def main(global_config, **settings):
""" This function returns a Pyramid WSGI application.
"""
engine = engine_from_config(settings, 'sqlalchemy.')
DBSession.configure(bind=engine)
Base.metadata.bind = engine
session_factory = session_factory_from_settings(settings)
config = Configurator(settings=settings)
config.set_session_factory(session_factory)
config.registry.registerUtility(DBSession, IDBSession)
config.set_authentication_policy(SessionAuthenticationPolicy())
config.set_authorization_policy(ACLAuthorizationPolicy())
# config.scan_horus(models)
config.add_static_view('static', 'static', cache_max_age=3600)
config.scan_horus(models)
config.add_route('index', '/')
config.add_route('course_intro', '/{course}/intro/')
config.add_route('lesson', '/{course}/{lesson}/')
config.add_route('lesson_rest', '/rest/{course}/{lesson}/')
config.add_notfound_view(notfound, append_slash=True)
config.include('horus')
config.include('pyramid_mailer')
# formalchemy
config.include('pyramid_formalchemy')
config.include('pyramid_fanstatic')
config.include('fa.jquery')
# register an admin UI
config.formalchemy_admin('/admin', package='timtec', view='fa.jquery.pyramid.ModelView')
config.add_route('login', '/login')
config.add_route('logout', '/logout')
config.scan()
return config.make_wsgi_app()
