683 lines
25 KiB
Python
683 lines
25 KiB
Python
"""Support for GTFS (Google/General Transport Format Schema)."""
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import datetime
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import logging
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import os
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import threading
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from typing import Any, Callable, Optional
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import pygtfs
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from sqlalchemy.sql import text
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import voluptuous as vol
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from homeassistant.components.sensor import PLATFORM_SCHEMA
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from homeassistant.const import (
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ATTR_ATTRIBUTION,
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CONF_NAME,
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CONF_OFFSET,
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DEVICE_CLASS_TIMESTAMP,
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STATE_UNKNOWN,
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)
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import homeassistant.helpers.config_validation as cv
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from homeassistant.helpers.entity import Entity
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from homeassistant.helpers.typing import ConfigType, HomeAssistantType
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from homeassistant.util import slugify
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import homeassistant.util.dt as dt_util
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_LOGGER = logging.getLogger(__name__)
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ATTR_ARRIVAL = "arrival"
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ATTR_BICYCLE = "trip_bikes_allowed_state"
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ATTR_DAY = "day"
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ATTR_FIRST = "first"
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ATTR_DROP_OFF_DESTINATION = "destination_stop_drop_off_type_state"
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ATTR_DROP_OFF_ORIGIN = "origin_stop_drop_off_type_state"
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ATTR_INFO = "info"
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ATTR_OFFSET = CONF_OFFSET
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ATTR_LAST = "last"
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ATTR_LOCATION_DESTINATION = "destination_station_location_type_name"
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ATTR_LOCATION_ORIGIN = "origin_station_location_type_name"
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ATTR_PICKUP_DESTINATION = "destination_stop_pickup_type_state"
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ATTR_PICKUP_ORIGIN = "origin_stop_pickup_type_state"
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ATTR_ROUTE_TYPE = "route_type_name"
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ATTR_TIMEPOINT_DESTINATION = "destination_stop_timepoint_exact"
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ATTR_TIMEPOINT_ORIGIN = "origin_stop_timepoint_exact"
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ATTR_WHEELCHAIR = "trip_wheelchair_access_available"
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ATTR_WHEELCHAIR_DESTINATION = "destination_station_wheelchair_boarding_available"
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ATTR_WHEELCHAIR_ORIGIN = "origin_station_wheelchair_boarding_available"
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CONF_DATA = "data"
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CONF_DESTINATION = "destination"
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CONF_ORIGIN = "origin"
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CONF_TOMORROW = "include_tomorrow"
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DEFAULT_NAME = "GTFS Sensor"
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DEFAULT_PATH = "gtfs"
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BICYCLE_ALLOWED_DEFAULT = STATE_UNKNOWN
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BICYCLE_ALLOWED_OPTIONS = {1: True, 2: False}
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DROP_OFF_TYPE_DEFAULT = STATE_UNKNOWN
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DROP_OFF_TYPE_OPTIONS = {
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0: "Regular",
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1: "Not Available",
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2: "Call Agency",
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3: "Contact Driver",
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}
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ICON = "mdi:train"
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ICONS = {
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0: "mdi:tram",
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1: "mdi:subway",
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2: "mdi:train",
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3: "mdi:bus",
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4: "mdi:ferry",
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5: "mdi:train-variant",
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6: "mdi:gondola",
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7: "mdi:stairs",
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}
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LOCATION_TYPE_DEFAULT = "Stop"
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LOCATION_TYPE_OPTIONS = {
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0: "Station",
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1: "Stop",
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2: "Station Entrance/Exit",
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3: "Other",
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}
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PICKUP_TYPE_DEFAULT = STATE_UNKNOWN
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PICKUP_TYPE_OPTIONS = {
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0: "Regular",
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1: "None Available",
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2: "Call Agency",
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3: "Contact Driver",
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}
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ROUTE_TYPE_OPTIONS = {
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0: "Tram",
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1: "Subway",
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2: "Rail",
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3: "Bus",
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4: "Ferry",
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5: "Cable Tram",
