在 Django 框架上渲染页面的问题

Question

我有新闻和新闻的类别，但我不知道如何使用属于同一类别的新闻列表来呈现页面。希望你能帮助我。 这是我的 model.py 文件：

from django.db import models

class Category(models.Model):
        class Meta:
                verbose_name_plural = u'Categories'

        category = models.CharField(max_length=255)
        slug = models.CharField(max_length=255)

        def __unicode__(self):
                return self.category

class News(models.Model):

        class Meta:
                verbose_name_plural = u'News'

        title = models.CharField(max_length=255)
        category = models.ForeignKey(u'Category', related_name=u'Category', blank=True, null=True)
        pub_date = models.DateTimeField('date published')
        slug = models.CharField(max_length=255)
        short_content=models.TextField(max_length=2000, blank=True)
        content = models.TextField(max_length=10000)
        image = models.FileField(u'Images', upload_to='media/img/news', blank=True)


        def __unicode__(self):
                return self.title

views.py：

from django.shortcuts import render
from django.views.generic import ListView, DetailView
from news.models import News

class NewsListView(ListView):
        template_name ='news/list.html'
        context_object_name = 'news_list'

    def get_queryset(self):
            return News.objects.order_by('-pub_date') [:5]


class  NewsDetailView(DetailView):
    model=News
    template_name = 'news/detail.html'

def CategoryNews(request, categoryslug):
    category = Category.objects.get(slug=categoryslug)
    news = News.objects.filter(category=category)
    return render (request, 'news/category_news.html', {'category' : category})

urls.py:

django.conf.urls import patterns, url
from news.views import NewsListView, NewsDetailView
from news import views

urlpatterns = patterns('',
        url(r'^$', NewsListView.as_view(), name='list'),
        url(r'^(?P<slug>[-_\w]+)/$', NewsDetailView.as_view()),
        url(r'^kids-garden/$', views.CategoryNews),
)

谢谢！

Answer 1

我认为这应该可以完成工作：

views.py

....
from news.models import News, Category

def CategoryNews(request, categoryslug):
    category_news = News.objects.filter(category__slug='categoryslug')
    return render (request, 'news/category_news.html', {'category_news' : category_news})

Answer 2

在 CategoryNews 视图中添加新闻以呈现上下文。这将使新闻项目在模板中可用。

def CategoryNews(request, categoryslug):
    category = Category.objects.get(slug=categoryslug)
    news = News.objects.filter(category=category)
    return render (request, 'news/category_news.html', {'category' : category, 'newsitems': news})

将命名组添加到类别 url 以使其动态。

重写

url(r'^kids-garden/$', views.CategoryNews, name='category'),

到

url(r'^category/(?P<categoryslug>\w+)/$', views.CategoryNews, name='category'),

在 category_news.html 中

{%for news in newsitems%}

    {{ news.title }}
    {{ news.content }}
    # rest values...........
{% endfor %}