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Avoid constructing mqtt json attrs template if its not defined (#118146)

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J. Nick Koston 2024-05-25 16:13:54 -10:00 committed by GitHub
parent 0ae5275f01
commit 04101b044b
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1 changed files with 7 additions and 6 deletions
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13
homeassistant/components/mqtt/mixins.py
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@ -387,9 +387,10 @@ class MqttAttributesMixin(Entity):
def _attributes_prepare_subscribe_topics(self) -> None:
"""(Re)Subscribe to topics."""
self._attr_tpl = MqttValueTemplate(
self._attributes_config.get(CONF_JSON_ATTRS_TEMPLATE), entity=self
).async_render_with_possible_json_value
if template := self._attributes_config.get(CONF_JSON_ATTRS_TEMPLATE):
self._attr_tpl = MqttValueTemplate(
template, entity=self
).async_render_with_possible_json_value
self._attributes_sub_state = async_prepare_subscribe_topics(
self.hass,
self._attributes_sub_state,
@ -422,9 +423,9 @@ class MqttAttributesMixin(Entity):
@callback
def _attributes_message_received(self, msg: ReceiveMessage) -> None:
"""Update extra state attributes."""
if TYPE_CHECKING:
assert self._attr_tpl is not None
payload = self._attr_tpl(msg.payload)
payload = (
self._attr_tpl(msg.payload) if self._attr_tpl is not None else msg.payload
)
try:
json_dict = json_loads(payload) if isinstance(payload, str) else None
except ValueError: