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Updated example component (#6772)

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Markus Nigbur 2018-11-01 09:09:03 +01:00 committed by Fabian Affolter
parent 1136cb2a2f
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source/_cookbook/python_component_automation.markdown
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@ -26,28 +26,33 @@ example:
target: TARGET_ENTITY target: TARGET_ENTITY
``` ```
Configuration variables: {% configuration %}
target:
- **target** (*Required*): TARGET_ENTITY should be one of your devices that can be turned on and off, e.g., a light or a switch. Example value could be light.Ceiling or switch.AC (if you have these devices with those names). description: TARGET_ENTITY should be one of your devices that can be turned on and off, e.g., a light or a switch. Example value could be light.Ceiling or switch.AC (if you have these devices with those names).
required: true
type: string
{% endconfiguration %}
Create the file `<config dir>/custom_components/example.py` and copy paste the content below: Create the file `<config dir>/custom_components/example.py` and copy paste the content below:
```python ```python
""" """
Example of a custom component. Example of a custom component.
""" """
import time
import logging import logging
import time
import voluptuous as vol
from homeassistant.const import STATE_HOME, STATE_NOT_HOME, STATE_ON, STATE_OFF
from homeassistant.helpers import validate_config
from homeassistant.helpers.event_decorators import \
track_state_change, track_time_change
from homeassistant.helpers.service import service
import homeassistant.components as core import homeassistant.components as core
from homeassistant.components import device_tracker import homeassistant.helpers.config_validation as cv
from homeassistant.components import light from homeassistant.components import device_tracker, light
from homeassistant.const import (ATTR_ENTITY_ID, SERVICE_TURN_OFF,
SERVICE_TURN_ON, STATE_HOME, STATE_NOT_HOME,
STATE_OFF, STATE_ON)
from homeassistant.core import split_entity_id
from homeassistant.helpers.event import (async_track_state_change,
async_track_time_change)
# The domain of your component. Should be equal to the name of your component. # The domain of your component. Should be equal to the name of your component.
DOMAIN = "example" DOMAIN = "example"
@ -69,17 +74,20 @@ SERVICE_FLASH = 'flash'
# Shortcut for the logger # Shortcut for the logger
_LOGGER = logging.getLogger(__name__) _LOGGER = logging.getLogger(__name__)
def setup(hass, config):
"""Setup example component."""
global TARGET_ID
# Validate that all required config options are given. # Validate that all required config options are given.
if not validate_config(config, {DOMAIN: [CONF_TARGET]}, _LOGGER): CONFIG_SCHEMA = vol.Schema({
return False DOMAIN: vol.Schema({
vol.Optional(CONF_TARGET): cv.entity_id
})
}, extra=vol.ALLOW_EXTRA)
async def async_setup(hass, config):
"""Setup example component."""
TARGET_ID = config[DOMAIN][CONF_TARGET] TARGET_ID = config[DOMAIN][CONF_TARGET]
domain = split_entity_id(TARGET_ID)[0]
data = {ATTR_ENTITY_ID: TARGET_ID}
# Validate that the target entity id exists. # Validate that the target entity id exists.
if hass.states.get(TARGET_ID) is None: if hass.states.get(TARGET_ID) is None:
_LOGGER.error("Target entity id %s does not exist", _LOGGER.error("Target entity id %s does not exist",
@ -90,57 +98,39 @@ def setup(hass, config):
TARGET_ID = None TARGET_ID = None
return False return False
# Tell the bootstrapper that we initialized successfully. async def async_switch_on(entity_id, old_state, new_state):
return True """Callback to turn on our target entity"""
@track_state_change(device_tracker.ENTITY_ID_ALL_DEVICES)
def track_devices(hass, entity_id, old_state, new_state):
"""Called when the group.all devices change state."""
