title: Accessing the user's request in a post_save signal
body: <p>I have done the below post_save signal in my project. </p>
  
  <pre><code>from django.db.models.signals import post_save
  from django.contrib.auth.models import User
  
  # CORE - SIGNALS
  # Core Signals will operate based on post
  
  def after_save_handler_attr_audit_obj(sender, **kwargs):
      print User.get_profile()
  
      if hasattr(kwargs['instance'], 'audit_obj'):
          if kwargs['created']:
              kwargs['instance'].audit_obj.create(operation="INSERT", operation_by=**USER.ID**).save()
          else:
              kwargs['instance'].audit_obj.create(operation="UPDATE").save()
  
  
  # Connect the handler with the post save signal - Django 1.2
  post_save.connect(after_save_handler_attr_audit_obj, dispatch_uid="core.models.audit.new")
  </code></pre>
  
  <p>The operation_by column, I want to get the user_id and store it. Any idea how can do that?</p>