Re-using CreateView, UpdateView & friendship

[Mikkel Kromann]

Dear Django users.

I'm testing whether Django is a good choice for a web based application that I need to handle (create, read, update, delete) a lot of data tables.
I've discovered the built-in Class Based View, which are going to save me from a lot of repetitive code lines - yay!

Now, I've got an awful lot of models for my data tables (well, around 20-30 ...) and looking at my code so far, it strikes me that it will quickly become a bit repetitive, which I agree is a bad thing.

From urls.py:

urlpatterns = [
# Urls for truck forms & actions
    path('data/trucks/list/',views.TruckListView.as_view(), name='truck_list'),
    path('data/trucks/create/',views.TruckCreateView.as_view(), name='truck_create'),
    path('data/trucks/update/<pk>/',views.TruckUpdateView.as_view(), name='truck_update'),
    path('data/trucks/delete/<pk>/',views.TruckDeleteView.as_view(), name='truck_delete'),

# Urls for container forms & actions
    path('data/containers/list/',views.ContainersListView.as_view(), name='containers_list'),
    path('data/containers/create/',views.ContainersCreateView.as_view(), name='containers_create'),
    path('data/containers/update/<pk>/',views.ContainersUpdateView.as_view(), name='containers_update'),
    path('data/containers/delete/<pk>/',views.ContainersDeleteView.as_view(), name='containers_delete'),

# Urls for destination forms & actions
# ... guess what will come here ...

]

From views.py

# Create views
class TruckCreateView(CreateView):
    model = Truck
    fields = ['label', 'description', 'max_speed', 'max_weight', 'max_volume' ]

    def get_success_url(self):
        return reverse("truck_list")

class ContainerCreateView(CreateView):
    model = Container
    fields = ['label', 'description', 'max_weight', 'max_volume' ]

    def get_success_url(self):
        return reverse("container_list")

# ... drum-whirl ... what is next? ...

I suppose my task at hand may be a bit unusual, but I aIso think I can't be the first facing this problem.
Basically, I want to do more or less the same with all my models (maybe in 2 or 3 variations). So,

1) did someone perhaps already make a nice package of Class Based Views which can take an Model name as argument, with the model capable of providing the necessary data, e.g. field list?
2) How advisable / possible would it be to take the object name from the url and pass that on to the generic class based view?
3) Did I miss something very obvious? :)


Thanks for your help, Mikkel

[Mikkel Kromann]

Hmmm. It might be my question 3 after all.
After a good night's sleep, I re-read the Figure 8.1 on Function vs Class Based Views in Two Scoops of Django ...

1) No generic view match closely what I have in mind (I think?)
2) I don't think I need to subclass my view
3) I suspect my CBV will need to process a lot of slightly different forms

So, I should make 4 function based views for create, read, update and delete that can handle my many quite similar Models.
Have I understood the difference between FBV and CBV correctly?

thanks, Mikkel

[subhani shaik]

Hi....

can you please share me any django project.for the  practicing purpose .

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Thanks&Regards,
------------------------
Subhani Shaik
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