text: """Integrate with admin module."""
  
  from django.contrib import admin
  from django.contrib.auth.admin import UserAdmin as DjangoUserAdmin
  from django.utils.translation import ugettext_lazy as _
  
  from .models import User, Profile
  
  
  admin.site.register(Profile)
  
  @admin.register(User)
  class UserAdmin(DjangoUserAdmin):
      """Define admin model for custom User model with no email field."""
  
      fieldsets = (
          (None, {'fields': ('email', 'password')}),
          (_('Personal info'), {'fields': ('first_name', 'last_name')}),
          (_('Permissions'), {'fields': ('is_active', 'is_staff', 'is_superuser',
                                         'groups', 'user_permissions')}),
          (_('Important dates'), {'fields': ('last_login', 'date_joined')}),
      )
      add_fieldsets = (
          (None, {
              'classes': ('wide',),
              'fields': ('email', 'password1', 'password2'),
          }),
      )
      list_display = ('email', 'first_name', 'last_name', 'is_staff')
      search_fields = ('email', 'first_name', 'last_name')
      ordering = ('email',)
  
  
  