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Improve handling of MQTT light discovery #19436

merged 1 commit into from Dec 24, 2018


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emontnemery commented Dec 18, 2018


Improve handling of MQTT light discovery message.

When refactoring the mqtt_json and mqtt_template lights, backwards compatibility was added for MQTT discovery messages such that discovery messages setting "platform":"mqtt_json", "platform":"mqtt" or "platform":"mqtt_template" would still work by translating to the new schema configuration variable.

This PR makes the backwards compatibility more intuitive and less error prone by:

  • Not setting the schema configuration variable unless platform is light
  • Not overwriting the schema configuration variable if it is set
  • Not setting the schema configuration varible if platform is set to mqtt


  • The code change is tested and works locally.
  • Local tests pass with tox. Your PR cannot be merged unless tests pass
  • There is no commented out code in this PR.

@emontnemery emontnemery force-pushed the emontnemery:fix_mqtt_light_schema branch from 6b069a6 to 200f93c Dec 19, 2018

@emontnemery emontnemery requested a review from OttoWinter Dec 21, 2018


fabaff approved these changes Dec 24, 2018

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fabaff left a comment

Looks good to me 🐦

@fabaff fabaff merged commit a8797a0 into home-assistant:dev Dec 24, 2018

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@wafflebot wafflebot bot removed the in progress label Dec 24, 2018

dshokouhi added a commit to dshokouhi/home-assistant that referenced this pull request Dec 25, 2018

mxworm added a commit to mxworm/home-assistant that referenced this pull request Dec 25, 2018

Merge branch 'dev' into current
* dev: (27 commits)
  Add device_id configuration option to Bluetooth tracker (home-assistant#18539)
  Add homematicip cloud full flush measuring switch (home-assistant#19247)
  Added support for triggered state on NX584 alarm. (home-assistant#19524)
  Add HomematicIP SMI55 device (home-assistant#19400)
  Clean up homematicip cloud (home-assistant#19481)
  Improve Lutron RadioRA2 support, adding switches and scenes (home-assistant#18330)
  Remove global from ZHA application controller (home-assistant#19557)
  Update homekit controller to homekit==0.12.0 (home-assistant#19549)
  Improve handling of MQTT light discovery (home-assistant#19436)
  Fix support for base topic for empty values in MQTT discovery msg (home-assistant#19501)
  Configure ZHA entity on new ZHA device join (home-assistant#19470)
  Add hub- and device-info for tellduslive (home-assistant#19180)
  Fix issues in ZHA light (home-assistant#19368)
  Updated to support per device find iphone sound. (home-assistant#19535)
  Change ISY binary_sensor subnode to hex (home-assistant#19471)
  increase robustness, when something upstream fails (home-assistant#19493)
  Support ZHA light turn_off transition (home-assistant#19531)
  Pywemo version bump (home-assistant#19538)
  Make ZHA entities non-polled by default (home-assistant#19536)
  Add ZHA occupancy sensor (home-assistant#19365)

@balloob balloob referenced this pull request Jan 10, 2019


0.85.0 #19897

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