如何使用DetailView编写与Django相关的查询

Question

如何在Django中编写具有其他相关查询的DetailView？

这是我的示例：

class DistributionDetailView(DetailView):
    model = Distribution
    template_name = 'projects/view_distribution.html'

    def get_context_data(self, **kwargs):
        context = super(DistributionDetailView,
                        self).get_context_data(**kwargs)
        context['weekly_attendance'] = WeeklyAttendance.objects.filter(
            distibution_name=Distribution)
        context['sales_data'] = SalesData.objects.filter(
            distibution_name=Distribution)
        context['theatrical_release'] = TheatricalRelease.objects.filter(
            distibution_name=Distribution)
        return context

Answer 1

Distribution是模型类，您不能在filter()使用它。 在get_context_data方法，您可以访问当前对象self.object ，例如：

context['weekly_attendance'] = WeeklyAttendance.objects.filter(
        distibution_name=self.object)

Answer 2

您可以在大多数通用视图中使用self.object访问对象：

class DistributionDetailView(DetailView):
    model = Distribution
    template_name = 'projects/view_distribution.html'

    def get_context_data(self, **kwargs):
        context = super(DistributionDetailView,
                        self).get_context_data(**kwargs)
        context['weekly_attendance'] = WeeklyAttendance.objects.filter(
            distibution=self.object)
        context['sales_data'] = SalesData.objects.filter(
            distibution=self.object)
        context['theatrical_release'] = TheatricalRelease.objects.filter(
            distibution=self.object)
        return context