old_contents: from django.contrib import admin
  from website.models import Issue, Watcher, Service, UserProfile, Bounty, UserService, XP, Delta
  
  class ServiceAdmin(admin.ModelAdmin):
       list_display=[] 
       for x in Service._meta.get_all_field_names(): 
           list_display.append(str(x))
  
  class BountyAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in Bounty._meta.get_all_field_names(): 
          list_display.append(str(x))
  
  class WatcherAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in Watcher._meta.get_all_field_names(): 
          list_display.append(str(x))
          
  class  XPAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in XP._meta.get_all_field_names(): 
          list_display.append(str(x))
  
  class IssueAdmin(admin.ModelAdmin):
      readonly_fields = ("created","modified")
      
  admin.site.register(Issue, IssueAdmin)
  admin.site.register(UserService)
  
  admin.site.register(Service, ServiceAdmin)
  #admin.site.register(Watcher, WatcherAdmin)
  admin.site.register(UserProfile)
  admin.site.register(Bounty)
  #admin.site.register(XP, XPAdmin)
  
  # admin.site.register(Delta,
  #     list_display = ('user', 'rank', 'price', 'date'),
  # )
  
  
  
new_contents: from django.contrib import admin
  from website.models import Issue, Watcher, Service, UserProfile, Bounty, UserService, XP, Delta
  
  class ServiceAdmin(admin.ModelAdmin):
       list_display=[] 
       for x in Service._meta.get_all_field_names(): 
           list_display.append(str(x))
  
  class BountyAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in Bounty._meta.get_all_field_names(): 
          list_display.append(str(x))
  
  class WatcherAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in Watcher._meta.get_all_field_names(): 
          list_display.append(str(x))
          
  class  XPAdmin(admin.ModelAdmin):
      list_display=[] 
      for x in XP._meta.get_all_field_names(): 
          list_display.append(str(x))
  
  class IssueAdmin(admin.ModelAdmin):
      readonly_fields = ("created","modified")
      
  admin.site.register(Issue, IssueAdmin)
  admin.site.register(UserService)
  
  admin.site.register(Service, ServiceAdmin)
  #admin.site.register(Watcher, WatcherAdmin)
  admin.site.register(UserProfile)
  admin.site.register(Bounty)
  #admin.site.register(XP, XPAdmin)
  
  # admin.site.register(Delta,
  #     list_display = ('user', 'rank', 'price', 'date'),
  # )
  
  from django.contrib.auth.admin import UserAdmin
  from django.contrib.auth.models import User
  
  UserAdmin.list_display = ('email', 'first_name', 'last_name', 'is_active', 'date_joined', 'is_staff')
  
  admin.site.unregister(User)
  admin.site.register(User, UserAdmin)
subject: Add date joined to the user admin list