I am learning Django by working on a baseball stats tracking
application. In it, I have a Team model, like this:
class Team(models.Model):
name = models.CharField(maxlength=200)
Teams participate in games (in a Game model), either as the home team
or the visiting team. I have a method in the Team model which
calculates the team's record (wins/losses/ties). I want to have show
(and sort by) the team's "winning percentage" (one point per win, 0.5
points per tie, 0 points for a loss - divided by the number of games
played). I have a win_percentage() method defined for the model, but
I'm at a loss for how to sort by it for views/templates.
Since the method doesn't correspond to a column in a table, the
order_by() method doesn't work. I want to show all teams by descending
winning percentage in a "standings" view, but I'm not sure what way to
best accomplish this. I have ideas in my head about iterating over the
Team.objects.all() and creating some kind of dict with that information
in it, but that seems a little counter-intuitive.
Has anyone solved this in the past, or is there someplace in the
documentation which might help?
H.B.
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