send empty topic instead of logging an error on messages without a single field (fixes #817)

2023-09-23 12:34:21 +02:00
parent 70db4fa509
commit 1c1b39ea29
1 changed files with 4 additions and 0 deletions
@@ -1381,6 +1381,10 @@ void MqttHandler::publishMessage(const Message* message, ostringstream* updates,
      *updates << message->getCircuit() << UI_FIELD_SEPARATOR << message->getName() << UI_FIELD_SEPARATOR;
    }
    result_t result = message->decodeLastData(false, nullptr, -1, outputFormat, updates);
+    if (result == RESULT_EMPTY) {
+      publishEmptyTopic(getTopic(message));  // alternatively: , json ? "null" : "");
+      return;
+    }
    if (result != RESULT_OK) {
      logOtherError("mqtt", "decode %s %s: %s", message->getCircuit().c_str(), message->getName().c_str(),
          getResultCode(result));