SQLite: review constructor

[mlynch]

Right now the SQLite plugin requires you to call new on it before you use it. I don't think this should be required: https://github.com/litehelpers/Cordova-sqlite-storage

[ihadeed]

Yeah you're right...

openDatabase should be a static function that creates a new SQLite object and sets it's _objectInstance value. It will resolve an instance of SQLite on success, or reject with the error if failed.

SQLite.openDatabse('path/to/db').then((db: SQLite) => {

  db.transaction(...);

}).catch(e => console.log(e));

[mlynch]

Why does it need to be instance based?

[ihadeed]

@mlynch to eliminate the need to use callbacks. Some methods have callbacks in them and if we don't make it instance based we wouldn't be able to replace those callbacks with promises.