基于 Django 类的 View 复合

Question

我正在为一个项目使用 Django 1.3 的基于类的通用 View 。他们真的很好，但我想成为 DRYer。我有一个页面显示我们收到的新闻报道列表，另一个页面显示我们发布的文章列表。在概览页面上，我需要显示两个列表。我想创建一个复合 View ，它接受两个 View 并创建一个附加了两个查询集的上下文。

Answer 1

Kenzic能够通过执行以下操作来完成此操作:

复合 Material .py:

from django.views.generic.base import TemplateResponseMixin, View

class BaseCompositeView(TemplateResponseMixin, View):

    composite_views = []

    def get_composite_views(self):
        return self.composite_views

    def get_context_data(self, request, *args, **kwargs):
        context = {}
        composite_views = self.get_composite_views()
        for composite_view in composite_views:
            cls = composite_view[0]
            try:
                clsview = cls.as_view(**composite_view[1])
            except IndexError:
                clsview = cls.as_view()

            view = clsview(request, *args, **kwargs)
            context_data = view.context_data
            context.update(context_data)

        return context

    def get(self, request, *args, **kwargs):
        context = self.get_context_data(request, *args, **kwargs)
        return self.render_to_response(context)

View .py:

from django.views.generic import TemplateView, ListView, DetailView
from composite import BaseCompositeView
from .models import *


class MediaCoverageList(ListView):
    queryset = MediaCoverageItem.objects.order_by('-date')


class PressKitList(ListView):
    queryset = PressKit.objects.all()


class NewsroomLanding(BaseCompositeView):
    template_name = 'newsroom/landing.html'
    composite_views = [
        (MediaCoverageList,{
            'paginate_by': 10,
        },),
        (PressKitList,)

    ]