[Answered ]-Django: how to inject data when overriding get_queryset()?

The keyword arguments (kwargs) that the Django URL dispatcher passes to the view comes from the following:

• Captured parameters in the URL expression
• Additional arguments specified in the URL definition

All of them in urls.py.

So, for example, in order to get an ID form the URL in a form: /folder/id/:

url(r'folder/(?P<pk>\d+)/', FolderMediaListView.as_view)

Or if the id is constant (more rarely), you can pass it as an additional argument:

url(r'folder/', FolderMediaListView.as_view, {'pk': 1})

More information on the subject in the Django documentation.