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6: "Aerial Lift",
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7: "Funicular",
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}
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TIMEPOINT_DEFAULT = True
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TIMEPOINT_OPTIONS = {0: False, 1: True}
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WHEELCHAIR_ACCESS_DEFAULT = STATE_UNKNOWN
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WHEELCHAIR_ACCESS_OPTIONS = {1: True, 2: False}
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WHEELCHAIR_BOARDING_DEFAULT = STATE_UNKNOWN
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WHEELCHAIR_BOARDING_OPTIONS = {1: True, 2: False}
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PLATFORM_SCHEMA = PLATFORM_SCHEMA.extend(
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{ # type: ignore
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vol.Required(CONF_ORIGIN): cv.string,
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vol.Required(CONF_DESTINATION): cv.string,
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vol.Required(CONF_DATA): cv.string,
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vol.Optional(CONF_NAME): cv.string,
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vol.Optional(CONF_OFFSET, default=0): cv.time_period,
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vol.Optional(CONF_TOMORROW, default=False): cv.boolean,
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}
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)
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def get_next_departure(
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schedule: Any,
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start_station_id: Any,
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end_station_id: Any,
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offset: cv.time_period,
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include_tomorrow: bool = False,
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) -> dict:
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"""Get the next departure for the given schedule."""
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now = dt_util.now().replace(tzinfo=None) + offset
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now_date = now.strftime(dt_util.DATE_STR_FORMAT)
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yesterday = now - datetime.timedelta(days=1)
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yesterday_date = yesterday.strftime(dt_util.DATE_STR_FORMAT)
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tomorrow = now + datetime.timedelta(days=1)
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tomorrow_date = tomorrow.strftime(dt_util.DATE_STR_FORMAT)
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# Fetch all departures for yesterday, today and optionally tomorrow,
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# up to an overkill maximum in case of a departure every minute for those
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# days.
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limit = 24 * 60 * 60 * 2
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tomorrow_select = tomorrow_where = tomorrow_order = ""
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if include_tomorrow:
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limit = int(limit / 2 * 3)
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tomorrow_name = tomorrow.strftime("%A").lower()
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tomorrow_select = f"calendar.{tomorrow_name} AS tomorrow,"
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tomorrow_where = f"OR calendar.{tomorrow_name} = 1"
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tomorrow_order = f"calendar.{tomorrow_name} DESC,"
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sql_query = """
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SELECT trip.trip_id, trip.route_id,
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time(origin_stop_time.arrival_time) AS origin_arrival_time,
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time(origin_stop_time.departure_time) AS origin_depart_time,
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date(origin_stop_time.departure_time) AS origin_depart_date,
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origin_stop_time.drop_off_type AS origin_drop_off_type,
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origin_stop_time.pickup_type AS origin_pickup_type,
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origin_stop_time.shape_dist_traveled AS origin_dist_traveled,
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origin_stop_time.stop_headsign AS origin_stop_headsign,
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origin_stop_time.stop_sequence AS origin_stop_sequence,
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origin_stop_time.timepoint AS origin_stop_timepoint,
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time(destination_stop_time.arrival_time) AS dest_arrival_time,
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time(destination_stop_time.departure_time) AS dest_depart_time,
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destination_stop_time.drop_off_type AS dest_drop_off_type,
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destination_stop_time.pickup_type AS dest_pickup_type,
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destination_stop_time.shape_dist_traveled AS dest_dist_traveled,
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destination_stop_time.stop_headsign AS dest_stop_headsign,
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destination_stop_time.stop_sequence AS dest_stop_sequence,
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destination_stop_time.timepoint AS dest_stop_timepoint,
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calendar.{yesterday_name} AS yesterday,
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calendar.{today_name} AS today,
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{tomorrow_select}
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calendar.start_date AS start_date,
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calendar.end_date AS end_date
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FROM trips trip
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INNER JOIN calendar calendar
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ON trip.service_id = calendar.service_id
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INNER JOIN stop_times origin_stop_time
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ON trip.trip_id = origin_stop_time.trip_id
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INNER JOIN stops start_station
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ON origin_stop_time.stop_id = start_station.stop_id
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INNER JOIN stop_times destination_stop_time
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ON trip.trip_id = destination_stop_time.trip_id
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INNER JOIN stops end_station
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ON destination_stop_time.stop_id = end_station.stop_id
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WHERE (calendar.{yesterday_name} = 1
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OR calendar.{today_name} = 1
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{tomorrow_where}
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)
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AND start_station.stop_id = :origin_station_id
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AND end_station.stop_id = :end_station_id
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AND origin_stop_sequence < dest_stop_sequence
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AND calendar.start_date <= :today
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AND calendar.end_date >= :today
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ORDER BY calendar.{yesterday_name} DESC,
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calendar.{today_name} DESC,
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{tomorrow_order}
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origin_stop_time.departure_time
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LIMIT :limit
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""".format(
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yesterday_name=yesterday.strftime("%A").lower(),
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today_name=now.strftime("%A").lower(),
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tomorrow_select=tomorrow_select,
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tomorrow_where=tomorrow_where,
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tomorrow_order=tomorrow_order,
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)
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result = schedule.engine.execute(
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text(sql_query),
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origin_station_id=start_station_id,
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end_station_id=end_station_id,
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today=now_date,
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limit=limit,
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)
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# Create lookup timetable for today and possibly tomorrow, taking into
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# account any departures from yesterday scheduled after midnight,
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# as long as all departures are within the calendar date range.
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timetable = {}
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yesterday_start = today_start = tomorrow_start = None
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yesterday_last = today_last = ""
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for row in result:
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if row["yesterday"] == 1 and yesterday_date >= row["start_date"]:
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extras = {"day": "yesterday", "first": None, "last": False}
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if yesterday_start is None:
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yesterday_start = row["origin_depart_date"]
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if yesterday_start != row["origin_depart_date"]:
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idx = "{} {}".format(now_date, row["origin_depart_time"])
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timetable[idx] = {**row, **extras}
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yesterday_last = idx
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if row["today"] == 1:
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extras = {"day": "today", "first": False, "last": False}
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if today_start is None:
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today_start = row["origin_depart_date"]
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extras["first"] = True
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if today_start == row["origin_depart_date"]:
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idx_prefix = now_date
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else:
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idx_prefix = tomorrow_date
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idx = "{} {}".format(idx_prefix, row["origin_depart_time"])
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timetable[idx] = {**row, **extras}
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today_last = idx
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if (
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"tomorrow" in row
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and row["tomorrow"] == 1
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and tomorrow_date <= row["end_date"]
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):
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extras = {"day": "tomorrow", "first": False, "last": None}
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if tomorrow_start is None:
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tomorrow_start = row["origin_depart_date"]
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extras["first"] = True
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if tomorrow_start == row["origin_depart_date"]:
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idx = "{} {}".format(tomorrow_date, row["origin_depart_time"])
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timetable[idx] = {**row, **extras}
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# Flag last departures.
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for idx in filter(None, [yesterday_last, today_last]):
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timetable[idx]["last"] = True
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_LOGGER.debug("Timetable: %s", sorted(timetable.keys()))
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item = {}
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for key in sorted(timetable.keys()):
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if dt_util.parse_datetime(key) > now:
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item = timetable[key]
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_LOGGER.debug(
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"Departure found for station %s @ %s -> %s", start_station_id, key, item
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)
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break
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if item == {}:
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return {}
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# Format arrival and departure dates and times, accounting for the
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# possibility of times crossing over midnight.
