Django - Can I use one UpdateView to update fields on separate pages?

Question

Let's say I have a Student model, with name and age fields, and I have a page with a DetailView class showing these fields. Let's say that rather than having one "update" button that will take me to a form to update all fields of my model at once, I want a separate button for each field that takes me to a separate page with a form to update it.

I know how I could do this with a separate HTML file and separate UpdateView class for each field, but it seems like there should be a cleaner way.

In the first HTML file I have two buttons:

<a href="{% url 'update_name' pk=student.pk%}">Update name</a>
<a href="{% url 'update_age' pk=student.pk%}">Update age</a>

In the second I have the form:

<form method="post">
  {% csrf_token %}
  {{ form.as_p }}
  <input type="submit" value="Submit">
</form>

Urls:

urlpatterns = [
    path('<int:pk', views.StudentDetailView.as_view(), name="detail"),
    path('update_name/<int:pk>', views.StudentUpdateView.as_view(), name="update_name"),
    path('update_age/<int:pk>', views.StudentUpdateView.as_view(), name="update_age"),
]

Views:

class StudentUpdateView(UpdateView):
    model = models.Student
    template_name = 'update_student.html'

I suppose I'm looking for some sort of if statement that I can put in my view, like:

if condition:
    fields = ("name",)
elif condition2:
    fields = ("age",)

Hopefully this makes sense! Thank you for any help :)

Answer 1

The simplest way to do this is to override the fields in your urls.py file.

urlpatterns = [
    path('<int:pk', views.StudentDetailView.as_view(), name="detail"),
    path('update_name/<int:pk>', views.StudentUpdateView.as_view(fields=['name']), name="update_name"),
    path('update_age/<int:pk>', views.StudentUpdateView.as_view(fields=['age']), name="update_age"),
]

View.as_view accepts keyword arguments, which are used to override the classes attributes for that occurrence.