Why is django throwing a system error? - django

Question

I am building a custom user that uses an email as a username.
When I run the server to create a custom admin, I get this error
class 'user.admin.UserAdmin'>: (admin.E116) The value of
'list_filter[0]' refers to 'is_staff', which does not refer to a
Field.
Here is my code for the admin.py
from django import forms
from django.contrib import admin
from django.contrib.auth.models import Group
from django.contrib.auth.admin import UserAdmin
from django.contrib.auth.forms import ReadOnlyPasswordHashField
from .models import BaseUser
class UserCreationForm(forms.ModelForm):
"""
A form for creating new users. Includes all the required
fields, plus a repeated password.
"""
password1 = forms.CharField(
label='Password',
widget=forms.PasswordInput
)
password2 = forms.CharField(
label='Password confirmation',
widget=forms.PasswordInput
)
class Meta:
model = BaseUser
fields = ('email',)
def clean_password2(self):
#Check that the two password entries match
password1 = self.cleaned_data.get('password1')
password2 = self.cleaned_data.get('password2')
if password1 and password2 != password2:
raise forms.ValidationError('Password do not match')
return password2
def save(self, commit=True):
user = super(UserCreationForm, self).save(commit=False)
user.set_password(self.cleaned_data['password1'])
if commit:
user.save()
return user
class UserChangeForm(forms.ModelForm):
"""
A form for updating users. Includes all the fields on
the user, but replaces the password field with admin's
password hash display field.
"""
password = ReadOnlyPasswordHashField()
class Meta:
model = BaseUser
fields = (
'email',
'password',
'user_first_name',
'user_last_name',
'user_mobile',
'is_a_student',
)
def clean_password(self):
return self.initial["password"]
class UserAdmin(UserAdmin):
#Forms to add and change user instances
form = UserChangeForm
add_form = UserCreationForm
#The fields to be used in displaying User model.
#These overried the definitions on the base UserAdmin
#That reference specific fields on auth.User
list_display = (
'email',
)
list_filter = ('is_staff',)
fieldsets = (
(None, {'fields': ('email', 'password')}),
('Personal info', {'fields': (
'user_first_name',
'user_last_name',
'user_mobile',
)}),
('Permission', {'fields': (
'is_a_student',
)})
)
# add_fieldsets is not a standard ModelAdmin attribute. UserAdmin
# overrides get_fieldsets to use this attribute when creating a user.
add_fieldsets = (
(None, {
'classes': ('wide',),
'fields': (
'email',
'password1',
'password2',
'user_first_name',
'user_last_name',
'user_mobile',
'is_a_student',
)}
),
)
search_fields = ('email',)
ordering = ('email',)
filter_horizontal = ()
#Register the new UserAdmin
admin.site.register(BaseUser, UserAdmin)
admin.site.unregister(Group)
Here is the models.py
from django.db import models
from django.core.validators import RegexValidator
from django.core.urlresolvers import reverse
from django.utils import timezone
from django.core.mail import send_mail
from django.utils.http import urlquote
from django.utils.translation import ugettext_lazy as _
from django.core.mail import send_mail
from django.core.files.storage import FileSystemStorage
from django.contrib.auth.models import (
BaseUserManager, AbstractBaseUser, PermissionsMixin
)
class MyUserManager(BaseUserManager):
def create_user(self, email, password=None):
"""
Creates and saves a User with the given email and password
"""
if not email:
raise ValueError('Users must have an email address')
user = self.model(email=self.normalize_email(email))
user.set_password(password)
user.save(using=self._db)
return user
def create_superuser(self, email, password):
"""
Creates and saves a superuser with the given email and password
"""
user = self.create_user(
email=email,
password=password,
)
user.is_superuser = user.is_staff = True
user.save(using=self._db)
return user
class BaseUser(AbstractBaseUser, PermissionsMixin):
email = models.EmailField(
verbose_name='email',
max_length=255,
unique=True,
)
user_first_name = models.CharField(max_length=30)
user_last_name = models.CharField(max_length=50)
mobile_regex = RegexValidator(regex=r'^\+?1\d{9,15}$', message="Please enter a max of 10 digits :)")
user_mobile = models.CharField(validators=[mobile_regex], blank=True, max_length=10)
is_a_student = models.BooleanField(default=False)
is_staff = models.BooleanField(default=False)
is_active = models.BooleanField(default=True)
date_joined = models.DateTimeField(auto_now_add=True)
objects = MyUserManager()
USERNAME_FIELD = 'email'
REQUIRED_FIELDS = []
class Meta:
verbose_name = 'User'
verbose_name_plural = 'Users'
def get_full_name(self):
return self.email
def get_short_name(self):
return self.email
def __str__(self):
return self.email
def has_perm(self, perm, obj=None):
"""
Does the user have a specific permission?
"""
return True
def is_student(self):
return self.is_a_student
#property
def is_staff(self):
"""
Is the user a member of staff?
"""
return self.is_staff
def emai_user(self, subject, message, from_email=None):
send_mail(subject, message, from_email, [self.email])
Options done
- I already took out all of the is_staff attribute in admin.py and still got an error.
- Refactored it many times to check if the problem is in different areas of my code.
At this point I am stuck. Could someone please help debug this?

Answer 1

#list_filter = ('is_staff',)
list_filter = ('is_admin',)

Answer 2

You have to add this line which will filter your data in django-admin I had the same issue I resloved it by doing this in my admin.py file or for more brief information you can check out this wonderful tutorial:
Custom Django User Admin
`list_filter = ('admin', 'staff', or anything which you want to add in filter list)`

Answer 3

#property
def is_staff(self):
"""
Is the user a member of staff?
"""
return self.is_staff
The above code creates a recursive execution which caused the error.
#property
def is_admin(self):
"""
Is the user a member of staff?
"""
return self.is_staff

Answer 4

As Django "talks" about field i would check the model in a first review
i couldn't find any password or password1 nor password2 field in the model for example.