Question

我有一个只读的MSSQL数据库，我成功地设法使用django读取。这个数据库的表格都是主键，模型是：

class City(models.Model):
    id = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=20)

class Neighborhood(models.Model):
    id = models.IntegerField(primary_key=True)
    name = models.CharField(max_length=20)

class Person(models.Model):
    id = models.IntegerField(primary_key=True)
    fname = models.CharField(max_length=10)
    mname = models.CharField(max_length=10)
    lname = models.CharField(max_length=10)
    address = models.CharField(max_length=100)
    neighborhood = models.ForeignKey(Neighborhood)
    city = models.ForeignKey(City)
    phone = models.CharField(max_length=20)
    email = models.EmailField()

我希望通过提供Person和/或Neighborhood来过滤City。不幸的是我无法改变表或更改数据库，因为它是只读的。怎么做到呢？谢谢

Answer 1

在django中，您可以通过其外键关系查询Person。我相信这就是你要找的......

yourObject = Person.objects.filter(neighborhood__name="yourName")

Django从主键关系表中过滤数据

1 个答案: