Logging fields

# Old Method
def get_logging_fields(self, model):
    """
    Returns a dictionary mapping of the fields that are used for
    keeping the acutal audit log entries.
    """
    rel_name = '_%s_audit_log_entry'%model._meta.object_name.lower()

    def entry_instance_to_unicode(log_entry):
        try:
            result = u'%s: %s %s at %s'%(model._meta.object_name,
                                            log_entry.object_state,
                                            log_entry.get_action_type_display().lower(),
                                            log_entry.action_date,

                                            )
        except AttributeError:
            result = u'%s %s at %s'%(model._meta.object_name,
                                            log_entry.get_action_type_display().lower(),
                                            log_entry.action_date

                                            )
        return result

    return {
        'action_id' : models.AutoField(primary_key = True),
        'action_date' : models.DateTimeField(default = datetime.datetime.now),
        'action_user' : LastUserField(related_name = rel_name),
        'action_type' : models.CharField(max_length = 1, choices = (
            ('I', _('Created')),
            ('U', _('Changed')),
            ('D', _('Deleted')),
        )),
        'object_state' : LogEntryObjectDescriptor(model),
        '__unicode__' : entry_instance_to_unicode,
    }


# New method
def get_logging_fields(self, model):
    """
    Returns a dictionary mapping of the fields that are used for
    keeping the acutal audit log entries.
    """
    rel_name = '_%s_audit_log_entry'%model._meta.object_name.lower()

    def entry_instance_to_unicode(log_entry):
        try:
            result = u'%s: %s %s at %s'%(model._meta.object_name,
                                            log_entry.object_state,
                                            log_entry.get_action_type_display().lower(),
                                            log_entry.action_date,

                                            )
        except AttributeError:
            result = u'%s %s at %s'%(model._meta.object_name,
                                            log_entry.get_action_type_display().lower(),
                                            log_entry.action_date

                                            )
        return result

    d = datetime.datetime.now()
    if settings.USE_TZ:
        d = timezone.make_aware(d, timezone.get_current_timezone())
    utz = settings.USE_TZ
    return {
        'action_id' : models.AutoField(primary_key = True),
        'action_date' : models.DateTimeField(default = d),
        'action_user' : LastUserField(related_name = rel_name),
        'action_type' : models.CharField(max_length = 1, choices = (
            ('I', _('Created')),
            ('U', _('Changed')),
            ('D', _('Deleted')),
        )),
        'object_state' : LogEntryObjectDescriptor(model),
        '__unicode__' : entry_instance_to_unicode,
    }