if user can access a cached response from explore_json. This function takes `self` since it must have the same signature as the the decorated method. """ form_data = get_form_data()[0] datasource_id, data...
def check_slice_perms(self, slice_id): """ Check if user can access a cached response from slice_json. This function takes `self` since it must have the same signature as the the decorated method. """ form_data, slc = get_form_data(slice_id, use_slice_data=True) datasource_type = slc.datas...
def apply_caching(response): """Applies the configuration's http headers to all responses""" for k, v in config.get('HTTP_HEADERS').items(): response.headers[k] = v return response
def override_role_permissions(self): """Updates the role with the give datasource permissions. Permissions not in the request will be revoked. This endpoint should be available to admins only. Expects JSON in the format: { 'role_name': '{role_name}', 'data...
def explore_json(self, datasource_type=None, datasource_id=None): """Serves all request that GET or POST form_data This endpoint evolved to be the entry point of many different requests that GETs or POSTs a form_data. `self.generate_json` receives this input and returns different ...
def import_dashboards(self): """Overrides the dashboards using json instances from the file.""" f = request.files.get('file') if request.method == 'POST' and f: dashboard_import_export.import_dashboards(db.session, f.stream) return redirect('/dashboard/list/') ret...
def explorev2(self, datasource_type, datasource_id): """Deprecated endpoint, here for backward compatibility of urls""" return redirect(url_for( 'Superset.explore', datasource_type=datasource_type, datasource_id=datasource_id, **request.args))
def filter(self, datasource_type, datasource_id, column): """ Endpoint to retrieve values for specified column. :param datasource_type: Type of datasource e.g. table :param datasource_id: Datasource id :param column: Column name to retrieve values for :return: ""...
def save_or_overwrite_slice( self, args, slc, slice_add_perm, slice_overwrite_perm, slice_download_perm, datasource_id, datasource_type, datasource_name): """Save or overwrite a slice""" slice_name = args.get('slice_name') action = args.get('action') form_data = g...
def checkbox(self, model_view, id_, attr, value): """endpoint for checking/unchecking any boolean in a sqla model""" modelview_to_model = { '{}ColumnInlineView'.format(name.capitalize()): source.column_class for name, source in ConnectorRegistry.sources.items() } ...
def tables(self, db_id, schema, substr, force_refresh='false'): """Endpoint to fetch the list of tables for given database""" db_id = int(db_id) force_refresh = force_refresh.lower() == 'true' schema = utils.js_string_to_python(schema) substr = utils.js_string_to_python(substr) ...
def copy_dash(self, dashboard_id): """Copy dashboard""" session = db.session() data = json.loads(request.form.get('data')) dash = models.Dashboard() original_dash = ( session .query(models.Dashboard) .filter_by(id=dashboard_id).first()) ...
def save_dash(self, dashboard_id): """Save a dashboard's metadata""" session = db.session() dash = (session .query(models.Dashboard) .filter_by(id=dashboard_id).first()) check_ownership(dash, raise_if_false=True) data = json.loads(request.form.get(...
def add_slices(self, dashboard_id): """Add and save slices to a dashboard""" data = json.loads(request.form.get('data')) session = db.session() Slice = models.Slice # noqa dash = ( session.query(models.Dashboard).filter_by(id=dashboard_id).first()) check_owne...
def recent_activity(self, user_id): """Recent activity (actions) for a given user""" M = models # noqa if request.args.get('limit'): limit = int(request.args.get('limit')) else: limit = 1000 qry = ( db.session.query(M.Log, M.Dashboard, M.Sli...
def fave_dashboards_by_username(self, username): """This lets us use a user's username to pull favourite dashboards""" user = security_manager.find_user(username=username) return self.fave_dashboards(user.get_id())
def user_slices(self, user_id=None): """List of slices a user created, or faved""" if not user_id: user_id = g.user.id Slice = models.Slice # noqa FavStar = models.FavStar # noqa qry = ( db.session.query(Slice, FavStar.dttm).j...
def created_slices(self, user_id=None): """List of slices created by this user""" if not user_id: user_id = g.user.id Slice = models.Slice # noqa qry = ( db.session.query(Slice) .filter( sqla.or_( Slice.created_by_f...
