get() got an unexpected keyword argument 'pk'-CodePudding

I am learning how to use django, and I am trying to make some class based views. In this case I have a model named Recurso and I want to get an specific one based on it's id (the primary key).

This is my view:

class Recurso(View):
    model = Recurso
    def get(self, request, recurso_id):
        recurso = get_object_or_404(Recurso, pk=recurso_id)
        etiquetas = recurso.tags.all()
        context = { 'recurso': recurso, 'lista_etiquetas': etiquetas }
        return render(request, 'recurso.html', context)

And this is it's respective url:

path('proveedor/recurso/<int:recurso_id>', Recurso.as_view(), name='recurso'),

This is the Model:

class Recurso(models.Model):
    nombre = models.CharField(max_length=50)
    tags = models.ManyToManyField(Etiqueta)
    proveedor = models.ForeignKey(Proveedor, on_delete=models.CASCADE)
    descripcion = models.CharField(max_length=2000, default='SOME STRING')

    def __str__(self):
        return self.nombre   " de "   self.proveedor.nombre

This is the traceback I get:`

Traceback (most recent call last):
  File "C:\Users\evaho\Envs\stem4Girls\lib\site-packages\django\core\handlers\exception.py", line 47, in inner
    response = get_response(request)
  File "C:\Users\evaho\Envs\stem4Girls\lib\site-packages\django\core\handlers\base.py", line 181, in _get_response
    response = wrapped_callback(request, *callback_args, **callback_kwargs)
  File "C:\Users\evaho\Envs\stem4Girls\lib\site-packages\django\views\generic\base.py", line 70, in view
    return self.dispatch(request, *args, **kwargs)
  File "C:\Users\evaho\Envs\stem4Girls\lib\site-packages\django\views\generic\base.py", line 98, in dispatch
    return handler(request, *args, **kwargs)
  File "C:\Users\evaho\stem4Girls\appSTEM4GIRLS\views.py", line 32, in get
    recurso = get_object_or_404(Recurso, pk=recurso_id)
  File "C:\Users\evaho\Envs\stem4Girls\lib\site-packages\django\shortcuts.py", line 76, in get_object_or_404
    return queryset.get(*args, **kwargs)

Exception Type: TypeError at /proveedor/recurso/6
Exception Value: Recurso.get() got an unexpected keyword argument 'pk'

CodePudding user response：

By naming your view Recurso as well, it will use the view class, not the model class. You can fix this by renaming the view, for example to RecursoView:

class RecursoView(View):
    model = Recurso
    def get(self, request, recurso_id):
        recurso = get_object_or_404(Recurso, pk=recurso_id)
        etiquetas = recurso.tags.all()
        context = { 'recurso': recurso, 'lista_etiquetas': etiquetas }
        return render(request, 'recurso.html', context)

I would strongly advise to always use a …View suffix for your views to prevent clashes with models.