From 82f66df578dd2a1df0d5628921436e89bb15388a Mon Sep 17 00:00:00 2001
From: farmio <farmio@alphart.net>
Date: Thu, 5 Aug 2021 23:37:53 +0200
Subject: [PATCH] add CONF_STATE_CLASS to const.py

---
 homeassistant/components/knx/schema.py     | 2 +-
 homeassistant/components/knx/sensor.py     | 4 ++--
 homeassistant/components/mqtt/sensor.py    | 2 +-
 homeassistant/components/template/const.py | 1 -
 homeassistant/const.py                     | 1 +
 5 files changed, 5 insertions(+), 5 deletions(-)

diff --git a/homeassistant/components/knx/schema.py b/homeassistant/components/knx/schema.py
index 196c171c9b5..02a19e731b8 100644
--- a/homeassistant/components/knx/schema.py
+++ b/homeassistant/components/knx/schema.py
@@ -24,6 +24,7 @@ from homeassistant.const import (
     CONF_HOST,
     CONF_NAME,
     CONF_PORT,
+    CONF_STATE_CLASS,
     CONF_TYPE,
 )
 import homeassistant.helpers.config_validation as cv
@@ -725,7 +726,6 @@ class SensorSchema(KNXPlatformSchema):
 
     CONF_ALWAYS_CALLBACK = "always_callback"
     CONF_STATE_ADDRESS = CONF_STATE_ADDRESS
-    CONF_STATE_CLASS = "state_class"
     CONF_SYNC_STATE = CONF_SYNC_STATE
     DEFAULT_NAME = "KNX Sensor"
 
diff --git a/homeassistant/components/knx/sensor.py b/homeassistant/components/knx/sensor.py
index 5fee8446e91..2eb6a0c4ca6 100644
--- a/homeassistant/components/knx/sensor.py
+++ b/homeassistant/components/knx/sensor.py
@@ -7,7 +7,7 @@ from xknx import XKNX
 from xknx.devices import Sensor as XknxSensor
 
 from homeassistant.components.sensor import DEVICE_CLASSES, SensorEntity
-from homeassistant.const import CONF_NAME, CONF_TYPE
+from homeassistant.const import CONF_NAME, CONF_STATE_CLASS, CONF_TYPE
 from homeassistant.core import HomeAssistant
 from homeassistant.helpers.entity_platform import AddEntitiesCallback
 from homeassistant.helpers.typing import ConfigType, DiscoveryInfoType, StateType
@@ -63,7 +63,7 @@ class KNXSensor(KnxEntity, SensorEntity):
         self._attr_force_update = self._device.always_callback
         self._attr_unique_id = str(self._device.sensor_value.group_address_state)
         self._attr_unit_of_measurement = self._device.unit_of_measurement()
-        self._attr_state_class = config.get(SensorSchema.CONF_STATE_CLASS)
+        self._attr_state_class = config.get(CONF_STATE_CLASS)
 
     @property
     def state(self) -> StateType:
diff --git a/homeassistant/components/mqtt/sensor.py b/homeassistant/components/mqtt/sensor.py
index 239af7b450a..676ff4d7729 100644
--- a/homeassistant/components/mqtt/sensor.py
+++ b/homeassistant/components/mqtt/sensor.py
@@ -17,6 +17,7 @@ from homeassistant.const import (
     CONF_DEVICE_CLASS,
     CONF_FORCE_UPDATE,
     CONF_NAME,
+    CONF_STATE_CLASS,
     CONF_UNIT_OF_MEASUREMENT,
     CONF_VALUE_TEMPLATE,
 )
@@ -42,7 +43,6 @@ _LOGGER = logging.getLogger(__name__)
 CONF_EXPIRE_AFTER = "expire_after"
 CONF_LAST_RESET_TOPIC = "last_reset_topic"
 CONF_LAST_RESET_VALUE_TEMPLATE = "last_reset_value_template"
-CONF_STATE_CLASS = "state_class"
 
 MQTT_SENSOR_ATTRIBUTES_BLOCKED = frozenset(
     {
diff --git a/homeassistant/components/template/const.py b/homeassistant/components/template/const.py
index 31896e930e4..661953bcfa5 100644
--- a/homeassistant/components/template/const.py
+++ b/homeassistant/components/template/const.py
@@ -25,4 +25,3 @@ CONF_AVAILABILITY = "availability"
 CONF_ATTRIBUTES = "attributes"
 CONF_PICTURE = "picture"
 CONF_OBJECT_ID = "object_id"
-CONF_STATE_CLASS = "state_class"
diff --git a/homeassistant/const.py b/homeassistant/const.py
index ccd42ca32bb..78f3c11d8bd 100644
--- a/homeassistant/const.py
+++ b/homeassistant/const.py
@@ -181,6 +181,7 @@ CONF_SLAVE: Final = "slave"
 CONF_SOURCE: Final = "source"
 CONF_SSL: Final = "ssl"
 CONF_STATE: Final = "state"
+CONF_STATE_CLASS: Final = "state_class"
 CONF_STATE_TEMPLATE: Final = "state_template"
 CONF_STRUCTURE: Final = "structure"
 CONF_SWITCHES: Final = "switches"