Question

使用filter（），如何获取当前经过身份验证的用户的外键属性“收件人”？

Models.py：

class Message(models.Model):
    recipient = models.ForeignKey(CustomUser, on_delete = models.CASCADE,related_name = 'recipient',null = True)
    sender = models.ManyToManyField(CustomUser,related_name = 'messages')
    date = models.DateTimeField(auto_now_add=True, blank=True)
    subject = models.CharField(max_length = 1000, blank = True)
    message = models.TextField(blank=True, null=True)
    unread = models.BooleanField(default = True) 

class CustomUser(User):
   user_bio = models.TextField(blank=True, null=True)
   birth_date = models.DateField(null=True, blank=True)
   def __str__(self):
           return self.username

Views.py：

### Inbox list class
class InboxListView(ListView):
'''
This view lets the user view all the messages created in a list
'''
model = Message# [Message,SafeTransaction] # I want to be able to draw from two models/objects #
template_name = "myInbox/inbox.html"
paginate_by = 5

def get_context_data(self, **kwargs):
    context = super(InboxListView, self).get_context_data(**kwargs)
    context['message_list'] = Message.objects.filter(recipient=CustomUser.SOMETHING_idk)#INCORRECT FILTRATION, FIX ASAP!!!!!!!!!!!!!#
    context['now'] = timezone.now()
    context['safeTransaction_list'] = SafeTransaction.objects.all()
    return context

具体来说，这是我需要解决的问题：

context['message_list']=Message.objects.filter(recipient=CustomUser.SOMETHING_idk)

我可以将什么作为特定邮件收件人的过滤器参数？我尝试了类似CustomUser或CustomUser.pk或request.authenticated_as_the_thing_I_want_specific的方法。等。

我似乎对此有点迷茫。

不胜感激。

Answer 1

您似乎已创建了自定义身份验证用户模型？假设设置正确，您应该可以执行以下操作：

def get_context_data(self, **kwargs):
    context = super(InboxListView, self).get_context_data(**kwargs)
    context.update({
        'message_list': Message.objects.filter(recipient=self.request.user),
        'now': timezone.now(),
        'safeTransactionList': SafeTransaction.objects.all(),
    })
    return context

一些其他注意事项：

now作为django模板标记可用。您可以在模板代码中{% now %}。
通过Django ORM的工作方式，您可以在模板代码{% for message in request.user.recipient.all %}或{% for message in request.user.messages.all %}中使用以下内容，而不用在get_context_data中进行ORM调用来迭代{{ 1}}的登录用户。

ForeignKey模型查询过滤器

1 个答案: