func cancella(at offset: IndexSet) {
        guard let intindex = Array(offset).first else { return }
        let id = dm.Storage[intindex].properties["id"] as? String ?? ""
        DataManager.Shared.cancellaPosto(id)
    }

func cancellaPosto(_ ID: String) {
        let operazioneSearch = Search<Entity>(graph: DB).where(.type("Posti") && "id" == ID)
        let operazione =  operazioneSearch.sync(completion: nil)
        
        if let opeDaCanc = operazione.first {
            opeDaCanc.delete()
            if let index = Storage.firstIndex(of: opeDaCanc) {
                self.Storage.remove(at: index)
                self.objectWillChange.send()
            }
        }

        DB.async {(Bool, error) in
            if let e = error {
                print(e.localizedDescription)
            }
        }
    }