pyramid_sqla.py

pyramid_sqla.py

# -*- coding: utf-8 -*-
 
from sqlalchemy import engine_from_config
from sqlalchemy.ext.declarative import declarative_base
from sqlalchemy.orm import sessionmaker
 
from zope.sqlalchemy import register
 
 
Base = declarative_base()
 
 
def get_session_maker(settings, prefix='sqlalchemy.'):
    engine = engine_from_config(settings, prefix)
    maker = sessionmaker()
    maker.configure(bind=engine)
    return maker
 
 
def get_session(request, maker):
    session = maker()
    register(session, transaction_manager=request.tm)
    return session
 
 
def includeme(config):
    config.include('pyramid_tm')
    settings = config.get_settings()
    maker = get_session_maker(settings)
    config.add_request_method('db', lambda: maker(), reify=True)

Can't the lambda be replaced with a class that has the get_session_maker work in its init and a call used by add_request_method?