Required "owner_id" field is empty in the Database - django

Question

I am trying to save the owner_id that is the same as the Logged In user/Authenticated user. But after I save the AddressBook form,the database saves the owner id with 'Null' value. Can someone help me knowing where am I going wrong.
models.py
class UserProfile(models.Model):
user = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name="profile")
mobiles = models.ManyToManyField(Product, blank=True)
class AddressBook(models.Model):
name = models.CharField(max_length=50)
owner = models.ForeignKey(UserProfile, on_delete=models.SET_NULL, null=True)
phone_regex = RegexValidator(regex=r'^\+?1?\d{9,15}$', message="Phone number must be entered in the format: '[phone]'. Up to 15 digits allowed.")
phone_number = models.CharField(validators=[phone_regex], max_length=17) # validators should be a list
line1 = models.CharField(max_length=100)
line2 = models.CharField(max_length=100, blank=True)
city = models.CharField(max_length=25)
state = models.CharField(max_length=25)
postcode = models.CharField(max_length=8)
country = models.CharField(max_length=25)
views.py
#login_required
def address(request):
existing_order = get_user_pending_order(request)
form = AddressBookForm()
context = {
'addressbook': AddressBook.objects.all(),
'form' : form,
'order' : existing_order,
}
return render(request, 'cart/user_address.html', context)
#login_required
def process_payment(request, order_id):
if request.method == 'POST':
form = AddressBookForm(request.POST)
if form.is_valid():
form.save()
return redirect (reverse('update-records', kwargs={'order_id': order_id}))
forms.py
from django import forms
from .models import AddressBook
class AddressBookForm(forms.ModelForm):
ADDRESS_TYPE = (
('Home', 'Home'),
('Work', 'Work'),
)
address_type = forms.ChoiceField(choices=ADDRESS_TYPE, widget=forms.RadioSelect)
class Meta:
model = AddressBook
fields = ['name', 'phone_number', 'line1', 'line2', 'city', 'state', 'postcode', 'country','address_type']
Database

Answer 1

You can save the form with commit=False, set the owner, and then save to the database:
if request.method == 'POST':
form = AddressBookForm(request.POST)
if form.is_valid():
address = form.save(commit=False)
address.owner = request.user.profile
address.save()