Clash Royale CLAN TAG#URR8PPP

How to set Model property, toggle a boolean in Django query?

Is it possible in my Detail view below, to set the boolean within a model to be false ?
I looked through the django documentation (queryset) for something like a .set() method for this, it seems to exist but not applicable to this particular case.
How can I toggle the unread boolean in my Models.py, through my view ?

.set()

unread

Models.py

Also, what am I misunderstanding here and what is the better/appropriate way to do this ?

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)


Views.py :

### Message detail class
class MessageInboxDetail(DetailView):
'''
This view lets the user view the details of a message created
'''
context_object_name = 'message_detail'
model = Message
template_name = "myInbox/message_detail.html"

def get_context_data(self, **kwargs):
context = super(MessageInboxDetail, self).get_context_data(**kwargs)
context.update(
'message_detail': Message.unread.set(False) ) # Message(unread=True/False)
return context


context['instance'].unread = False

context['instance'].save()

1 Answer
1

You do not set the field of a model instance with a .set(..) call, but by assigning to the attribute (behind the curtains, Django has patched the __get__ and __set__ functions).

.set(..)

__get__

__set__

We can thus obtain the message object by retrieving it out of the context (with context['message_detail'], and then change it state, and finally save the updated version to the database. For example:

message

context['message_detail']

class MessageInboxDetail(DetailView):
'''
This view lets the user view the details of a message created
'''
context_object_name = 'message_detail'
model = Message
template_name = "myInbox/message_detail.html"

def get_context_data(self, **kwargs):
context = super(MessageInboxDetail, self).get_context_data(**kwargs)
message = context['message_detail']
message.unread = False
message.save()
return context

I however do not know if it is a good idea to mark a message as read in the detail view, it can result in code duplication, which is usually not a good idea.

mark_read

Message

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