I am trying to create a django project with a custom model that has two diffrent user profiles.it seems to have set a default profile i want to be able to choose one profile from a user

from django.db import models

from django.contrib.auth.models import AbstractUser,UserManager

from django.db.models.signals import post_save

from django.dispatch import receiver

# Create your models here.

class CustomUserManager(UserManager):

pass

class CustomUser(AbstractUser):

pass

class LecProfile(models.Model):

LECTURER = 1

MANAGEMENT = 2

ROLE_CHOICES = (

(LECTURER, 'lecturer'),

(MANAGEMENT, 'management'),

)

role= models.PositiveSmallIntegerField(choices=ROLE_CHOICES,null=True,blank=True)

user = models.OneToOneField(CustomUser,on_delete=models.CASCADE,null=True, related_name='lec_profile')

Employee_no = models.CharField(max_length=100)

Department = models.CharField(max_length=100)

Unit = models.CharField(max_length=100)

lec_image = models.FileField(upload_to='profile_image',blank=True)

def __str__(self):

return self.user.username

@receiver(post_save, sender=CustomUser)

def create_or_update_lec_profile(sender, instance, created, **kwargs):

if created:

LecProfile.objects.create(user=instance)

instance.lec_profile.save()

class UserProfile(models.Model):

STUDENT = 1

STUDENT_REP = 2

ROLE_CHOICES = (

(STUDENT, 'student'),

(STUDENT_REP, 'student_rep'),

)

role= models.PositiveSmallIntegerField(choices=ROLE_CHOICES,null=True,blank=True)

user = models.OneToOneField(CustomUser,on_delete=models.CASCADE,null=True, related_name='user_profile')

reg_no = models.CharField(max_length=100)

year = models.CharField(max_length=100)

course = models.CharField(max_length=100)

your_image = models.FileField(upload_to='profile_image1',blank=True)

def __str__(self):

return self.user.username

@receiver(post_save, sender=CustomUser)

def create_or_update_user_profile(sender, instance, created, **kwargs):

if created:

UserProfile.objects.create(user=instance)

instance.user_profile.save()

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