Best way to export data from Django?

Hi all,

I'm new to Django, but really enjoying using it so far!

What I'm trying to do is to export data from an admin interface, when a record is created or updated. I'm calling another web service to tell it the data on site [A] has changed, by using signals.

e.g.

@receiver(post_save, sender=Poll)
def notify_central_hub(sender, instance, created, **kwargs):
if created:

#make a string to hold the url of the request
url = "http://www.example.com/webservice"

#place POST data in a dictionary
post_data_dictionary = kwargs

#encode the POST data to be sent in a URL
post_data_encoded = urllib.urlencode(post_data_dictionary)

#make a request object to hold the POST data and the URL
request_object = urllib2.Request(url, post_data_encoded)

#make the request using the request object as an argument, store response in a variable
response = urllib2.urlopen(request_object)


I'm able to export the data this way, but I can't get the attributes of the full model as I would as if I was using the Django shell. Particularly important is the ID of an object, because without that I won't know which ID to update on the remote web service. That's why I'm only dealing with "created" objects for now.

Could someone please advise me whether I'm going about this the right way, or if there is actually a better way of doing this? I looked into Django middleware but this appears to be more for changing the output at the view layer, not the data layer. But if there is a better way of doing this, I'd be keen to find out!

Many thanks,

Tom

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