ssteuteville

def batch_query_set(query_set, single=False, batch_size=1000):
    try:
        last_id = query_set.order_by('-id')[0].id
        first_id = query_set.order_by('id')[0].id
        for start in range(first_id, last_id + 1, batch_size):
            end = min(start + batch_size - 1, last_id)
            records = query_set.filter(id__range=(start, end)).all()
            if single:
                for record in records:
                    yield record

JohnStuartRutledge

Django Idioms

General Tips

• put methods that apply to a single instance of a Model on the model class itself
• put methods meant to query against a Models entire table that models corresponding managers.py file.
• if a models.py file gets too long to manage then create a models directory and place an __init__ file in it.
• try to avoid using signals, but if you must then put them in a signals.py file