I'm trying to serialize a model that has a OneToOneField that stores a specific user profile. Since that user profile is used to retrieve the user's instance of that model, I can't remove it from the model, but I think it's causing my problems when I'm trying to serialize and send JSON data. I'm not sure if I explained that well since I'm very new to Django, but hopefully it will be clearer later.
Here is what the model basically looks like:
class ModelName(models.Model):
profile = models.OneToOneField(Profile)
other_field = models.BooleanField(default = True)
etc_field = models.CharField()
...
Here is what my serializer looks like:
class ModelNameSerializer(serializers.ModelSerializer):
class Meta:
model = ModelName
fields = ('other_field', 'etc_field', ...)
When I call the serializer, I do so after a post_save signal is sent. That is to say, I have a receiver that uses the newly saved model instance to serialize the model's data into JSON. Here's what that looks like:
@receiver(post_save, sender=ModelNameForm, dispatch_uid='uniquestring')
def arc_update(sender, instance, **kwargs):
serializer = ModelNameSerializer(instance)
print(serializer.data)
Of course, the print statement in the console is for debugging so that I can test that the signal is being sent, received, and executed properly. However, it prints this:
{'other_field': data, 'etc_field': data, ...}
{}
I know that the empty data set is trying to print the profile data, because when I had kept the profile field in, it was printing this:
{'profile': 1, 'other_field': data, 'etc_field': data, ...}
{'profile': 1}
But I don't know how to get rid of that extra profile print. At first I thought it was being called multiple times, which is what the dispatch_uid was added for, but this didn't fix anything. How do I get rid of that extra serialization of the profile?
Thanks!
UPDATE:
The ModelName instance being sent to the receiver is called in views.py, where the user is filling in a form containing other_field and etc_field and so on and so forth. This is what that looks like:
@login_required
def modelname(request):
user = get_object_or_404(User, username=request.user)
profile, created = Profile.objects.get_or_create(user=user)
modelname, created = ModelName.objects.get_or_create(profile=profile)
context = {}
form = ModelNameForm(request.POST or None, instance=modelname)
context.update({"form": form})
if request.method == 'POST':
if form.is_valid():
form.save() #This is sending the post_save signal
...
return render(request, ...)
Also, as requested, here is the form code!
class ModelNameForm(forms.ModelForm):
class Meta:
model = ModelName
fields = ['other_field', 'etc_field', ...]