# If the target id is not set, return # If the target id is not set, return
if not TARGET_ID: if not TARGET_ID:
return return
# If anyone comes home and the entity is not on, turn it on. if not core.is_on(hass, TARGET_ID):
if new_state.state == STATE_HOME and not core.is_on(hass, TARGET_ID): await hass.services.async_call(domain, SERVICE_TURN_ON, data)
core.turn_on(hass, TARGET_ID) async def async_switch_off(entity_id, old_state, new_state):
"""Callback to turn off our target entity"""
# If the target id is not set, return
if not TARGET_ID:
return
# If all people leave the house and the entity is on, turn it off. if core.is_on(hass, TARGET_ID):
elif new_state.state == STATE_NOT_HOME and core.is_on(hass, TARGET_ID): await hass.services.async_call(domain, SERVICE_TURN_OFF, data)
core.turn_off(hass, TARGET_ID) async def async_wake_up(service):
@track_time_change(hour=7, minute=0, second=0)
def wake_up(hass, now):
"""Turn light on in the morning. """Turn light on in the morning.
Turn the light on at 7 AM if there are people home and it is not already Turn the light on when called, but only if there are people home
on. and it is not already on.
""" """
if not TARGET_ID: if not TARGET_ID:
return return
if device_tracker.is_on(hass) and not core.is_on(hass, TARGET_ID): if device_tracker.is_on(hass) and not core.is_on(hass, TARGET_ID):
_LOGGER.info('People home at 7AM, turning it on') _LOGGER.info('People home at 7AM, turning target on')
core.turn_on(hass, TARGET_ID) await hass.services.async_call(domain, SERVICE_TURN_ON, data)
async def async_flash_service(service):
@track_state_change(light.ENTITY_ID_ALL_LIGHTS, STATE_ON, STATE_OFF) """Service callback that will toggle the target.
def all_lights_off(hass, entity_id, old_state, new_state):
"""If all lights turn off, turn off."""
if not TARGET_ID:
return
if core.is_on(hass, TARGET_ID):
_LOGGER.info('All lights have been turned off, turning it off')
core.turn_off(hass, TARGET_ID)
@service(DOMAIN, SERVICE_FLASH)
def flash_service(hass, call):
"""Service that will toggle the target.
Set the light to off for 10 seconds if on and vice versa. Set the light to off for 10 seconds if on and vice versa.
""" """
@ -148,12 +138,33 @@ def flash_service(hass, call):
return return
if core.is_on(hass, TARGET_ID): if core.is_on(hass, TARGET_ID):
core.turn_off(hass, TARGET_ID) # We need this call to run blocking, as we want to wait 10s after it finished
await hass.services.async_call(domain, SERVICE_TURN_OFF, data, blocking=True)
time.sleep(10) time.sleep(10)
core.turn_on(hass, TARGET_ID) await hass.services.async_call(domain, SERVICE_TURN_ON, data)
else: else:
core.turn_on(hass, TARGET_ID) await hass.services.async_call(domain, SERVICE_TURN_ON, data, blocking=True)
time.sleep(10) time.sleep(10)
core.turn_off(hass, TARGET_ID) await hass.services.async_call(domain, SERVICE_TURN_OFF, data)
# register the example.flash service
hass.services.async_register(DOMAIN, SERVICE_FLASH, async_flash_service)
# If all lights turn off, turn off.
async_track_state_change(
hass, light.ENTITY_ID_ALL_LIGHTS, async_switch_off, STATE_ON, STATE_OFF)
# If all people leave the house and the entity is on, turn it off.
async_track_state_change(
hass, device_tracker.ENTITY_ID_ALL_DEVICES, async_switch_off, STATE_HOME, STATE_NOT_HOME)
# If anyone comes home and the entity is not on, turn it on.
async_track_state_change(
hass, device_tracker.ENTITY_ID_ALL_DEVICES, async_switch_on, STATE_NOT_HOME, STATE_HOME)
# Call wakeup callback at 7 AM
async_track_time_change(hass, async_wake_up, hour=7, minute=00, second=00)
# Tell the bootstrapper that we initialized successfully.
return True
``` ```