Method update_map

collab/src/util.rs:327–335

(&self, txn: &mut TransactionMut, id: &str, f: F)

  }

  fn update_map<F>(&self, txn: &mut TransactionMut, id: &str, f: F)
  where
    F: FnOnce(&mut HashMap<String, Any>),
  {
    let map_ref: MapRef = self.upsert(txn, id);
    let mut map = map_ref.to_json(txn).into_map().unwrap();
    f(&mut map);
    Any::from(map).fill(txn, &map_ref).unwrap();
  }

  fn index_by_id<T: ReadTxn>(&self, txn: &T, id: &str) -> Option<u32> {
    let i = self.iter(txn).position(|value| {