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Asked: 2026-05-10T15:58:41+00:00

In my Django project I am using Product.objects.all().order_by(‘order’) in a view, but it doesn’t

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In my Django project I am using Product.objects.all().order_by('order') in a view, but it doesn’t seem to be working properly.

This is it’s output:

Product Name Sort Evolution 2 Polarity 1 Jumbulaya 3 Kalidascope 4

It should look like this:

Product Name Sort Polarity 1 Evolution 2 Jumbulaya 3 Kalidascope 4

But it doesn’t. Any ideas?

My view (for that output):

def debug(request):     order = Product.objects.all().order_by('order')     return render_to_response('cms/debug.html', {'order' : order, 'name' : name})

And the view responsible for saving the order field:

def manage_all(request):  if request.method == 'POST':     PostEntries = len(request.POST)     x = 1            while x < PostEntries:         p = Product.objects.get(pk=x)         p.order = int(request.POST.get(str(x),''))         print 'Itr: ' + str(x)         x = x + 1     p.save()     print 'Product Order saved'          return HttpResponse('Saved')

And the model (without the boring bits):

class Product(models.Model):     name = models.CharField(max_length=100)     order = models.IntegerField(blank = True, null = True

Here is a ‘live’ example of the page http://massiveatom.com:8080/debug/ Please note that that is only running on the dev server, so it may not always be up.

I have asked in #django and they didn’t seem to know what was going on. One thought was that the database/Django was being confused by the SQL command it is generating (select * from table where 1 order by 'order'), but I would prefer not to change the order field in the model.

And I know there should be back-ticks surrounding order in the above SQL command, but the syntax parsing thingy kinda hated on it…

Edit: Each object has the correct value, so I don’t really know why it isn’t sorting it properly.

Edit 2: I don’t know what was going on, but it turns out putting p.save() in the loop fixed it all…

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1 Answer

  1. Your saving loop is wrong. You save Product outside of the loop. It should be:

    if request.method == 'POST':     PostEntries = len(request.POST)     x = 1                while x < PostEntries:             p = Product.objects.get(pk=x)             p.order = int(request.POST.get(str(x),''))             print 'Itr: ' + str(x)             x = x + 1             p.save() # NOTE HERE <- saving in loop instead of outside     print 'Product Order saved'                  return HttpResponse('Saved')
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