Django REST Framework (AttributeError : Got AttributeError when attempting to get a value for field-CodePudding

Got AttributeError : when attempting to get a value for field Firstname serializer NameSerializer. The serializer field might be named incorrectly and not match any attribute or key on the QuerySet instance. Original exception text was: 'QuerySet' object has no attribute Firstname.

Error: Error

serializers.py

from rest_framework import serializers
from .models import Name, ForeName

class NameSerializer(serializers.ModelSerializer):
   class Meta:
      model = Name
      fields = '__all__'

class ForeNameSerializer(serializers.ModelSerializer):
   forenames = NameSerializer(many=True, read_only=True)
   class Meta:
       model = ForeName
       fields= '__all__'

models.py

from django.db import models
import uuid

# create your models here
class ForeName(models.Model):
   id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
   Forename = models.CharField(max_length=30)

   def __str__(self):
       return self.Forename

class Name(models.Model):
   id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
   Firstname = models.ForeignKey(ForeName, on_delete=models.PROTECT, 
                 related_name="forenames")

views.py

from rest_framework.decorators import api_view
from rest_framework.response import Response
from .serializers import NameSerializer
from .models import Name

# Create your views here.
@api_view(['GET'])
def names_list(request):
   names = Name.objects.all()
   myname = NameSerializer(names)
   return Response({"restult": { 
       "Forename" : myname.data,
       }

CodePudding user response：

You need to add many=True in your serializer when initializing with multiple instances.

myname = NameSerializer(names,many=True)

CodePudding user response：

Firstly, field names should be all lowercase, using underscores instead of camelCase, according to the official document. It's a convention that we all should follow. ex - first_name and fore_name

And as per your question, you should write myname = NameSerializer(names, many=True) in views.py, because you're trying to serialize multiple objects.