def fave_slices(self, user_id=None): """Favorite slices for a user""" if not user_id: user_id = g.user.id qry = ( db.session.query( models.Slice, models.FavStar.dttm, ) .join( models.FavStar, ...
def warm_up_cache(self): """Warms up the cache for the slice or table. Note for slices a force refresh occurs. """ slices = None session = db.session() slice_id = request.args.get('slice_id') table_name = request.args.get('table_name') db_name = request.a...
def favstar(self, class_name, obj_id, action): """Toggle favorite stars on Slices and Dashboard""" session = db.session() FavStar = models.FavStar # noqa count = 0 favs = session.query(FavStar).filter_by( class_name=class_name, obj_id=obj_id, user_id=g.us...
def dashboard(self, dashboard_id): """Server side rendering for a dashboard""" session = db.session() qry = session.query(models.Dashboard) if dashboard_id.isdigit(): qry = qry.filter_by(id=int(dashboard_id)) else: qry = qry.filter_by(slug=dashboard_id) ...
def sync_druid_source(self): """Syncs the druid datasource in main db with the provided config. The endpoint takes 3 arguments: user - user name to perform the operation as cluster - name of the druid cluster config - configuration stored in json that contains: ...
def cache_key_exist(self, key): """Returns if a key from cache exist""" key_exist = True if cache.get(key) else False status = 200 if key_exist else 404 return json_success(json.dumps({'key_exist': key_exist}), status=status)
def results(self, key): """Serves a key off of the results backend""" if not results_backend: return json_error_response("Results backend isn't configured") read_from_results_backend_start = now_as_float() blob = results_backend.get(key) stats_logger.timing( ...
def sql_json(self): """Runs arbitrary sql and returns and json""" async_ = request.form.get('runAsync') == 'true' sql = request.form.get('sql') database_id = request.form.get('database_id') schema = request.form.get('schema') or None template_params = json.loads( ...
def csv(self, client_id): """Download the query results as csv.""" logging.info('Exporting CSV file [{}]'.format(client_id)) query = ( db.session.query(Query) .filter_by(client_id=client_id) .one() ) rejected_tables = security_manager.rejected...
def queries(self, last_updated_ms): """Get the updated queries.""" stats_logger.incr('queries') if not g.user.get_id(): return json_error_response( 'Please login to access the queries.', status=403) # Unix time, milliseconds. last_updated_ms_int = int...
def search_queries(self) -> Response: """ Search for previously run sqllab queries. Used for Sqllab Query Search page /superset/sqllab#search. Custom permission can_only_search_queries_owned restricts queries to only queries run by current user. :returns: Response with ...
def welcome(self): """Personalized welcome page""" if not g.user or not g.user.get_id(): return redirect(appbuilder.get_url_for_login) welcome_dashboard_id = ( db.session .query(UserAttribute.welcome_dashboard_id) .filter_by(user_id=g.user.get_id(...
def profile(self, username): """User profile page""" if not username and g.user: username = g.user.username payload = { 'user': bootstrap_user_data(username, include_perms=True), 'common': self.common_bootsrap_payload(), } return self.render_...
def sqllab(self): """SQL Editor""" d = { 'defaultDbId': config.get('SQLLAB_DEFAULT_DBID'), 'common': self.common_bootsrap_payload(), } return self.render_template( 'superset/basic.html', entry='sqllab', bootstrap_data=json.dumps...
def slice_query(self, slice_id): """ This method exposes an API endpoint to get the database query string for this slice """ viz_obj = get_viz(slice_id) security_manager.assert_datasource_permission(viz_obj.datasource) return self.get_query_string_response(viz_obj...
def schemas_access_for_csv_upload(self): """ This method exposes an API endpoint to get the schema access control settings for csv upload in this database """ if not request.args.get('db_id'): return json_error_response( 'No database is allowed for you...
def stats_timing(stats_key, stats_logger): """Provide a transactional scope around a series of operations.""" start_ts = now_as_float() try: yield start_ts except Exception as e: raise e finally: stats_logger.timing(stats_key, now_as_float() - start_ts)
def etag_cache(max_age, check_perms=bool): """ A decorator for caching views and handling etag conditional requests. The decorator adds headers to GET requests that help with caching: Last- Modified, Expires and ETag. It also handles conditional requests, when the client send an If-Matches header. ...
