Method index_document

nodedb-spatial/src/geohash_index.rs:56–73

Index a geometry. Only Point geometries are indexed; others are skipped. Returns the geohash string if indexed, None if skipped.

(&mut self, doc_id: &str, geometry: &Geometry)

    /// Index a geometry. Only Point geometries are indexed; others are skipped.
    /// Returns the geohash string if indexed, None if skipped.
    pub fn index_document(&mut self, doc_id: &str, geometry: &Geometry) -> Option<String> {
        let Geometry::Point { coordinates } = geometry else {
            return None;
        };
        let lng = coordinates[0];
        let lat = coordinates[1];

        // Remove old entry if exists.
        self.remove_document(doc_id);

        let hash = geohash_encode(lng, lat, self.precision);
        self.entries.insert(doc_id.to_string(), hash.clone());
        self.prefix_index
            .entry(hash.clone())
            .or_default()
            .push(doc_id.to_string());
        Some(hash)
    }

    /// Remove a document from the geohash index.
    pub fn remove_document(&mut self, doc_id: &str) {