Cannot concat string with entity state

Hi,

I am trying to display either an entity state following by a string or nothing depending on another entity state. I am using this template :

[[ if(binary_sensor.monitoring_ha_updater.state == "on", sensor.monitoring_potential_breaking_changes.state "changes" ,"") ]]

On lovelace side it displays “undefined” as a result instead of “0 changes”. I tried using +,++, . to concat them without success.

Thanks for helping.

[guillaumelamirand]

If you’re not using card-tools for your own plugin, I suggest you instead raise this issue with the maintainer of the plugin you are using.

As the question was regarding the support of templating which you offer with your lib and not the plugin, I thought you were the best person to help me.

In the meantime, I used the following as workarround :

 [[ if(binary_sensor.monitoring_ha_updater.state == "on",
          sensor.monitoring_potential_breaking_changes.state, "") ]] [[
          if(binary_sensor.monitoring_ha_updater.state == "on", "changement(s)
          bloquant(s)", "") ]] 

[thomasloven]

The better alternative is to use jinja2 templating, which is also supported by card-tools.