I'm working on the monuments database and I ran into some problems for France. I have 43608 items in the database of which 11752 items have as municipality 'non'. This is caused by the variable "commune" which is both in the row as in the header template.

Yes, the problem was noticed before but we never came around fixing it. Thanks for bringing that up.

Could someone please change this at https://fr.wikipedia.org/w/index.php?title=Mod%C3%A8le:En-t%C3%AAte_de_tableau_MH&action=edit to French equivalent of "hide_municipality"? I can have my bot rename the variable, that's pretty straightforward. That will clear the way for the next step.

I see you went ahead and changed that − thanks!

For easy navigation in the mobile app we are including local information for sources. This was already done for a lot of countries, but not for France yet. If it's setup you can browse: France -> Midi-Pyrénées -> Haute-Garonne -> Toulouse (I left out the arrondissement step).

Yes, please leave other levels (cantons, arrondissement etc.) out − They are not really a relevant information in France.

For this to work we need to include some information in the header templates. This is not shown to the user, just used for this navigation. For the top levels we use ISO 3166 codes, for France that is https://en.wikipedia.org/wiki/ISO_3166-2:FR . For https://fr.wikipedia.org/wiki/Liste_des_monuments_historiques_de_Toulouse this would be something like:
{{En-tête de tableau MH|région_iso=fr-n|département_iso=fr-31|commune=[[Toulouse]]}}

Are région_iso and département_iso good names or should it be something different?

Good enough names :)

Who wants to help to get this working for France?

Poulpy and I had a look at this, looks good. We’ll find some folks of the Monuments project to help with that. :-)

Thanks a lot for your work!

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Jean-Frédéric