ForeignKey模型查询过滤器

Question

Using filter(), how do I get the foreign key property 'recipient' of the current authenticated user ?

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

Specifically this line is what I need puzzled out :

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

What can I put as the filter parameter for a specific message recipient ? I tried something along the lines of CustomUser or CustomUser.pk, or request.authenticated_as_the_thing_I_want_specifically. etcetera.

I seem to be a bit lost with it.

any help at all is appreciated.

Answer 1

It looks like you've created a custom auth user model? Assuming that's been setup correctly you should be able to do the following:

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

Some additional things of note:

• now is available as a django template tag. You can {% now %} in your template code.
• With the way the Django ORM works you would be able to use the following in your template code {% for message in request.user.recipient.all %} or {% for message in request.user.messages.all %} instead of making the ORM call in get_context_data to iterate over message_list for the logged in user.