Accessing the user's request in a post_save signal

Question

I have done the below post_save signal in my project.

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") 

The operation_by column, I want to get the user_id and store it. Any idea how can do that?

Answer 1

Can't be done. The current user is only available via the request, which is not available when using purely model functionality. Access the user in the view somehow.

Answer 2

I was able to do it by inspecting the stack and looking for the view then looking at the local variables for the view to get the request. It feels like a bit of a hack, but it worked.

import inspect, os  @receiver(post_save, sender=MyModel) def get_user_in_signal(sender, **kwargs):     for entry in reversed(inspect.stack()):         if os.path.dirname(__file__) + '/views.py' == entry[1]:             try:                 user = entry[0].f_locals['request'].user             except:                 user = None             break     if user:         # do stuff with the user variable