text: from flask import Flask, request, session
  from flask.ext.sqlalchemy import SQLAlchemy
  
  from flask.ext import admin
  from flask.ext.babelex import Babel
  
  from flask.ext.admin.contrib import sqla
  
  # Create application
  app = Flask(__name__)
  
  # Create dummy secrey key so we can use sessions
  app.config['SECRET_KEY'] = '12345678'
  
  # Create in-memory database
  app.config['SQLALCHEMY_DATABASE_URI'] = 'sqlite:///test.sqlite'
  app.config['SQLALCHEMY_ECHO'] = True
  db = SQLAlchemy(app)
  
  # Initialize babel
  babel = Babel(app)
  
  
  @babel.localeselector
  def get_locale():
      override = request.args.get('lang')
  
      if override:
          session['lang'] = override
  
      return session.get('lang', 'en')
  
  
  # Create models
  class User(db.Model):
      id = db.Column(db.Integer, primary_key=True)
      username = db.Column(db.String(80), unique=True)
      email = db.Column(db.String(120), unique=True)
  
      # Required for administrative interface
      def __unicode__(self):
          return self.username
  
  
  class Post(db.Model):
      id = db.Column(db.Integer, primary_key=True)
      title = db.Column(db.String(120))
      text = db.Column(db.Text, nullable=False)
      date = db.Column(db.DateTime)
  
      user_id = db.Column(db.Integer(), db.ForeignKey(User.id))
      user = db.relationship(User, backref='posts')
  
      def __unicode__(self):
          return self.title
  
  
  # Flask views
  @app.route('/')
  def index():
      return '<a href="/admin/">Click me to get to Admin!</a>'
  
  if __name__ == '__main__':
      # Create admin
      admin = admin.Admin(app, 'Simple Models')
  
      #admin.locale_selector(get_locale)
  
      # Add views
      admin.add_view(sqla.ModelView(User, db.session))
      admin.add_view(sqla.ModelView(Post, db.session))
  
      # Create DB
      db.create_all()
  
      # Start app
      app.run(debug=True)
  