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POHow to make Django queries retrieve updated information from database?
 

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  1. POHow to make Django queries retrieve updated information from database?
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    <p>For 2 days i have been stucked at transaction problem in my Django project. I'm developing a messenger system and when i send a message to some user, the sent message appears correctly in outbox div (with jQuery/Ajax, not refresh page). Well, If i send another message, the new message which appears in outbox now is the same as previous sent.</p> <p>All messages i send are like the first. In database table the messages are well saved, so i guess problem comes from query.</p> <p>The query is next:</p> <pre><code>@login_required(login_url='/') def getmessage(request, mode=None): if request.is_ajax(): if request.method == "GET": # Retrieve last message sent by user Message.objects.update() q = Message.objects.filter(sender=request.user).order_by('send_at')[:1] response = {} for sent in q: sent_message = {} sent_message['recipient'] = sent.recipient.username print sent.recipient.username sent_message['body'] = sent.body response.update({'sent': sent_message}) # Make json object json = simplejson.dumps(response) # Send answer to client side return HttpResponse(json, mimetype='application/json') else: # No POST request, redirecting return HttpResponseRedirect('/messenger/') else: # No AJAX request, redirecting return HttpResponseRedirect('/messenger/') </code></pre> <p>let's pay attention to line "print sent.recipient.username". This line always print the first message recipient name.</p> <p>I have been reading some threads around stackoverflow talking about this problem, but handling manually the transactions i haven't got any success. Even making "Message.objects.update()" before the query it doesn't work.</p> <p>Any suggestion? It's very annoying to not understand how does it happening.</p> <p>If you need more information like model code or whatever, tell it to me.</p> <p>Thanks!</p>
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    1. USRubén Jiménez
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