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origin_arrival = now
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if item["origin_arrival_time"] > item["origin_depart_time"]:
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origin_arrival -= datetime.timedelta(days=1)
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origin_arrival_time = "{} {}".format(
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origin_arrival.strftime(dt_util.DATE_STR_FORMAT), item["origin_arrival_time"]
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)
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origin_depart_time = "{} {}".format(now_date, item["origin_depart_time"])
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dest_arrival = now
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if item["dest_arrival_time"] < item["origin_depart_time"]:
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dest_arrival += datetime.timedelta(days=1)
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dest_arrival_time = "{} {}".format(
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dest_arrival.strftime(dt_util.DATE_STR_FORMAT), item["dest_arrival_time"]
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)
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dest_depart = dest_arrival
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if item["dest_depart_time"] < item["dest_arrival_time"]:
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dest_depart += datetime.timedelta(days=1)
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dest_depart_time = "{} {}".format(
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dest_depart.strftime(dt_util.DATE_STR_FORMAT), item["dest_depart_time"]
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)
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depart_time = dt_util.parse_datetime(origin_depart_time)
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arrival_time = dt_util.parse_datetime(dest_arrival_time)
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origin_stop_time = {
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"Arrival Time": origin_arrival_time,
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"Departure Time": origin_depart_time,
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"Drop Off Type": item["origin_drop_off_type"],
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"Pickup Type": item["origin_pickup_type"],
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"Shape Dist Traveled": item["origin_dist_traveled"],
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"Headsign": item["origin_stop_headsign"],
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"Sequence": item["origin_stop_sequence"],
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"Timepoint": item["origin_stop_timepoint"],
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}
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destination_stop_time = {
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"Arrival Time": dest_arrival_time,
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"Departure Time": dest_depart_time,
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"Drop Off Type": item["dest_drop_off_type"],
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"Pickup Type": item["dest_pickup_type"],
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"Shape Dist Traveled": item["dest_dist_traveled"],
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"Headsign": item["dest_stop_headsign"],
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"Sequence": item["dest_stop_sequence"],
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"Timepoint": item["dest_stop_timepoint"],
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}
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return {
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"trip_id": item["trip_id"],
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"route_id": item["route_id"],
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"day": item["day"],
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"first": item["first"],
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"last": item["last"],
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"departure_time": depart_time,
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"arrival_time": arrival_time,
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"origin_stop_time": origin_stop_time,
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"destination_stop_time": destination_stop_time,
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}
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def setup_platform(
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hass: HomeAssistantType,
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config: ConfigType,
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add_entities: Callable[[list], None],
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discovery_info: Optional[dict] = None,
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) -> None:
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"""Set up the GTFS sensor."""
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gtfs_dir = hass.config.path(DEFAULT_PATH)
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data = config[CONF_DATA]
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origin = config.get(CONF_ORIGIN)
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destination = config.get(CONF_DESTINATION)
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name = config.get(CONF_NAME)
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offset = config.get(CONF_OFFSET)
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include_tomorrow = config[CONF_TOMORROW]
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if not os.path.exists(gtfs_dir):
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os.makedirs(gtfs_dir)
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if not os.path.exists(os.path.join(gtfs_dir, data)):
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_LOGGER.error("The given GTFS data file/folder was not found")
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return
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(gtfs_root, _) = os.path.splitext(data)
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sqlite_file = f"{gtfs_root}.sqlite?check_same_thread=False"
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joined_path = os.path.join(gtfs_dir, sqlite_file)
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gtfs = pygtfs.Schedule(joined_path)
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# pylint: disable=no-member
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if not gtfs.feeds:
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pygtfs.append_feed(gtfs, os.path.join(gtfs_dir, data))
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add_entities(
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[GTFSDepartureSensor(gtfs, name, origin, destination, offset, include_tomorrow)]
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)
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class GTFSDepartureSensor(Entity):
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"""Implementation of a GTFS departure sensor."""
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def __init__(
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self,
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gtfs: Any,
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name: Optional[Any],
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origin: Any,
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destination: Any,
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offset: cv.time_period,
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include_tomorrow: bool,
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) -> None:
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"""Initialize the sensor."""
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self._pygtfs = gtfs
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self.origin = origin
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self.destination = destination
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self._include_tomorrow = include_tomorrow
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self._offset = offset
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self._custom_name = name
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self._available = False
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self._icon = ICON
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self._name = ""
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self._state: Optional[str] = None
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self._attributes = {}
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self._agency = None
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self._departure = {}
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self._destination = None
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self._origin = None
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self._route = None
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self._trip = None
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self.lock = threading.Lock()
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self.update()
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@property
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def name(self) -> str:
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"""Return the name of the sensor."""
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return self._name
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@property
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def state(self) -> Optional[str]: # type: ignore
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"""Return the state of the sensor."""
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return self._state
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@property
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def available(self) -> bool:
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"""Return True if entity is available."""
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return self._available
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@property
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def device_state_attributes(self) -> dict:
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"""Return the state attributes."""
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return self._attributes
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@property
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def icon(self) -> str:
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"""Icon to use in the frontend, if any."""
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return self._icon
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@property
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def device_class(self) -> str:
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"""Return the class of this device."""
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return DEVICE_CLASS_TIMESTAMP
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def update(self) -> None:
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"""Get the latest data from GTFS and update the states."""
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with self.lock:
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# Fetch valid stop information once
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if not self._origin:
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stops = self._pygtfs.stops_by_id(self.origin)
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if not stops:
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self._available = False
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_LOGGER.warning("Origin stop ID %s not found", self.origin)
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return
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self._origin = stops[0]
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if not self._destination:
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stops = self._pygtfs.stops_by_id(self.destination)
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if not stops:
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self._available = False
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_LOGGER.warning(
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"Destination stop ID %s not found", self.destination
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)
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return
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self._destination = stops[0]
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self._available = True
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# Fetch next departure
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self._departure = get_next_departure(
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self._pygtfs,
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self.origin,
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self.destination,
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self._offset,
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self._include_tomorrow,
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)
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# Define the state as a UTC timestamp with ISO 8601 format
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if not self._departure:
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self._state = None
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else:
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self._state = dt_util.as_utc(
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self._departure["departure_time"]
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).isoformat()
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# Fetch trip and route details once, unless updated
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if not self._departure:
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self._trip = None
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else:
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trip_id = self._departure["trip_id"]
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if not self._trip or self._trip.trip_id != trip_id:
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_LOGGER.debug("Fetching trip details for %s", trip_id)
|
|
self._trip = self._pygtfs.trips_by_id(trip_id)[0]
|
|
|
|
route_id = self._departure["route_id"]
|
|
if not self._route or self._route.route_id != route_id:
|
|
_LOGGER.debug("Fetching route details for %s", route_id)
|
|
self._route = self._pygtfs.routes_by_id(route_id)[0]
|
|
|
|
# Fetch agency details exactly once
|
|
if self._agency is None and self._route:
|
|
_LOGGER.debug("Fetching agency details for %s", self._route.agency_id)
|
|
try:
|
|
self._agency = self._pygtfs.agencies_by_id(self._route.agency_id)[0]
|
|
except IndexError:
|
|
_LOGGER.warning(
|
|
"Agency ID '%s' was not found in agency table, "
|
|
"you may want to update the routes database table "
|
|
"to fix this missing reference",
|
|
self._route.agency_id,
|
|
)
|
|
self._agency = False
|
|
|
|
# Assign attributes, icon and name
|
|
self.update_attributes()
|
|
|
|
if self._route:
|
|
self._icon = ICONS.get(self._route.route_type, ICON)
|
|
else:
|
|
self._icon = ICON
|
|
|
|
name = "{agency} {origin} to {destination} next departure"
|
|
if not self._departure:
|
|
name = "{default}"
|
|
self._name = self._custom_name or name.format(
|
|
agency=getattr(self._agency, "agency_name", DEFAULT_NAME),
|
|
default=DEFAULT_NAME,
|
|
origin=self.origin,
|
|
destination=self.destination,
|
|
)
|
|
|
|
def update_attributes(self) -> None:
|
|
"""Update state attributes."""
|
|
# Add departure information
|
|
if self._departure:
|
|
self._attributes[ATTR_ARRIVAL] = dt_util.as_utc(
|
|
self._departure["arrival_time"]
|
|
).isoformat()
|
|
|
|
self._attributes[ATTR_DAY] = self._departure["day"]
|
|
|
|
if self._departure[ATTR_FIRST] is not None:
|
|
self._attributes[ATTR_FIRST] = self._departure["first"]
|
|
elif ATTR_FIRST in self._attributes:
|
|
del self._attributes[ATTR_FIRST]
|
|
|
|
if self._departure[ATTR_LAST] is not None:
|
|
self._attributes[ATTR_LAST] = self._departure["last"]
|
|
elif ATTR_LAST in self._attributes:
|
|
del self._attributes[ATTR_LAST]
|
|
else:
|
|
if ATTR_ARRIVAL in self._attributes:
|
|
del self._attributes[ATTR_ARRIVAL]
|
|
if ATTR_DAY in self._attributes:
|
|
del self._attributes[ATTR_DAY]
|
|
if ATTR_FIRST in self._attributes:
|
|
del self._attributes[ATTR_FIRST]
|
|
if ATTR_LAST in self._attributes:
|
|
del self._attributes[ATTR_LAST]
|
|
|
|
# Add contextual information
|
|
self._attributes[ATTR_OFFSET] = self._offset.seconds / 60
|
|
|
|
if self._state is None:
|
|
self._attributes[ATTR_INFO] = (
|
|
"No more departures"
|
|
if self._include_tomorrow
|
|
else "No more departures today"
|
|
)
|
|
elif ATTR_INFO in self._attributes:
|
|
del self._attributes[ATTR_INFO]
|
|
|
|
if self._agency:
|
|
self._attributes[ATTR_ATTRIBUTION] = self._agency.agency_name
|
|
elif ATTR_ATTRIBUTION in self._attributes:
|
|
del self._attributes[ATTR_ATTRIBUTION]
|
|
|
|
# Add extra metadata
|
|
key = "agency_id"
|
|
if self._agency and key not in self._attributes:
|
|
self.append_keys(self.dict_for_table(self._agency), "Agency")
|
|
|
|
key = "origin_station_stop_id"
|
|
if self._origin and key not in self._attributes:
|
|
self.append_keys(self.dict_for_table(self._origin), "Origin Station")
|
|
self._attributes[ATTR_LOCATION_ORIGIN] = LOCATION_TYPE_OPTIONS.get(
|
|
self._origin.location_type, LOCATION_TYPE_DEFAULT
|
|
)
|
|
self._attributes[ATTR_WHEELCHAIR_ORIGIN] = WHEELCHAIR_BOARDING_OPTIONS.get(
|
|
self._origin.wheelchair_boarding, WHEELCHAIR_BOARDING_DEFAULT
|
|
)
|
|
|
|
key = "destination_station_stop_id"
|
|
if self._destination and key not in self._attributes:
|
|
self.append_keys(
|
|
self.dict_for_table(self._destination), "Destination Station"
|
|
)
|
|
self._attributes[ATTR_LOCATION_DESTINATION] = LOCATION_TYPE_OPTIONS.get(
|
|
self._destination.location_type, LOCATION_TYPE_DEFAULT
|
|
)
|
|
self._attributes[
|
|
ATTR_WHEELCHAIR_DESTINATION
|
|
] = WHEELCHAIR_BOARDING_OPTIONS.get(
|
|
self._destination.wheelchair_boarding, WHEELCHAIR_BOARDING_DEFAULT
|
|
)
|
|
|
|
# Manage Route metadata
|
|
key = "route_id"
|
|
if not self._route and key in self._attributes:
|
|
self.remove_keys("Route")
|
|
elif self._route and (
|
|
key not in self._attributes or self._attributes[key] != self._route.route_id
|
|
):
|
|
self.append_keys(self.dict_for_table(self._route), "Route")
|
|
self._attributes[ATTR_ROUTE_TYPE] = ROUTE_TYPE_OPTIONS[
|
|
self._route.route_type
|
|
]
|
|
|
|
# Manage Trip metadata
|
|
key = "trip_id"
|
|
if not self._trip and key in self._attributes:
|
|
self.remove_keys("Trip")
|
|
elif self._trip and (
|
|
key not in self._attributes or self._attributes[key] != self._trip.trip_id
|
|
):
|
|
self.append_keys(self.dict_for_table(self._trip), "Trip")
|
|
self._attributes[ATTR_BICYCLE] = BICYCLE_ALLOWED_OPTIONS.get(
|
|
self._trip.bikes_allowed, BICYCLE_ALLOWED_DEFAULT
|
|
)
|
|
self._attributes[ATTR_WHEELCHAIR] = WHEELCHAIR_ACCESS_OPTIONS.get(
|
|
self._trip.wheelchair_accessible, WHEELCHAIR_ACCESS_DEFAULT
|
|
)
|
|
|
|
# Manage Stop Times metadata
|
|
prefix = "origin_stop"
|
|
if self._departure:
|
|
self.append_keys(self._departure["origin_stop_time"], prefix)
|
|
self._attributes[ATTR_DROP_OFF_ORIGIN] = DROP_OFF_TYPE_OPTIONS.get(
|
|
self._departure["origin_stop_time"]["Drop Off Type"],
|
|
DROP_OFF_TYPE_DEFAULT,
|
|
)
|
|
self._attributes[ATTR_PICKUP_ORIGIN] = PICKUP_TYPE_OPTIONS.get(
|
|
self._departure["origin_stop_time"]["Pickup Type"], PICKUP_TYPE_DEFAULT
|
|
)
|
|
self._attributes[ATTR_TIMEPOINT_ORIGIN] = TIMEPOINT_OPTIONS.get(
|
|
self._departure["origin_stop_time"]["Timepoint"], TIMEPOINT_DEFAULT
|
|
)
|
|
else:
|
|
self.remove_keys(prefix)
|
|
|
|
prefix = "destination_stop"
|
|
if self._departure:
|
|
self.append_keys(self._departure["destination_stop_time"], prefix)
|
|
self._attributes[ATTR_DROP_OFF_DESTINATION] = DROP_OFF_TYPE_OPTIONS.get(
|
|
self._departure["destination_stop_time"]["Drop Off Type"],
|
|
DROP_OFF_TYPE_DEFAULT,
|
|
)
|
|
self._attributes[ATTR_PICKUP_DESTINATION] = PICKUP_TYPE_OPTIONS.get(
|
|
self._departure["destination_stop_time"]["Pickup Type"],
|
|
PICKUP_TYPE_DEFAULT,
|
|
)
|
|
self._attributes[ATTR_TIMEPOINT_DESTINATION] = TIMEPOINT_OPTIONS.get(
|
|
self._departure["destination_stop_time"]["Timepoint"], TIMEPOINT_DEFAULT
|
|
)
|
|
else:
|
|
self.remove_keys(prefix)
|
|
|
|
@staticmethod
|
|
def dict_for_table(resource: Any) -> dict:
|
|
"""Return a dictionary for the SQLAlchemy resource given."""
|
|
return dict(
|
|
(col, getattr(resource, col)) for col in resource.__table__.columns.keys()
|
|
)
|
|
|
|
def append_keys(self, resource: dict, prefix: Optional[str] = None) -> None:
|
|
"""Properly format key val pairs to append to attributes."""
|
|
for attr, val in resource.items():
|
|
if val == "" or val is None or attr == "feed_id":
|
|
continue
|
|
key = attr
|
|
if prefix and not key.startswith(prefix):
|
|
key = f"{prefix} {key}"
|
|
key = slugify(key)
|
|
self._attributes[key] = val
|
|
|
|
def remove_keys(self, prefix: str) -> None:
|
|
"""Remove attributes whose key starts with prefix."""
|
|
self._attributes = {
|
|
k: v for k, v in self._attributes.items() if not k.startswith(prefix)
|
|
}
|