Question

我尝试做的是将人们放在随机组中，但我不希望任何人在一个组中使用相同的名字和姓氏两次，因为那个人很可能在数据库中两次（他们＆＃39 ; d有不同的伙伴）

所以我有这个代码：（我将在djnago admin中将其用作动作）

型号：

class people(models.Model)
   fname = models.CharField()
   lname = models.CharField()
   group = models.IntegerField()
   partner = model.CharField()

查看：

   N = 4
   Num = randint(0, N-1)
   for x in queryset:
       x.group = Num
       (if group == group & fname == fname & lname == lname:)<--Thats the part I am confused about, how can I check to see if these fields are the same, if they are, I want to change the group number field)
           x.group = (Num + 1) % N

Answer 1

考虑使用Unique Together。更改您的模型如下

class people(models.Model)
    fname = models.CharField()
    lname = models.CharField()
    group = models.IntegerField()
    partner = model.CharField()

    class Meta:
        unique_together = ('fname', 'lname', 'group',)

如何检查两个记录在3个特定字段中是否包含相同的信息？

1 个答案: