AttributeError: 'QuerySet' object has no attribute 'pk': When I try to Bulk Update and Delete the Records

[shasan11]

models.py

import uuid
from django.db import models
from django.contrib.auth.models import User
from django.utils import timezone

class ToDoCategory(models.Model):
    """Model representing a category for ToDos (e.g. Work, Personal)."""
    id = models.BigAutoField(primary_key=True)  # Explicitly define id field
    uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
    name = models.CharField(max_length=100, unique=True)
    description = models.TextField(blank=True, null=True)
    active=models.BooleanField(default=True)

    class Meta:
        verbose_name = 'To-Do Category'
        verbose_name_plural = 'To-Do Categories'

    def __str__(self):
        return self.name


class ToDoTag(models.Model):
    """Model representing tags for ToDos (e.g. Urgent, Important)."""
    id = models.BigAutoField(primary_key=True)  # Explicitly define id field
    uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
    name = models.CharField(max_length=50, unique=True)
    color = models.CharField(max_length=7, default='#000000')  # Hex color code
    active=models.BooleanField(default=True)
    
    class Meta:
        verbose_name = 'To-Do Tag'
        verbose_name_plural = 'To-Do Tags'

    def __str__(self):
        return self.name


class ToDo(models.Model):
    """Model representing a ToDo item."""
    PRIORITY_CHOICES = [
        ('L', 'Low'),
        ('M', 'Medium'),
        ('H', 'High'),
        ('U', 'Urgent'),
    ]

    id = models.BigAutoField(primary_key=True)  # Explicitly define id field
    uuid = models.UUIDField(default=uuid.uuid4, editable=False, unique=True)
    title = models.CharField(max_length=200)
    description = models.TextField(blank=True, null=True)
    due_date = models.DateTimeField(blank=True, null=True)
    created_at = models.DateTimeField(default=timezone.now)
    updated_at = models.DateTimeField(auto_now=True)
    completed = models.BooleanField(default=False)
    priority = models.CharField(max_length=1, choices=PRIORITY_CHOICES, default='M')
    category = models.ForeignKey(ToDoCategory, on_delete=models.SET_NULL, null=True, blank=True)
    tags = models.ManyToManyField(ToDoTag, blank=True)
    user = models.ForeignKey(User, on_delete=models.CASCADE)
    active=models.BooleanField(default=True)

    class Meta:
        verbose_name = 'To-Do'
        verbose_name_plural = 'To-Dos'
        ordering = ['due_date', 'priority', 'created_at']

    def __str__(self):
        return self.title

serializers.py

from rest_framework import serializers
from .models import ToDo, ToDoCategory, ToDoTag
from rest_framework_bulk import BulkListSerializer,BulkSerializerMixin
from rest_framework_bulk import (
    BulkListSerializer,
    BulkSerializerMixin,
    ListBulkCreateUpdateDestroyAPIView,
)

class ToDoCategorySerializer(serializers.ModelSerializer,BulkSerializerMixin):
    class Meta:
        

        model = ToDoCategory
        fields="__all__"
        list_serializer_class = BulkListSerializer

class ToDoTagSerializer(serializers.ModelSerializer,BulkSerializerMixin):
    class Meta:
        model = ToDoTag
        fields = ['id', 'uuid', 'name', 'color']
        update_lookup_field = 'id'
        list_serializer_class = BulkListSerializer

class ToDoSerializer(serializers.ModelSerializer,BulkSerializerMixin):
    category = ToDoCategorySerializer(read_only=True)
    tags = ToDoTagSerializer(many=True, read_only=True)

    class Meta:
        model = ToDo
        update_lookup_field = 'id'
        fields = ['id', 'uuid', 'title', 'description', 'due_date', 'created_at', 'updated_at', 'completed', 'priority', 'category', 'tags', 'user']
        list_serializer_class = BulkListSerializer

views.py

from rest_framework import viewsets
from .models import ToDo, ToDoCategory, ToDoTag
from .serializers import ToDoSerializer, ToDoCategorySerializer, ToDoTagSerializer
from rest_framework_bulk import (
    BulkListSerializer,
    BulkSerializerMixin,
    ListBulkCreateUpdateDestroyAPIView,
    BulkModelViewSet
)
from rest_framework.permissions import AllowAny  # Import AllowAny

class ToDoCategoryViewSet(BulkModelViewSet):
    model=ToDoCategory
    queryset = ToDoCategory.objects.all()
    serializer_class = ToDoCategorySerializer
     

class ToDoTagViewSet(BulkModelViewSet):
    queryset = ToDoTag.objects.all()
    serializer_class = ToDoTagSerializer
    update_lookup_field = 'id'

class ToDoViewSet(BulkModelViewSet):
    queryset = ToDo.objects.all()
    serializer_class = ToDoSerializer
    update_lookup_field = 'id'

urls.py

from django.urls import path, include
from rest_framework.routers import DefaultRouter
from .views import ToDoCategoryViewSet, ToDoTagViewSet, ToDoViewSet
from rest_framework_bulk.routes import BulkRouter

router = BulkRouter()
router.register(r'todo-categories', ToDoCategoryViewSet)
router.register(r'todo-tags', ToDoTagViewSet)
router.register(r'todos', ToDoViewSet)

urlpatterns = [
    path('', include(router.urls)),
]

[shasan11]

Solved the issue , the model with any unique constraint forbids from Bulkmodelset bulk update, its better to write the bulk update logic on own