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Fix small issue related to topic prefix #18512

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merged 1 commit into from Nov 19, 2018
Merged

Fix small issue related to topic prefix #18512

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9 changes: 5 additions & 4 deletions homeassistant/components/mqtt/discovery.py
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Expand Up @@ -202,10 +202,11 @@ async def async_device_message_received(topic, payload, qos):
if TOPIC_BASE in payload:
base = payload[TOPIC_BASE]
for key, value in payload.items():
if value[0] == TOPIC_BASE and key.endswith('_topic'):
payload[key] = "{}{}".format(base, value[1:])
if value[-1] == TOPIC_BASE and key.endswith('_topic'):
payload[key] = "{}{}".format(value[:-1], base)
if isinstance(value, str):
if value[0] == TOPIC_BASE and key.endswith('_topic'):
payload[key] = "{}{}".format(base, value[1:])
if value[-1] == TOPIC_BASE and key.endswith('_topic'):
payload[key] = "{}{}".format(value[:-1], base)

# If present, the node_id will be included in the discovered object id
discovery_id = '_'.join((node_id, object_id)) if node_id else object_id
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