Overriding the base admin template.

engineering_admin.py

class EngineeringAdmin(AdminSite):
    site_header = "Circulation Engineering Admin"

    def get_urls(self):
        urls = super().get_urls()
        uda_gps_events_urls = [
            url(
                r'uda_gps_events/',
                self.admin_view(
                    self.uda_gps_events_view
                ),
                name='uda_gps_events_view',
            )
        ]
        return urls + uda_gps_events_urls

    def uda_gps_events_view(self, request, **kwargs):

        if request.GET:
            print(request.GET.get('uber_details_actual_id'))
            id = request.GET.get('uber_details_actual_id')
            error = ''
            if id is None:
                error = 'no UDA specified'
            gps_coords = GPSRideCoordinate.query(id)
            if gps_coords:
                if gps_coords._first_iteration:
                    gps_coords.next()
            if not gps_coords._first_iteration:
                gps_coords = gps_coords._items
                return render(request, 'admin/udagpsevents.html', {'gps_coords': gps_coords})
            error = 'Data for this query seems to be mangled 😕'
            return render(request, 'admin/udagpsevents.html', {'error': error})