thank you for response , derek
but how can i increment 'win' 'lost' or 'draw' Club fields by 'winner'
Match field
On Wednesday, April 17, 2019 at 3:26:22 PM UTC+2, Derek wrote:
>
> 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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