User:Abel/experimental.js

console.log("~");

var PersonalDataDataBaseName = "pdio";
var Pete = {id: 11345, name: {first: "Pete", last: "Rock"}, age: 52};

addRecord(PersonalDataDataBaseName, Pete);
recordUpdate(PersonalDataDataBaseName, '["Pete", "Rock"]', 'phone', '+313555777');

function addRecord(pddbname, record){
  var pddb = window.indexedDB.open(pddbname, 1);

  pddb.addEventListener('error', (event) => {
    console.log('Request error:', pddb.error);
  }, false);

  pddb.onupgradeneeded = function() {
    var db = pddb.result;
    var store = db.createObjectStore("MyObjectStore", {keyPath: "id"});
    var index = store.createIndex("NameIndex", ["name.last", "name.first"]);
  };

  pddb.onsuccess = function() {
    var db = pddb.result;
    var tx = db.transaction("MyObjectStore", "readwrite");
    var store = tx.objectStore("MyObjectStore");
    var index = store.index("NameIndex");  
  
    store.put(record);

    tx.oncomplete = function() {
      db.close();
    };  
  };
};

function recordUpdate(pddbname, record, field, value){

  var pddb = window.indexedDB.open(pddbname, 1);

  pddb.addEventListener('error', (event) => {
    console.log('Request error:', pddb.error);
  }, false);

  pddb.onupgradeneeded = function() {
    var db = pddb.result;
    var store = db.createObjectStore("MyObjectStore", {keyPath: "id"});
    var index = store.createIndex("NameIndex", ["name.last", "name.first"]);
  };

  pddb.onsuccess = function() {
        // Start a new transaction
        var db = pddb.result;
        var tx = db.transaction("MyObjectStore", "readwrite");
        var store = tx.objectStore("MyObjectStore");
        var index = store.index("NameIndex");

        var getRecord = index.get(record);
        getRecord.onsuccess = function() {
          console.log("updating");
            getRecord.result.field = value;   // => "Bob"
            store.put(getRecord.result);

            getRecordAgain = index.get(record);
            getRecordAgain.onsuccess = function() {
                console.log(getRecordAgain.result.field);   // => "Bob"
                if ( getRecordAgain.result.field == value ) { 
                  console.log("update succeeded");
                } else {
                  console.log("update unsuccessful");
                }
              };   
            };


      // Close the db when the transaction is done
      tx.oncomplete = function() {
        db.close();
      };
    };
  };