Can't call model to Django template - html

Question

I'm trying to call an attribute from my model into my HTML template using Django. There is something strange going on as I am only able to call one of my two models into the template. Both models are working perfectly fine as far as I can tell by looking into my database. This is what my models.py looks like
class Respondez(models.Model):
responder = models.ForeignKey(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, related_name='scores')
score = models.IntegerField(default=0)
post_time = models.DateTimeField(default=timezone.now)
class Meta:
ordering = ['post_time']
def __str__(self):
return self.score
class Profilez(models.Model):
newuser = models.OneToOneField(settings.AUTH_USER_MODEL, on_delete=models.CASCADE, blank=True,null=True)
preference = models.CharField(max_length=30)
def __str__(self):
return self.newuser
I am trying to call Profilez. However, only Respondez can be called. This is the view I'm calling from, which I simplified.
#login_required
def add(request):
p = Profilez()
z = Respondez()
context = {
'p' : p,
'z' : z
}
return render(request, 'rating/add.html', context)
To test whether I can call my models, I have simple header tags in HTML for my template, add.html:
{% extends "rating/base.html" %}
{% block content%}
<h3> {{user.username}} </h3>
<h3> {{ z.post_time }}</h3>
<h3>{{ p.preference }}</h3>
No matter which attribute I call from the models, the line for Respondez works but nothing works for my Profilez model. This is despite the fact that my database has values saved for each attribute from both models.
I am getting inputs for preference from the following view on a separate template (first line won't paste with correct indentation), where users select 1 of 2 choices:
def onboarding2(request):
p = Prof()
p.newuser = request.user
if request.method == 'POST':
selected_opt = (request.POST['ob'])
if selected_opt == 'mood':
p.preference = 'mood'
elif selected_opt == 'productivity':
p.preference = 'productivity'
else:
return HttpResponse(400, 'Invalid form')
p.save()
return redirect('rating-onboarding3')
context = {
'p' : p,
}
return render(request, 'rating/onboard2.html', context)
How can I accurately call my Profilez model? What's wrong here?

Answer 1

Since you have instantiated Profilez with no parameters in the constructor, none of its fields get the initial value. Hence, p.preference also happens to be null. That is why p.preference is not visible in the template.
But, in case of Respondez, though you are still instantiating the object with no parameters, you still have given the default value of current time to z.post_time, so z.post_time is working.
If you want to access p.preference, you need to explicitly assign some value to p.preference, else how will the template show the value for something that doesn't have a value initialized in the first place? For instance, you could do p = Profilez(preference='xyz') while creating the object, and see what happens.
Also, if you want to fetch a specific entry from the database, then you need to do a query, rather than creating a new object. The syntax for creating query would be something like Profilez.objects.get(newuser=some_random_user).