Question

If I am creating a list of new model objects based on some form input, e.g.,

new_items = []
for name, value in self.cleaned_data.items():
  if name.startswith('content_item_'):
      new_items.append(ContentItem(item=value))

# can I add the entire new_items list to the database in one swoop? 

I’m having trouble finding whether this in the docs, which generally refer to creating objects one at a time via the .save() method. But one-at-a-time seems inefficient when you have a whole list of objects to add.

Thanks!

Answer 1

https://docs.djangoproject.com/en/dev/ref/models/querysets/#bulk-create

Edit: Unfortunately this is not on 1.3

Original Answer

Thank god for bulk_create!

You could then do something like this:

ContentItem.objects.bulk_create(new_items)

For those too lazy to click the link, here is the example from the docs:

>>> Entry.objects.bulk_create([
...     Entry(headline="Django 1.0 Released"),
...     Entry(headline="Django 1.1 Announced"),
...     Entry(headline="Breaking: Django is awesome")
... ])