text: from django.contrib import admin
  from django.contrib.auth.admin import UserAdmin as BaseUserAdmin
  from django.contrib.auth.models import User
  from core.models import Employee
  # Define an inline admin descriptor for Employee model
  # which acts a bit like a singleton
  class EmployeeInline(admin.StackedInline):
  	model = Employee
  	can_delete = False
  	verbose_name_plural = 'employee'
  	# Define a new User admin
  class UserAdmin(BaseUserAdmin):
  	inlines = (EmployeeInline,)
  	# Re-register UserAdmin
  admin.site.unregister(User)
  admin.site.register(User, UserAdmin)
  