Store message count in room data for easy filtering in Firestore

[giorgio79]

trafficstars

Would be nice to store message count in room data for easy Firestore filtering via the Firestore UI. It cannot filter for if exists or not.

[kopianan]

I think you can do it by adding your own counter on metada inside room class model.

just add logic on dispose chat page to update room data when user close chat page.