title: Extending new user form, in the admin Django
body: <p>I have added an extra field for the User by doing the whole process where making User Profile app and extending the User module. </p>
  
  <p>It doesn't seem to error. 
  What I cant figure out, or find anywhere is how to show this new field in the page where an admin creates a new user. So under personal information such as First name and last Name I want there to be Location field that I added to User Profile.</p>
  
  <p>my User Profile:</p>
  
  <pre><code>from django.db import models
  from django.contrib.auth.models import User
  from django.db.models.signals import post_save
  
  class UserProfile(models.Model):
      # This field is required.
      user = models.OneToOneField(User)
  
      # Other fields here
      location = models.CharField(max_length=20)
  
  # definition of UserProfile from above
  # ...
  
  def create_user_profile(sender, instance, created, **kwargs):
      if created:
          UserProfile.objects.create(user=instance)
  
  post_save.connect(create_user_profile, sender=User)
  </code></pre>
  
  <p>also I would like to know how to make the email mandatory, like password and username. Just changing the user model in the Django folder to:</p>
  
  <pre><code> email = models.EmailField(_('e-mail address'), unique=True)
  </code></pre>
  
  <p>didn't work at all.</p>
  
  <p><strong>[UPDATE]</strong>
  So this is my admin.py hat I created.
  Where should i include this in the settings.py file so that it would actually use the folder with the added user module and the new form?
  I have this line but it doesnt seem to use the new form at all 
  AUTH_PROFILE_MODULE = 'UserProfile.UserProfile'
  (i have a folder called UserProfile which contains the two snipets of code)</p>
  
  <pre><code>from django.contrib import admin
  from django.contrib.auth.models import User,Group
  from django.contrib.auth.admin import UserAdmin
  from django.contrib.auth.forms import UserCreationForm, UserChangeForm
  from django import forms
  from django.contrib.admin.views.main import *
  
  class MyUserCreationForm(UserCreationForm):
      """
      A form that creates a user, with no privileges, from the given username and password.
      """
      OFFICES = (
          (0, "Global"),
          (1, "Dublin"),
          (2, "Tokyo"),
          (3, "Warsaw"),
          (4, "Beijing"),
          (5, "Seoul"),
          (6, "Taipei"),
          (7, "Orem"),
          (8, "Mountain View"),
          (9, "San Luis Obispo"),
          (10, "Roseville"),
          (11, "Pune"),
          (12, "i18n")
      )
      username = forms.RegexField(label=_("Username"), max_length=30, regex=r'^[\w.@+-]+$',
          help_text = _("Required. 30 characters or fewer. Letters, digits and @/./+/-/_ only."),
          error_messages = {'invalid': _("This value may contain only letters, numbers and @/./+/-/_ characters.")})
      password1 = forms.CharField(label=_("Password"), widget=forms.PasswordInput)
      password2 = forms.CharField(label=_("Password confirmation"), widget=forms.PasswordInput,
          help_text = _("Enter the same password as above, for verification."))
      location = forms.IntegerField(label=_("Location"), choices=TYPE_CHOICES)
  
      class Meta:
          model = User
          fields = ("username",)
  
      def clean_username(self):
          username = self.cleaned_data["username"]
          try:
              User.objects.get(username=username)
          except User.DoesNotExist:
              return username
          raise forms.ValidationError(_("A user with that username already exists."))
  
      def clean_password2(self):
          password1 = self.cleaned_data.get("password1", "")
          password2 = self.cleaned_data["password2"]
          if password1 != password2:
              raise forms.ValidationError(_("The two password fields didn't 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 CustomUserAdmin(UserAdmin):
      add_form = MyUserCreationForm
      inlines = [ProfileInline,]
      add_fieldsets = (
          (None, {
              'classes': ('wide',),
              'fields': ('username', 'email', 'password1', 'password2', 'location')}
          ),
      )
  
  
  admin.site.unregister(User)
  admin.site.register(User, CustomUserAdmin)
  admin.site.register(Class, ClassAdmin)
  </code></pre>