Bird
0
0

How would you write an async function to fetch usernames of all active users using Django's async ORM?

hard📝 Application Q8 of 15
Django - Async Django
How would you write an async function to fetch usernames of all active users using Django's async ORM?
Aasync def get_usernames(): users = User.objects.filter(active=True).values_list('username', flat=True) return users
Basync def get_usernames(): users = await User.objects.filter(active=True).values_list('username', flat=True).all() return users
Casync def get_usernames(): users = await User.objects.filter(active=True).values_list('username', flat=True).aall() return users
Dasync def get_usernames(): users = await User.objects.afilter(active=True).values_list('username', flat=True) return list(users)
Step-by-Step Solution
Solution:

  1. Step 1: Use async ORM to filter and get values

    Use 'await' with QuerySet methods; 'values_list' returns QuerySet of usernames.

  2. Step 2: Convert QuerySet to list

    Awaiting the async QuerySet returns a list of usernames directly.

  3. Final Answer:

    Use 'await' with afilter and values_list, then convert to list -> Option D

  4. Quick Check:

    Async afilter + values_list + await + list() = async def get_usernames(): users = await User.objects.afilter(active=True).values_list('username', flat=True) return list(users) [OK]
Quick Trick: Await QuerySet, then convert to list for results [OK]
Common Mistakes:
MISTAKES
  • Not awaiting the QuerySet
  • Using non-existent 'aall()' method
  • Awaiting 'all()' instead of QuerySet

Want More Practice?

15+ quiz questions · All difficulty levels · Free

Free Signup - Practice All Questions
More Django Quizzes
Celery and Background Tasks - Why background tasks matter - Quiz 14medium DRF Advanced Features - Nested serializers - Quiz 7medium Deployment and Production - Nginx as reverse proxy - Quiz 7medium Deployment and Production - WhiteNoise for static files - Quiz 2easy Deployment and Production - Gunicorn as WSGI server - Quiz 14medium Django REST Framework Basics - APIView for custom endpoints - Quiz 7medium Security Best Practices - Why Django security matters - Quiz 3easy Security Best Practices - SQL injection protection via ORM - Quiz 9hard Security Best Practices - XSS prevention in templates - Quiz 11easy Signals - Connecting signal handlers - Quiz 7medium