Can we use any other unique column as foreign key in django model?
Yes you can. Column must be unique=True.
To reference this column, specify to_fied attribute on source column. Check below;
class Group (models.Model):
name= models.CharField(max_length=250)
otherid=models.IntegerField(unique=True)
class Member (models.Model):
name=models.CharField(max_length=250)
group=models.ForeignKey(Group,models.CASCADE,to_field='otherid')
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