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pythondjangopython-3.6django-1.8

How to add multiple users to a single auth_group in Django

I have a list of users and an auth group called 'group1'. These users are created through the bulk_create method in Django. Now I need to add all these users to group 'group1'. I can achieve this with a for loop like:

group1 = Groups.objects.get(name='group1') 
for user in users:
    group1.user_set.add(user)

but I am wondering if there are any easy and better ways without using the for loop.

Solution

  • The add() method accepts a list of objects:

    group1 = Groups.objects.get(name='group1') 
group1.user_set.add(*users)

    This is slightly tidier, but I'm not sure you'll notice any difference in performance.

    See the docs on many-to-many relationships for more info.