instance data not loaded in template udpateview fields - django

Question

This is my models:
class User(AbstractUser):
"""Default user for awesomeinventory."""
is_organisor = models.BooleanField(default=True)
is_agent = models.BooleanField(default=False)
is_associatetoCompany = models.BooleanField(default=False)
class UserProfile(models.Model):
user = models.OneToOneField(User, on_delete=models.CASCADE)
company = models.ForeignKey(Company, on_delete=models.CASCADE)
def __str__(self):
return self.user.username
class Agent(models.Model):
FUNCTIONS = Choices(
(1, 'Procurement', _('Procurement')),
(2, 'Request_User', _('Request')),
(3, 'Receptionist', _('Receptionist')),
)
user = models.OneToOneField(User, on_delete=models.CASCADE)
organisation = models.ForeignKey(UserProfile, on_delete=models.CASCADE)
role = models.PositiveSmallIntegerField(
choices=FUNCTIONS,
default=FUNCTIONS.Request_User,
)
def __str__(self):
return self.user.email
Agent form is:
FUNCTIONS = Choices(
(1, 'Procurement', _('Procurement')),
(2, 'Request_User', _('Request')),
(3, 'Receptionist', _('Receptionist')),
)
class AgentModelForm(forms.ModelForm):
role = forms.ChoiceField(choices=FUNCTIONS, widget=forms.Select, label='Role')
class Meta:
model = User
fields = (
'email',
'username',
'first_name',
'last_name',
'role',
)
my views.py:
class AgentUpdateView(OrganisorAndLoginRequiredMixin, UpdateView):
template_name = "agents/agent_update.html"
form_class = AgentModelForm
def get_success_url(self):
return reverse("agents:agent_list")
def get_queryset(self):
return Agent.objects.all()
I'm working on Agent and I've no issue to create an agent, view details of an agent. I'm using crispy form and generic views.
My update view template is:
{% extends "base.html" %}
{% load tailwind_filters %}
{% block content %}
<form form method="post">
{% csrf_token %}
{{ form|crispy }}
<button type="submit" class="w-full text-white bg-blue-500 hover:bg-blue-600 px-3 py-2 rounded-md">Submit</button>
</form>
{% endblock content %}
In this form all fields stay empty except role. When I look at what is loaded in template, I've Agent instance and User is encapsulated is Agent.
I try to add this in my template :
<span class="ml-auto text-gray-900">{{ agent.user.first_name }} {{ agent.user.last_name }}</span>
with the span I can see values of agent.user.
It seems that {{ form|crispy }} is unable to dive in Agent to find User instance linked to this agent.

Answer 1

I changed my way to code and used a def instead:
def AgentUpdateView(request, pk):
obj = Agent.objects.filter(pk=pk).first()
if obj is None:
return render(request, "404.html", {
"Instance": pk
})
else:
form = AgentModelForm(instance=obj.user)
# manage save
if request.method == "POST":
form = AgentModelForm(request.POST, instance=obj.user)
if form.is_valid():
form.save()
# messages.success(request, 'Agent saved') # message for inform user of success - See messages in html file
return HttpResponseRedirect(reverse("agents:agent_list"))
return render(request, 'agents/agent_update.html', { "agent":obj,
"form": form})