django add object with the current user - django

Question

I'm trying to create a todoapp with google login to create personal todolist for each users.
here's views.py
from django.contrib.auth.decorators import login_required
#login_required
def todoView(request):
all_todo_items = Todoitem.objects.filter(userid=request.user.id)
return render(request, 'todoapp/home.html', {'all_items': all_todo_items})
def addTodo(request):
add_new_item = Todoitem(content=request.POST['content'])
add_new_item.save()
return HttpResponseRedirect('/home/')
this is my code before without users but when there's currently login user it's throwing this error
null value in column "id" violates not-null constraint / DETAIL: Failing row contains (null, sampletodo,null). I believe the third column which is null is the userid and first column null is auto increment id since I set it to id SERIAL primary key in todoitem table
I'm 100% sure i need to add something #addTodo views.py, I just dont know how to add todolist with the current user
EDIT here's my models.py
class Todoitem(models.Model):
content = models.CharField(max_length=100)
userid = models.ForeignKey(AuthUser, models.DO_NOTHING,
db_column='userid')
class Meta:
managed = False
db_table = 'todoitem'
class AuthUser(models.Model):
password = models.CharField(max_length=128)
last_login = models.DateTimeField(blank=True, null=True)
is_superuser = models.BooleanField()
username = models.CharField(unique=True, max_length=150)
soon...
class Meta:
managed = False
db_table = 'auth_user'

Answer 1

Just pass the current user the same way you did in todoView. The request object has a reference to the current user through request.user. But you need to specify the user object, not user.id
#login_required
def todoView(request):
all_todo_items = Todoitem.objects.filter(userid=request.user) # changed to request.user
return render(request, 'todoapp/home.html', {'all_items': all_todo_items})
def addTodo(request):
add_new_item = Todoitem(content=request.POST['content'], userid=request.user)
add_new_item.save()
return HttpResponseRedirect('/home/')

Answer 2

You should use a good user model to be able to use request.user.
Try a model like this:
from django.contrib.auth.models import AbstractUser
class User(AbstractUser):
password = models.CharField(max_length=128)
last_login = models.DateTimeField(blank=True, null=True)
is_superuser = models.BooleanField()
username = models.CharField(unique=True, max_length=150)
then in your views you can do this
def addTodo(request):
add_new_item = Todoitem(content=request.POST['content'], userid=request.user)
def todoView(request):
all_todo_items = Todoitem.objects.filter(userid=request.user) # changed to request.user
return render(request, 'todoapp/home.html', {'all_items': all_todo_items})