Question

所以我有两个模型：

class Business(models.Model):
    def __str__(self):
        return self.name

    name = models.CharField(max_length=200)

class Appointment(models.Model):
    author = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE)
    business = models.ForeignKey(Business, on_delete=models.CASCADE, related_name="appointments")

在我看来，我具有以下背景：

def home(request):
    [...]
    context = {
        'business':Business.objects.order_by('name'),
    }
    [...]

现在，我将使用其子模型“ Appointment”来获得所有企业。

但是我只想要在现有子模型中“填充”完全满足author == request.author

的企业

另外，业务的子模型“约会”应仅是其作者等于request.author的“约会”

Answer 1

我们可以做这样的事情：

business = Business.objects.filter(appointment__author=request.author)

或者：

business = Business.objects.filter(appointment__author__id=request.author.id)

您可能需要阅读：Lookups that span relationships

Django仅在其中一个子对象满足条件的情况下获取对象

1 个答案: