In the simplified example below, how do I reference the context variable "Elephant" (created in the class Lion) from inside the class Leopard?
I have researched and tried a number of ways, including the last line below which results in a KeyError for "Elephant".
views.py
class Lion(ListView):
def get_context_data(self, **kwargs):
context super().get_context_data()
context[“Elephant”] = Rhinoceros
context["Giraffe"] = Eagle
return context
class Leopard(ListView):
Buffalo = Lion.get_context_data(context[“Elephant”])
One option is to create your own ListView super class:
class AnimalListView(ListView):
def get_context_data(self, *args, **kwargs):
super().get_context_data(*args, **kwargs)
return {
"Elephant": Rhinoceros,
"Giraffe": Eagle,
}
Now your other list views can inherit this instead of inheriting form ListView directly:
class LionList(AnimalListView):
...
class LeopartList(AnimalListView):
...
Alternatively, you can make the class a mixin:
class AnimalContextMixin:
def get_context_data(self, *args, **kwargs):
super().get_context_data(*args, **kwargs)
return {
"Elephant": Rhinoceros,
"Giraffe": Eagle,
}
And then your list views should inherit from both ListView and this mixin:
class LionList(AnimalContextMixin, ListView):
...
class LeopartList(AnimalContextMixin, ListView):
...
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