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Fix small issue related to topic prefix (#18512)

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Fix expansion of topic prefix when discovery message contains non string-type items.
This commit is contained in:
emontnemery 2018-11-19 09:59:07 +01:00 committed by Paulus Schoutsen
parent ab8c127a4a
commit 7e702d3caa
1 changed files with 5 additions and 4 deletions
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9
homeassistant/components/mqtt/discovery.py
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@ -202,10 +202,11 @@ async def async_start(hass: HomeAssistantType, discovery_topic, hass_config,
if TOPIC_BASE in payload: if TOPIC_BASE in payload:
base = payload[TOPIC_BASE] base = payload[TOPIC_BASE]
for key, value in payload.items(): for key, value in payload.items():
if value[0] == TOPIC_BASE and key.endswith('_topic'): if isinstance(value, str):
payload[key] = "{}{}".format(base, value[1:]) if value[0] == TOPIC_BASE and key.endswith('_topic'):
if value[-1] == TOPIC_BASE and key.endswith('_topic'): payload[key] = "{}{}".format(base, value[1:])
payload[key] = "{}{}".format(value[:-1], base) 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 # 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 discovery_id = '_'.join((node_id, object_id)) if node_id else object_id