def apply_limit_to_sql(cls, sql, limit, database): """Alters the SQL statement to apply a LIMIT clause""" if cls.limit_method == LimitMethod.WRAP_SQL: sql = sql.strip('\t\n ;') qry = ( select('*') .select_from( TextAsFrom(text(s...
def modify_url_for_impersonation(cls, url, impersonate_user, username): """ Modify the SQL Alchemy URL object with the user to impersonate if applicable. :param url: SQLAlchemy URL object :param impersonate_user: Bool indicating if impersonation is enabled :param username: Effect...
def make_label_compatible(cls, label): """ Conditionally mutate and/or quote a sql column/expression label. If force_column_alias_quotes is set to True, return the label as a sqlalchemy.sql.elements.quoted_name object to ensure that the select query and query results have same ca...
def truncate_label(cls, label): """ In the case that a label exceeds the max length supported by the engine, this method is used to construct a deterministic and unique label based on an md5 hash. """ label = hashlib.md5(label.encode('utf-8')).hexdigest() # trunca...
def get_table_names(cls, inspector, schema): """Need to consider foreign tables for PostgreSQL""" tables = inspector.get_table_names(schema) tables.extend(inspector.get_foreign_table_names(schema)) return sorted(tables)
def get_timestamp_column(expression, column_name): """Postgres is unable to identify mixed case column names unless they are quoted.""" if expression: return expression elif column_name.lower() != column_name: return f'"{column_name}"' return column_name
def extract_error_message(cls, e): """Extract error message for queries""" message = str(e) try: if isinstance(e.args, tuple) and len(e.args) > 1: message = e.args[1] except Exception: pass return message
def fetch_result_sets(cls, db, datasource_type): """Returns a list of tables [schema1.table1, schema2.table2, ...] Datasource_type can be 'table' or 'view'. Empty schema corresponds to the list of full names of the all tables or views: <schema>.<result_set_name>. """ res...
def handle_cursor(cls, cursor, query, session): """Updates progress information""" logging.info('Polling the cursor for progress') polled = cursor.poll() # poll returns dict -- JSON status information or ``None`` # if the query is done # https://github.com/dropbox/PyHive/...
def _partition_query( cls, table_name, limit=0, order_by=None, filters=None): """Returns a partition query :param table_name: the name of the table to get partitions from :type table_name: str :param limit: the number of partitions to be returned :type limit: int ...
def create_table_from_csv(form, table): """Uploads a csv file and creates a superset datasource in Hive.""" def convert_to_hive_type(col_type): """maps tableschema's types to hive types""" tableschema_to_hive_types = { 'boolean': 'BOOLEAN', 'intege...
def handle_cursor(cls, cursor, query, session): """Updates progress information""" from pyhive import hive # pylint: disable=no-name-in-module unfinished_states = ( hive.ttypes.TOperationState.INITIALIZED_STATE, hive.ttypes.TOperationState.RUNNING_STATE, ) ...
def get_configuration_for_impersonation(cls, uri, impersonate_user, username): """ Return a configuration dictionary that can be merged with other configs that can set the correct properties for impersonating users :param uri: URI string :param impersonate_user: Bool indicating i...
def mutate_label(label): """ BigQuery field_name should start with a letter or underscore and contain only alphanumeric characters. Labels that start with a number are prefixed with an underscore. Any unsupported characters are replaced with underscores and an md5 hash is added t...
def _get_fields(cls, cols): """ BigQuery dialect requires us to not use backtick in the fieldname which are nested. Using literal_column handles that issue. https://docs.sqlalchemy.org/en/latest/core/tutorial.html#using-more-specific-text-with-table-literal-column-and-column ...
def load_multiformat_time_series(): """Loading time series data from a zip file in the repo""" data = get_example_data('multiformat_time_series.json.gz') pdf = pd.read_json(data) pdf.ds = pd.to_datetime(pdf.ds, unit='s') pdf.ds2 = pd.to_datetime(pdf.ds2, unit='s') pdf.to_sql( 'multiform...
def import_dashboards(session, data_stream, import_time=None): """Imports dashboards from a stream to databases""" current_tt = int(time.time()) import_time = current_tt if import_time is None else import_time data = json.loads(data_stream.read(), object_hook=decode_dashboards) # TODO: import DRUID ...
def export_dashboards(session): """Returns all dashboards metadata as a json dump""" logging.info('Starting export') dashboards = session.query(Dashboard) dashboard_ids = [] for dashboard in dashboards: dashboard_ids.append(dashboard.id) data = Dashboard.export_dashboards(dashboard_ids) ...
def cache_key(self, **extra): """ The cache key is made out of the key/values in `query_obj`, plus any other key/values in `extra` We remove datetime bounds that are hard values, and replace them with the use-provided inputs to bounds, which may be time-relative (as in "5...
def handle_query_error(msg, query, session, payload=None): """Local method handling error while processing the SQL""" payload = payload or {} troubleshooting_link = config['TROUBLESHOOTING_LINK'] query.error_message = msg query.status = QueryStatus.FAILED query.tmp_table_name = None session....
def get_query(query_id, session, retry_count=5): """attemps to get the query and retry if it cannot""" query = None attempt = 0 while not query and attempt < retry_count: try: query = session.query(Query).filter_by(id=query_id).one() except Exception: attempt += 1...
def session_scope(nullpool): """Provide a transactional scope around a series of operations.""" if nullpool: engine = sqlalchemy.create_engine( app.config.get('SQLALCHEMY_DATABASE_URI'), poolclass=NullPool) session_class = sessionmaker() session_class.configure(bind=engine) ...
def get_sql_results( ctask, query_id, rendered_query, return_results=True, store_results=False, user_name=None, start_time=None): """Executes the sql query returns the results.""" with session_scope(not ctask.request.called_directly) as session: try: return execute_sql_statement...
def execute_sql_statement(sql_statement, query, user_name, session, cursor): """Executes a single SQL statement""" database = query.database db_engine_spec = database.db_engine_spec parsed_query = ParsedQuery(sql_statement) sql = parsed_query.stripped() SQL_MAX_ROWS = app.config.get('SQL_MAX_ROW...
def execute_sql_statements( ctask, query_id, rendered_query, return_results=True, store_results=False, user_name=None, session=None, start_time=None, ): """Executes the sql query returns the results.""" if store_results and start_time: # only asynchronous queries stats_logger.timing( ...
def flasher(msg, severity=None): """Flask's flash if available, logging call if not""" try: flash(msg, severity) except RuntimeError: if severity == 'danger': logging.error(msg) else: logging.info(msg)
def string_to_num(s: str): """Converts a string to an int/float Returns ``None`` if it can't be converted >>> string_to_num('5') 5 >>> string_to_num('5.2') 5.2 >>> string_to_num(10) 10 >>> string_to_num(10.1) 10.1 >>> string_to_num('this is not a string') is None True ...
def list_minus(l: List, minus: List) -> List: """Returns l without what is in minus >>> list_minus([1, 2, 3], [2]) [1, 3] """ return [o for o in l if o not in minus]
def parse_human_datetime(s): """ Returns ``datetime.datetime`` from human readable strings >>> from datetime import date, timedelta >>> from dateutil.relativedelta import relativedelta >>> parse_human_datetime('2015-04-03') datetime.datetime(2015, 4, 3, 0, 0) >>> parse_human_datetime('2/3/1...
def decode_dashboards(o): """ Function to be passed into json.loads obj_hook parameter Recreates the dashboard object from a json representation. """ import superset.models.core as models from superset.connectors.sqla.models import ( SqlaTable, SqlMetric, TableColumn, ) if '__Da...
def parse_human_timedelta(s: str): """ Returns ``datetime.datetime`` from natural language time deltas >>> parse_human_datetime('now') <= datetime.now() True """ cal = parsedatetime.Calendar() dttm = dttm_from_timtuple(datetime.now().timetuple()) d = cal.parse(s or '', dttm)[0] d = ...
def datetime_f(dttm): """Formats datetime to take less room when it is recent""" if dttm: dttm = dttm.isoformat() now_iso = datetime.now().isoformat() if now_iso[:10] == dttm[:10]: dttm = dttm[11:] elif now_iso[:4] == dttm[:4]: dttm = dttm[5:] return '...
def json_iso_dttm_ser(obj, pessimistic: Optional[bool] = False): """ json serializer that deals with dates >>> dttm = datetime(1970, 1, 1) >>> json.dumps({'dttm': dttm}, default=json_iso_dttm_ser) '{"dttm": "1970-01-01T00:00:00"}' """ val = base_json_conv(obj) if val is not None: ...
def json_int_dttm_ser(obj): """json serializer that deals with dates""" val = base_json_conv(obj) if val is not None: return val if isinstance(obj, (datetime, pd.Timestamp)): obj = datetime_to_epoch(obj) elif isinstance(obj, date): obj = (obj - EPOCH.date()).total_seconds() *...
def error_msg_from_exception(e): """Translate exception into error message Database have different ways to handle exception. This function attempts to make sense of the exception object and construct a human readable sentence. TODO(bkyryliuk): parse the Presto error message from the connection ...
def generic_find_constraint_name(table, columns, referenced, db): """Utility to find a constraint name in alembic migrations""" t = sa.Table(table, db.metadata, autoload=True, autoload_with=db.engine) for fk in t.foreign_key_constraints: if fk.referred_table.name == referenced and set(fk.column_key...
def generic_find_fk_constraint_name(table, columns, referenced, insp): """Utility to find a foreign-key constraint name in alembic migrations""" for fk in insp.get_foreign_keys(table): if fk['referred_table'] == referenced and set(fk['referred_columns']) == columns: return fk['name']
def generic_find_fk_constraint_names(table, columns, referenced, insp): """Utility to find foreign-key constraint names in alembic migrations""" names = set() for fk in insp.get_foreign_keys(table): if fk['referred_table'] == referenced and set(fk['referred_columns']) == columns: names....
def generic_find_uq_constraint_name(table, columns, insp): """Utility to find a unique constraint name in alembic migrations""" for uq in insp.get_unique_constraints(table): if columns == set(uq['column_names']): return uq['name']
def table_has_constraint(table, name, db): """Utility to find a constraint name in alembic migrations""" t = sa.Table(table, db.metadata, autoload=True, autoload_with=db.engine) for c in t.constraints: if c.name == name: return True return False
def send_email_smtp(to, subject, html_content, config, files=None, data=None, images=None, dryrun=False, cc=None, bcc=None, mime_subtype='mixed'): """ Send an email with html content, eg: send_email_smtp( 'test@example.com', 'foo', '<b>Foo</b> bar',['/dev/null...
def setup_cache(app: Flask, cache_config) -> Optional[Cache]: """Setup the flask-cache on a flask app""" if cache_config and cache_config.get('CACHE_TYPE') != 'null': return Cache(app, config=cache_config) return None
def zlib_compress(data): """ Compress things in a py2/3 safe fashion >>> json_str = '{"test": 1}' >>> blob = zlib_compress(json_str) """ if PY3K: if isinstance(data, str): return zlib.compress(bytes(data, 'utf-8')) return zlib.compress(data) return zlib.compress(d...
def zlib_decompress_to_string(blob): """ Decompress things to a string in a py2/3 safe fashion >>> json_str = '{"test": 1}' >>> blob = zlib_compress(json_str) >>> got_str = zlib_decompress_to_string(blob) >>> got_str == json_str True """ if PY3K: if isinstance(blob, bytes): ...
def user_label(user: User) -> Optional[str]: """Given a user ORM FAB object, returns a label""" if user: if user.first_name and user.last_name: return user.first_name + ' ' + user.last_name else: return user.username return None
def get_since_until(time_range: Optional[str] = None, since: Optional[str] = None, until: Optional[str] = None, time_shift: Optional[str] = None, relative_end: Optional[str] = None) -> Tuple[datetime, datetime]: """Return `since` and `u...
def add_ago_to_since(since: str) -> str: """ Backwards compatibility hack. Without this slices with since: 7 days will be treated as 7 days in the future. :param str since: :returns: Since with ago added if necessary :rtype: str """ since_words = since.split(' ') grains = ['days', '...
def split_adhoc_filters_into_base_filters(fd): """ Mutates form data to restructure the adhoc filters in the form of the four base filters, `where`, `having`, `filters`, and `having_filters` which represent free form where sql, free form having sql, structured where clauses and structured having cla...
def load_energy(): """Loads an energy related dataset to use with sankey and graphs""" tbl_name = 'energy_usage' data = get_example_data('energy.json.gz') pdf = pd.read_json(data) pdf.to_sql( tbl_name, db.engine, if_exists='replace', chunksize=500, dtype={ ...
def load_random_time_series_data(): """Loading random time series data from a zip file in the repo""" data = get_example_data('random_time_series.json.gz') pdf = pd.read_json(data) pdf.ds = pd.to_datetime(pdf.ds, unit='s') pdf.to_sql( 'random_time_series', db.engine, if_exist...
def runserver(debug, console_log, use_reloader, address, port, timeout, workers, socket): """Starts a Superset web server.""" debug = debug or config.get('DEBUG') or console_log if debug: print(Fore.BLUE + '-=' * 20) print( Fore.YELLOW + 'Starting Superset server in ' + ...
def version(verbose): """Prints the current version number""" print(Fore.BLUE + '-=' * 15) print(Fore.YELLOW + 'Superset ' + Fore.CYAN + '{version}'.format( version=config.get('VERSION_STRING'))) print(Fore.BLUE + '-=' * 15) if verbose: print('[DB] : ' + '{}'.format(db.engine)) p...
def refresh_druid(datasource, merge): """Refresh druid datasources""" session = db.session() from superset.connectors.druid.models import DruidCluster for cluster in session.query(DruidCluster).all(): try: cluster.refresh_datasources(datasource_name=datasource, ...
def import_dashboards(path, recursive): """Import dashboards from JSON""" p = Path(path) files = [] if p.is_file(): files.append(p) elif p.exists() and not recursive: files.extend(p.glob('*.json')) elif p.exists() and recursive: files.extend(p.rglob('*.json')) for f i...
def export_dashboards(print_stdout, dashboard_file): """Export dashboards to JSON""" data = dashboard_import_export.export_dashboards(db.session) if print_stdout or not dashboard_file: print(data) if dashboard_file: logging.info('Exporting dashboards to %s', dashboard_file) with ...
def import_datasources(path, sync, recursive): """Import datasources from YAML""" sync_array = sync.split(',') p = Path(path) files = [] if p.is_file(): files.append(p) elif p.exists() and not recursive: files.extend(p.glob('*.yaml')) files.extend(p.glob('*.yml')) eli...
def export_datasources(print_stdout, datasource_file, back_references, include_defaults): """Export datasources to YAML""" data = dict_import_export.export_to_dict( session=db.session, recursive=True, back_references=back_references, include_defaults=includ...
def export_datasource_schema(back_references): """Export datasource YAML schema to stdout""" data = dict_import_export.export_schema_to_dict( back_references=back_references) yaml.safe_dump(data, stdout, default_flow_style=False)
def update_datasources_cache(): """Refresh sqllab datasources cache""" from superset.models.core import Database for database in db.session.query(Database).all(): if database.allow_multi_schema_metadata_fetch: print('Fetching {} datasources ...'.format(database.name)) try: ...
def worker(workers): """Starts a Superset worker for async SQL query execution.""" logging.info( "The 'superset worker' command is deprecated. Please use the 'celery " "worker' command instead.") if workers: celery_app.conf.update(CELERYD_CONCURRENCY=workers) elif config.get('SUP...
def flower(port, address): """Runs a Celery Flower web server Celery Flower is a UI to monitor the Celery operation on a given broker""" BROKER_URL = celery_app.conf.BROKER_URL cmd = ( 'celery flower ' f'--broker={BROKER_URL} ' f'--port={port} ' f'--address={address}...
def load_flights(): """Loading random time series data from a zip file in the repo""" tbl_name = 'flights' data = get_example_data('flight_data.csv.gz', make_bytes=True) pdf = pd.read_csv(data, encoding='latin-1') # Loading airports info to join and get lat/long airports_bytes = get_example_dat...