21-indexed-geojson.js

updateLayer(layerId,GeoJSON,callback){
    var newVersion = this.getVersion() + 1;
    this.setVersion(newVersion);
    var request = window.indexedDB.open('gislayer', newVersion);
    request.onsuccess = function (event) {
      var db = event.target.result;
      var store = db.transaction(['layers'], "readwrite").objectStore('layers');
      var data = {
        layerid: layerId,
        geojson: GeoJSON,
      };
      store.put(data);
      db.close();
      callback(true);
    }
    request.onerror = function (e1) {
      var db = e1.target.result;
      db.close();
      console.log(e1.target.error.message);
      callback(false);
    }
  }