Case Insensitive Flask-SQLAlchemy Query

I'm using Flask-SQLAlchemy to query from a database of users; however, while

    user = models.User.query.filter_by(username="ganye").first()

will return

    <User u'ganye'>


    user = models.User.query.filter_by(username="GANYE").first()



I'm wondering if there's a way to query the database in a case insensitive way, so that the second example will still return

    <User u'ganye'>

You can do it by using either the lower or upper functions in your filter:

    from sqlalchemy import func
    user = models.User.query.filter(func.lower(User.username) == func.lower("GaNyE")).first()

Another option is to do searching using ilike instead of like: