How to return username instead of user object in DRF?

I want to set a username for each object. Here is my models.py

from django.contrib.auth.models import User  from django.conf import settings      # Tweet Model  class TweetModel(models.Model):      text = models.TextField(max_length=300, blank=False)      created_at = models.DateTimeField(auto_now_add=True)      owner = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, blank=True)      username = models.CharField(max_length=100, blank=True)  

And viewset.py

from .models import TweetModel  from rest_framework import viewsets, permissions      # TweetViewset  class TweetViewset(viewsets.ModelViewSet):      permission_classes = [          permissions.IsAuthenticated      ]      serializer_class = TweetSerializer        def get_queryset(self):          ordered = TweetModel.objects.order_by('-created_at')          return ordered        def perform_create(self, serializer):          serializer.save(owner=self.request.user, username=self.request.user.username)  

But it is not working. Error is

django.db.utils.ProgrammingError: column tweets_tweetmodel.username does not exist  LINE 1: ...el"."created_at", "tweets_tweetmodel"."owner_id", "tweets_tw...  

Can you help, please?

https://stackoverflow.com/questions/65821040/how-to-return-username-instead-of-user-object-in-drf January 21, 2021 at 12:05PM