custom-user-model.txt

------------------------------
Add This to models.py
------------------------------

from django.contrib.auth.models import AbstractBaseUser, BaseUserManager
from django.db import models 

class UserManager(BaseUserManager):
    def create_user(self, email, first_name, password=None):
        """
        Creates and saves a user with the given email, first name and password
        """

        if not email:
            raise ValueError("Users must have have a given email and first name")
        user = self.model(
            email = self.normalize_email(email),
            first_name = first_name
        )
        user.set_password(password)
        user.save(using=self._db)
        return user

    def create_superuser(self, email, first_name, password=None):
        """
        Creates and saves a superuser with the given email, first name and password
        """
        user = self.create_user(
            email,
            password = password,
            first_name = first_name
        )
        user.is_admin = True
        user.is_staff = True
        user.is_active = True
        user.is_superuser = True
        user.save(using=self._db)
        return user

class User(AbstractBaseUser):
    # optional fields
    email = models.EmailField(max_length=60, unique=True)
    first_name = models.CharField(max_length=100)

    # compulsory fields
    is_active = models.BooleanField(default=True)
    is_admin = models.BooleanField(default=False)
    is_staff = models.BooleanField(default=False)
    is_superuser = models.BooleanField(default=False)


    USERNAME_FIELD = "email"
    REQUIRED_FIELDS = ["first_name"]

    objects = UserManager()


    def __str__(self):
        return self.email

    #compulsory methods
    def has_perm(self, perm, obj=None):
        return True

    def has_module_perms(self, app_label):
        return True


------------------------------
Add This to 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 as BaseUserAdmin
from django.contrib.auth.forms import ReadOnlyPasswordHashField
from django.core.exceptions import ValidationError

from . models import User


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 = User
        fields = ('email', 'first_name')

    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 and password1 != password2:
            raise ValidationError("Passwords don't match")
        return password2

    def save(self, commit=True):
        # Save the provided password in hashed format
        user = super().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 = User
        fields = ('email', 'password', 'first_name', 'is_active', 'is_admin')

    def clean_password(self):
        # Regardless of what the user provides, return the initial value.
        # This is done here, rather than on the field, because the
        # field does not have access to the initial value
        return self.initial["password"]


class UserAdmin(BaseUserAdmin):
    # The forms to add and change user instances
    form = UserChangeForm
    add_form = UserCreationForm

    # The fields to be used in displaying the User model.  
    # These override the definitions on the base UserAdmin
    # that reference specific fields on auth.User.
    list_display = ('email', 'first_name', 'is_staff','is_admin', 'is_active', 'is_superuser')
    list_filter = ('is_admin',)
    fieldsets = (
        (None, {'fields': ('email', 'password')}),
        ('Personal info', {'fields': ('first_name',)}),
        ('Permissions', {'fields': ('is_staff','is_admin', 'is_active', 'is_superuser')}),
    )
    # 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', 'first_name', 'password1', 'password2'),
        }),
    )
    search_fields = ('email',)
    ordering = ('email',)
    filter_horizontal = ()


# Now register the new UserAdmin...
admin.site.register(User, UserAdmin)
# ... and, since we're not using Django's built-in permissions,
# unregister the Group model from admin.
admin.site.unregister(Group)