Question

I have a model called

class UserTag(models.Model):
  name = models.CharField(max_length=64, unique= True)
  users = models.ManyToManyField(User)

I am trying to filter its contents based on the user like this

usertags = UserTag.objects.filter(users=request.user)

now I want a list of all the tag names for this particular query. I know I can probably use a loop

for tag in usertags:
  tags.append(tag.name)

But what if a user has a 1000 tags? wont this slow down the response?
Is there a more efficient way to handling this?

Answer 1

If you just want the tag names, use a values_list query:

tags = UserTag.objects.filter(users=request.user).values_list('name', flat=True)