That's great - exactly what I needed thanks very much.
The key to it was the views code:
for person in people:
person.calcs = [ 1, 2, 3 ]
I can now assign the calcs reference to a function that returns the
result of the calculation for that row, and this can be accessed as
part of the queryset loop on the template - perfect. Almost seems too
easy not having to physically declare a new field or use a class
library method to append it, like in .NET. But I definitely like it
this way, much easier!
I did try the model manager route again and still had some issues
accessing their values from the template, but adding a field with dot
notation in the view has done the trick anyway.
Thanks again for your help.
Regards,
wubble u
On Mar 12, 3:46 pm, Darren <blogposts.dar...@gmail.com> wrote:
> the simplest method should work, perhaps you made a mistake early on
> which set you off on the wrong path?
>
> class Person(models.Model):
> name = models.CharField(max_length=100)
>
> def view_func(request):
> people = Person.objects.all()
> for person in people:
> person.calcs = [ 1, 2, 3 ]
> return render_to_response('people.html', { 'people':people })
>
> {% for person in people %}
> {{ person.name }}
> {% for c in person.calcs %}
> {{ c }}
> {% endfor %}
> <br>
> {% endfor %}
>
> - is this what you're after?
>
> Darren
>
> On Mar 11, 5:10 pm, wubble u <danmouseonm...@googlemail.com> wrote:
>
> > Hi All,
>
> > I've been passing querysets to templates for looping through rows to
> > create tables / lists on the page... nice and easy... but I need to
> > perform calculations on these rows and pass them with thequerysetso
> > I can loop through and display them along with the data from each row.
>
> > I can't seem to find a way toaddfieldsto thequeryset, so I've
> > tried creating a list of lists/dictionaries manually, and adding the
> > data this way and then passing the list, but not having much luck here
> > either.
>
> > Then I tried tackling it at the model level using managers and model
> > methods, but can't seem to access the data from the template.
>
> > I'm from a .NET background so I'm used to populating datatables and
> > adding columns and moving them around nice and easily, so I guess I'm
> > probably just going about it the wrong way...
>
> > Anyone got any ideas as to the pythonic way of accomplishing this?
>
> > Cheers,
> > wubble u
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