Dear Django developers
Thank you for creating such an amazing framework!
My problem is the following:
I have created a Custom User model which inherits from AbstractUser. Furthermore I have created a custom user manager which inherits from UserManager.
When trying to register a new user, I get an integrity error stating unique constraint failed for my custom user model’s username. The thing is, I have defined the username field as comp_name. So when I try to register a new user nothing gets saved and I get thrown the Integrity Error
The only user saved in my database is the superuser which has a comp_name of ‘fabian’
Here is my models.py file:
from django.db import models
from django.contrib.auth.models import AbstractUser, UserManager
from django.conf import settings
# Create your models here.
class CustomUserManager(UserManager):
def create_superuser(self, comp_name, email=None, password=None, **extra_fields):
if not comp_name:
raise ValueError("User must have a comp_name")
if not email:
raise ValueError("User must have an email")
if not password:
raise ValueError("User must have a password")
user = self.model(
email=self.normalize_email(email)
)
user.comp_name = comp_name
user.set_password(password)
user.is_admin = True
user.is_staff = True
user.save(using=self._db)
return user
class CustomUser(AbstractUser):
business_choices = (
('Manufacturers', 'Manufacturers'),
('Service Providers', 'Service Providers'),
('Retailers', 'Retailers'),
('Wholesalers', 'Wholesalers'),
)
comp_name = models.CharField(max_length=30, primary_key=True, verbose_name="Company Name", default="test")
reg_no = models.IntegerField(default=123456789, verbose_name="Registration Number")
contact = models.IntegerField(default=12345678, verbose_name="Contact")
website = models.CharField(max_length=20, default="basileia.com", verbose_name="Website")
location = models.CharField(max_length=70, verbose_name="Location")
pic = models.ImageField(null=True, blank=True, verbose_name="Profile Picture")
doi = models.DateField(auto_now=False, blank=True, default="1995-07-21", verbose_name="Date of Incorporation")
type_of_business = models.CharField(max_length=20, choices=business_choices, default='Manufacturers', verbose_name="Type of business")
USERNAME_FIELD = 'comp_name'
objects = CustomUserManager()
@staticmethod
def has_perm(perm, obj=None):
# "Does the user have a specific permission?"
# Simplest possible answer: Yes, always
return True
@staticmethod
def has_module_perms(app_label):
# "Does the user have permissions to view the app `app_label`?"
# Simplest possible answer: Yes, always
return True
def __str__(self):
return self.comp_name
def get_username(self):
return self.comp_name
Here is my admin.py file:
from django.contrib import admin
from dashboard.models import CustomUser
from django.contrib.auth.admin import UserAdmin
from forms import CustomUserCreationForm, CustomUserChangeForm
# Register your models here.
class CustomUserAdmin(UserAdmin):
add_form = CustomUserCreationForm
form = CustomUserChangeForm
model = CustomUser
list_display = ['comp_name', 'reg_no', 'contact', 'email',
'website', 'location', 'doi']
admin.site.register(CustomUser, CustomUserAdmin)
In my settings file I have the AUTH_USER_MODEL set to my custom model in this case 'dashboard.CustomUser'
In my forms.py file:
from django.contrib.auth.forms import AuthenticationForm, UserChangeForm, UserCreationForm
from dashboard.models import CustomUser
class CustomUserCreationForm(UserCreationForm):
class Meta:
model = CustomUser
fields = ['comp_name', 'reg_no', 'email',
'contact', 'doi', 'location', 'website',
'password1', 'password2', 'type_of_business', 'pic']
def save(self, commit=True):
user = super(CustomUserCreationForm, self).save(commit=False)
user.comp_name = self.cleaned_data['comp_name']
user.reg_no = self.cleaned_data['reg_no']
user.email = self.cleaned_data['email']
user.contact = self.cleaned_data['contact']
user.doi = self.cleaned_data['doi']
user.location = self.cleaned_data['location']
user.website = self.cleaned_data['website']
user.type_of_business = self.cleaned_data['type_of_business']
user.pic = self.cleaned_data['pic']
if commit:
user.save()
return user
class CustomUserChangeForm(UserChangeForm):
class Meta:
model = CustomUser
fields = '__all__'
class CustomLoginForm(AuthenticationForm):
pass
In my views.py file:
from django.shortcuts import render, redirect
from django.contrib.auth.views import LoginView
from forms import CustomLoginForm, CustomUserCreationForm
# Create your views here.
class LoginPageView(LoginView):
redirect_authenticated_user = True
authentication_form = CustomLoginForm
template_name = "registration/login.html"
def SignUpPageView(request):
form = CustomUserCreationForm()
if request.method == 'POST':
form = CustomUserCreationForm(request.POST)
if form.is_valid():
form.save()
return redirect('home')
elif not form.is_valid():
print('Form is not valid')
print(form.errors)
context = {'form': form}
return render(request, "registration/signup.html", context)
def DashboardPageView(request):
return render(request, "dashboard/index.html")
def ProfilePageView(request):
return render(request, "dashboard/profilepage.html")
def NotificationsPageView(request):
return render(request, "dashboard/notifications.html")
And finally the full error pasted here:
The above exception was the direct cause of the following exception:
Traceback (most recent call last):
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
response = get_response(request)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
response = wrapped_callback(request, *callback_args, **callback_kwargs)
File "C:\Users\Admin user\PycharmProjects\OfficialGetBusyWebsite\dashboard\views.py", line 21, in SignUpPageView
form.save()
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\contrib\auth\forms.py", line 131, in save
user.save()
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\contrib\auth\base_user.py", line 67, in save
super().save(*args, **kwargs)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\base.py", line 726, in save
self.save_base(using=using, force_insert=force_insert,
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\base.py", line 763, in save_base
updated = self._save_table(
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\base.py", line 868, in _save_table
results = self._do_insert(cls._base_manager, using, fields, returning_fields, raw)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\base.py", line 906, in _do_insert
return manager._insert(
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\manager.py", line 85, in manager_method
return getattr(self.get_queryset(), name)(*args, **kwargs)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\query.py", line 1270, in _insert
return query.get_compiler(using=using).execute_sql(returning_fields)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\models\sql\compiler.py", line 1416, in execute_sql
cursor.execute(sql, params)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\utils.py", line 98, in execute
return super().execute(sql, params)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\utils.py", line 66, in execute
return self._execute_with_wrappers(sql, params, many=False, executor=self._execute)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\utils.py", line 75, in _execute_with_wrappers
return executor(sql, params, many, context)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\utils.py", line 90, in __exit__
raise dj_exc_value.with_traceback(traceback) from exc_value
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\utils.py", line 84, in _execute
return self.cursor.execute(sql, params)
File "C:\ProgramData\Anaconda3\envs\OfficialGetBusyWebsite\lib\site-packages\django\db\backends\sqlite3\base.py", line 423, in execute
return Database.Cursor.execute(self, query, params)
django.db.utils.IntegrityError: UNIQUE constraint failed: dashboard_customuser.username
Thanks in advance for all your help!
and HAPPY NEW YEAR!!!