How to add multiple objects to ManyToMany relationship at once in Django ?
Solution 1:
Use: object.m2mfield.add(*items)
as described in the documentation:
add()
accepts an arbitrary number of arguments, not a list of them.
add(obj1, obj2, obj3, ...)
To expand that list into arguments, use *
add(*[obj1, obj2, obj3])
Addendum:
Django does not call obj.save()
for each item but uses bulk_create()
, instead.
Solution 2:
To add on, If you want to add them from a queryset
Example
# Returns a queryset
permissions = Permission.objects.all()
# Add the results to the many to many field (notice the *)
group = MyGroup.objects.get(name='test')
group.permissions.add(*permissions)
From: Insert queryset results into ManytoManyfield