I think it's working (?) but it clears every time

[YCMitch]

So after a stupid amount of time, I've got it apparently working. Using john-doherty's post I can make window.appStorage.driver() return as 'SQLiteStorage' ...after a setTimeout of 5 seconds.

I'm defining the driver as shown before I initialize my app:

localforage.defineDriver(window.cordovaSQLiteDriver).then(function() {
    window.appStorage = localforage.createInstance({
        version: 1.0,
        size: 52428800, // 50mb
        name: 'test',
        storeName: 'setup',
        driver: [
            window.cordovaSQLiteDriver._driver, // <-- prefer cordovaSQLiteDriver
            localforage.INDEXEDDB,
            localforage.WEBSQL,
            localforage.LOCALSTORAGE
        ]
    });

    if (window.appStorage.driver() !== window.cordovaSQLiteDriver._driver) {
        console.warn('Not using cordovaSQLiteDriver before setItem.');
    }

    return appStorage.setItem('message', 'It worked!');
});

setTimeout(function(){
alert(window.appStorage.driver())
},5000);

The console.warn says it's not using SQLite, but after a 5 second timeout it says it does. However after re-opening the app, everything is cleared and I'm back to square 1. I'd hazard a guess it's maybe failing to retrieve the storage as it takes however-long to actually get set up, or by creating an instance every time it's creating a new database?

I have no idea. I've spent an enormous amount of time trying to get this to work, but I just can't see how it's going to do that.

Is this anything anyone's experienced before?

[gabn88]

Sounds like you haven't waited till the cordovaSQLiteDriver is load. It might take some time.

I have done:

  $rootScope.localForagePromiseResolve = $rootScope.localForagePromiseResolve || undefined;
  $rootScope.localforageReadyPromise = $rootScope.localforageReadyPromise || new Promise(function(resolve, reject){$rootScope.localForagePromiseResolve=resolve;});

  $ionicPlatform.ready(function () {

    localforage.defineDriver(window.cordovaSQLiteDriver).then(function() {
        return localforage.setDriver([
        	// Try setting cordovaSQLiteDriver if available,
          window.cordovaSQLiteDriver._driver,
          // otherwise use one of the default localforage drivers as a fallback.
          // This should allow you to transparently do your tests in a browser
          localforage.INDEXEDDB,
          localforage.WEBSQL,
          localforage.LOCALSTORAGE
        ]);
    }).then(function() {
      // this should alert "cordovaSQLiteDriver" when in an emulator or a device
      console.log('LocalForage driver set to: '+localforage.driver());
      $rootScope.localForagePromiseResolve();
    })

And before every call to localforage I do:

    return $rootScope.localforageReadyPromise.then(function(){
      return $localForage.keys().then(function(localForageKeys){
          return localForageKeys
      });
    });

Just one way to fix it, but it works fine and as fast as possible (no unnecessary waiting).