def get_context_data(self, **kwargs):
    context = super(HourlySongChartView, self).get_context_data(**kwargs)
    context['hour'] = self._get_hour()
    return context
def get_context_data(self, **kwargs):
    context = super(HourlySongChartView, self).get_context_data(**kwargs)
    context['hour'] = self._get_hour()
    return context