Django - Add field to queryset to store computation results

Question

I\'m pretty new to Django and come from the PHP world. I\'m trying to \'add\' a field to a queryset after computing things, and don\'t know how to do it. In PHP I would just add

Answer 1

You can set anything on a python object:

for obj in self.model.objects.all() :
    obj.score = total_score / total_posts

This will work even if obj does not have a score attribute. In the template request it like so:

{{ obj.score }}

Yes, it's that simple. However, if the calculations you're doing can be done in the database, you should look into annotate.

Answer 2

Why not use a dictionary?

newthing = {}
newthing['your_key'] = to_add

In the template, you can access dictionary values with:

{{newthing.your_key}}

Or use the for loop if you have a dictionary of dictionaries