How can I handle errors in Django generic views?

How can I handle errors in Django generic views?

You can handle errors in Django generic views by overriding the get_context_data method to add error handling logic.

Can you give me an example of how to do that?

Sure! You can check for specific conditions and add error messages to the context like this:

class MyView(ListView):
    model = MyModel

    def get_context_data(self, **kwargs):
        context = super().get_context_data(**kwargs)
        if not context['object_list']:
            context['error'] = 'No items found.'
        return context

What if I want to handle 404 errors specifically?

You can override the get_object method to raise a Http404 exception if the object is not found. Here's an example:

from django.http import Http404

class MyDetailView(DetailView):
    model = MyModel

    def get_object(self, queryset=None):
        obj = super().get_object(queryset)
        if not obj:
            raise Http404('Item not found')
        return obj