1. Add a "winner" field to your Match
2. Implement a post_save signal for the Match model that updates the "won"
or "lost" fields for each Club in the match (simple if/then logic based on
winner).
PS I think the default values for "won" and "lost" for a Club should be "0"
and not "1".
On Tuesday, 16 April 2019 20:19:34 UTC+2, omar ahmed wrote:
>
> hello ... i have two models "Club" class and "Match" class and it has
> foreign key to Club
> now i want to increment "won" field (or draw or lost) in "Club" class by
> "score_local" and "score_visitor" in "Match" class ..
> how can i do this
> class Club(models.Model):
> name = models.CharField(max_length=100)
> won = models.IntegerField(default=1)
> draw = models.IntegerField(default=1)
> lost = models.IntegerField()
> goal_for = models.IntegerField()
> goal_against = models.IntegerField()
>
>
> class Match(models.Model):
> play_date = models.DateTimeField('play date')
> club_visitor = models.ForeignKey(Club, on_delete=models.CASCADE,
> related_name='match_club_visitor')
> club_local = models.ForeignKey(Club, on_delete=models.CASCADE,
> related_name='match_club_local')
> score_visitor = models.IntegerField()
> score_local = models.IntegerField()
>
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