Create a new object for the newly registered user - django

Question

I am very new to django, so please bear with me. What I want is whenever a new user is registered I would like to create an About for that user. How will I do that? Please help me. Thank you.
views:
def register(request):
if request.method == 'POST':
form = UserCreationForm(request.POST or None)
if form.is_valid():
form.save()
return HttpResponseRedirect('/')
else:
return render(request, 'register.html', {'form':form})
else:
form = UserCreationForm()
return render(request, 'register.html', {'form':form})
model:
class About(models.Model):
user = models.OneToOneField(User)
gender = models.CharField(max_length=1, choices=GENDER)
dob = models.DateField(null=True, blank=True)
place = models.CharField(max_lenght=100)

Answer 1

If you haven't looked at forms yet, you should read these links:
https://docs.djangoproject.com/en/1.7/topics/forms/
https://docs.djangoproject.com/en/1.7/ref/forms/api/
If you need to see some code to get started,
class UserCreationForm(forms.Form) or (models.Form) '''You should read up on these two'''
#define form attributes here
def clean(self):
'''write your validations here'''
return self.cleaned_data
def save(self)
data = self.cleaned_data
about = About()
about.user = data.get("user")
about.gender = data.get("gender")
about.place = data.get("place")
year = data.get("year")
month = data.get("month")
day = data.get("day")
about.dob = datetime(year, month, day).date()
about.save()
Also Profile or Member would be a more intuitive name of your model than About. Just giving my two cents.
Hope this helps.

Answer 2

If you know you will be creating an About instance for every user, regardless of how they're created (e.g. user input, through the admin, or through the shell) signals can be very helpful.
So in your case:
class About(models.Model):
user = models.OneToOneField(User)
gender = models.CharField(max_length=1, choices=GENDER)
dob = models.DateField(null=True, blank=True)
place = models.CharField(max_lenght=100)
def user_post_save(sender, instance, created, *args, **kwargs):
"""create an about when a new user is created
data:
sender - The model class. (User)
instance - The actual instance being saved.
created - Boolean; True if a new record was created.
*args, **kwargs - Capture the unneeded `raw` and `using`(1.3) arguments.
"""
if created:
About.objects.create(user=instance)
post_save.connect(user_post_save, sender=User)
Now whenever a new User is created, and About will automatically be created for them.

Answer 3

You can override the save method on the UserCreationForm by extending the class to make every time you call save, the About object will be automatically created.
class CustomUserCreationForm(UserCreationForm):
def save(self, commit=True):
instance = super(CustomUserCreationForm, self).save(commit=False)
about = About()
about.user = instance
about.gender = 1
about.place = "Indonesia"
about.save()
return instance
Or, you can use AutoOneToOne field with django-annoying