Generating and storing unique ID using uuid in Django

Question

I am trying to generate a unique user ID using python's uuid and then store it in my mysql database. I am confused as to when I should generate the ID.

This is my forms.py :

from django import forms
from django.contrib.auth.models import models
from django.contrib.auth.models import User
from django.contrib.auth.forms import UserCreationForm
import uuid

class RegistrationForm(UserCreationForm):
    email = models.EmailField(required=True)
    user_id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

    class meta:
        model = User
        fields = (
            'first_name',
            'last_name',
            'email',
            'password1',
            'password2'
        )

def save(self, commit=True):
    user = super(RegistrationForm, self).save(commit=False)
    user.first_name = self.cleaned_data['first_name']
    user.last_name = self.cleaned_data['last_name']
    user.email = self.cleaned_data['email']
    user.user_id = uuid.uuid4()

    if commit:
        user.save()

    return user

This is the registration portion of my views.py

def register(request):
    if request.method == 'POST':
        form = RegistrationForm(request.POST)
        if form.is_valid():
            form.save
            return redirect('/account')

        else:
            form = RegistrationForm()

            args = {'form':form}
            return render(request, 'accounts/registration.html', args)

Answer 1

First, what you are trying to do is Extending core User model . You must choose one of two ways to do it. I would recommend creating one-to-one model with all necessary additional fields, such as your uuid ID.

Second, the code

user_id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)

is for describing a field in models.py (not in forms). If you put it here you don't have to think about generating id, you have already set a callable uuid4 for it. Read more at docs .