python - Django - 在查询中加入 2 个模型

Question

class Person(models.Model):
    name = models.CharField(max_length=20)
    employer = models.CharField(max_length=20)

class Phone(models.Model):
    person = models.ForeignKey(Person)
    number = models.CharField(max_length=10)
    vendor = models.CharField(max_length=20)

如何编写查询来检索 Phone.number = 945678987 和 Person.employer = 'xyz' 的所有 Phone 对象？

Answer 1

"Lookups that span relationships"

Phone.objects.filter(number=u'945678987', person__employer=u'xyz')