new_contents: # Copyright (c) 2010, Scott Ferguson
  # All rights reserved.
  # 
  # Redistribution and use in source and binary forms, with or without
  # modification, are permitted provided that the following conditions are met:
  #     * Redistributions of source code must retain the above copyright
  #       notice, this list of conditions and the following disclaimer.
  #     * Redistributions in binary form must reproduce the above copyright
  #       notice, this list of conditions and the following disclaimer in the
  #       documentation and/or other materials provided with the distribution.
  #     * Neither the name of the software nor the
  #       names of its contributors may be used to endorse or promote products
  #       derived from this software without specific prior written permission.
  # 
  # THIS SOFTWARE IS PROVIDED BY SCOTT FERGUSON ''AS IS'' AND ANY
  # EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
  # WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
  # DISCLAIMED. IN NO EVENT SHALL SCOTT FERGUSON BE LIABLE FOR ANY
  # DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
  # (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
  # LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
  # ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
  # SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  
  from django.contrib import admin
  
  from models import AndroidDevice 
  
  def registration_id(object):
      return '%s...' % object.registration_id[:24]
  registration_id.short_description = "Registration ID"
  
  class AndroidDeviceAdmin(admin.ModelAdmin):
      list_display = (
          'device_id',
          registration_id,
          'collapse_key',
          'last_messaged',
          'failed_push' 
      )
  
  admin.site.register(AndroidDevice, AndroidDeviceAdmin)
  
subject: Add admin.py file