Django 查询外键对象

Question

有人可以帮我在下面显示的查询集中获取票证对象吗？：

replies = sorted(
    chain(
        SupportTicketReplies.objects.filter(author=request.user, ticket=?!?!)
    ), key=attrgetter('creation_date'), reverse=True
)

目前我不知道如何过滤掉通过外键附加到工单的回复。

我的models.py

class SupportTickets(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False, unique=True)
    ticket_id = models.IntegerField(default=ticket_id_generator, unique=True, blank=False, null=False, editable=False)
    requester = models.ForeignKey(User, on_delete=models.CASCADE, null=False, blank=False)
    category = models.IntegerField(choices=TICKET_CATEGORY, verbose_name='Ticket Category')
    subject = models.CharField(max_length=35)
    problem_description = models.TextField(max_length=2000, blank=False)
    status = models.IntegerField(choices=STATUS_OF_TICKET, verbose_name='Ticket Status', default=2)
    creation_date = models.DateTimeField(auto_now_add=True, blank=False)

class SupportTicketReplies(models.Model):
    id = models.UUIDField(primary_key=True, default=uuid.uuid4, editable=False)
    ticket = ForeignKey(SupportTickets, on_delete=models.CASCADE)
    author = models.ForeignKey(User, on_delete=models.CASCADE, verbose_name='Author', blank=True)
    content = models.TextField(verbose_name="Content", max_length=2000)
    creation_date = models.DateTimeField(auto_now_add=True, blank=False)

提前致谢

Answer 1

首先通过

获得SupportTickets

ticket = SupportTickets.objects.get(ticket_id=ticket_id)

然后把上面的票传给

replies = sorted(
    chain(
        SupportTicketReplies.objects.filter(author=request.user, ticket=ticket)
    ), key=attrgetter('creation_date'), reverse=True
)

Django 查询外键对象

Django query ForeignKey object

python

django

django-queryset