在Django 1.5中使用通用视图在模板中添加url参数

我正在学习Django，目前我正在一个项目中学习教程

现在我正试图转换为通用视图，这就是我遇到问题的地方：

新闻/模型.py

[...]
class News(models.Model):
  id = models.IntegerField(primary_key=True, editable=False)
  category = models.CharField(max_length=50L)
  title = models.CharField(max_length=200L)
  #rss_summary = models.CharField(max_length=2000L)
  rss_summary = models.TextField(max_length=2000L)
  #body_text = models.CharField(max_length=5000L)
  body_text = models.TextField(max_length=5000L)
  post_date = models.DateTimeField()
  class Meta:
      db_table = 'news'
  def __unicode__(self):
      return self.title

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),
[...]

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),

    url(r'^(?P<id>\d+)/$',
        DetailView.as_view(
            model=News,
            context_object_name='item',
            template_name='news/news_item.html'),
        name='news_detail'),
[...]

新闻/url.py

[...]
class News(models.Model):
  id = models.IntegerField(primary_key=True, editable=False)
  category = models.CharField(max_length=50L)
  title = models.CharField(max_length=200L)
  #rss_summary = models.CharField(max_length=2000L)
  rss_summary = models.TextField(max_length=2000L)
  #body_text = models.CharField(max_length=5000L)
  body_text = models.TextField(max_length=5000L)
  post_date = models.DateTimeField()
  class Meta:
      db_table = 'news'
  def __unicode__(self):
      return self.title

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),
[...]

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),

    url(r'^(?P<id>\d+)/$',
        DetailView.as_view(
            model=News,
            context_object_name='item',
            template_name='news/news_item.html'),
        name='news_detail'),
[...]

news/templates/news/news.html

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_index' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_detail' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

<a href="{% url 'news_index' %}">Back</a>

<h1 class="news">{{item.title}}</h1>
<p>{{ item.body_text }}</p>

[…]
{%用于allnews%中的项目}
[...]
{%endfor%}

现在我的问题是：我想使用

{%url'foo'ID%}

语法，使用ListView或DetailView等通用视图链接到特定的新闻项目（通过ID）。我怎样才能做到这一点？我为ListView声明了一个名称，但我无法确定如何指定

allnews.id

通过上面的代码，我得到了错误

带参数的“news_index”在/news/Reverse处的NoReverseMatch 找不到“（7L，）”和关键字参数“{}”

---

有趣的是，“7L”是最新新闻项目的id…

您使用了错误的详细信息视图。您定义了

news\u index

是一个

ListView

，您需要实现

DetailView

。有关django文档的更多信息，请参阅

url(r'^(?P<id>\d+)/$',
        DetailView.as_view(
            model=News,
            template_name='news/detail.html'),
        name='news_detail'),

url（r'^（？P\d+/$），
DetailView.as\u视图(
模型=新闻，
模板_name='news/detail.html'），
name='news_detail'），

然后在模板中

{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_detail' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

{%用于allnews%}
[...]
{%endfor%}

您应该有两个视图，一个用于列表，另一个用于详细信息，因此当您单击列表页面中的项目链接时，它将带您进入详细信息视图和模板：

新闻/url.py

[...]
class News(models.Model):
  id = models.IntegerField(primary_key=True, editable=False)
  category = models.CharField(max_length=50L)
  title = models.CharField(max_length=200L)
  #rss_summary = models.CharField(max_length=2000L)
  rss_summary = models.TextField(max_length=2000L)
  #body_text = models.CharField(max_length=5000L)
  body_text = models.TextField(max_length=5000L)
  post_date = models.DateTimeField()
  class Meta:
      db_table = 'news'
  def __unicode__(self):
      return self.title

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),
[...]

from django.conf.urls import patterns, url, include
from django.views.generic import DetailView, ListView

from news import views
from news.models import News

urlpatterns = patterns('',
    url(r'^$',
        ListView.as_view(
            queryset=News.objects.order_by('-post_date'),
            context_object_name='allnews',
            template_name='news/news.html'),
        name='news_index'),

    url(r'^(?P<id>\d+)/$',
        DetailView.as_view(
            model=News,
            context_object_name='item',
            template_name='news/news_item.html'),
        name='news_detail'),
[...]

从django.conf.url导入模式、url，包括
从django.views.generic导入详细视图，ListView
从新闻导入视图
从news.models导入新闻
urlpatterns=模式（“”，
url（r'^$'，
ListView.as_视图(
queryset=News.objects.order_by（'-post_date'），
上下文\u对象\u name='allnews'，
模板_name='news/news.html'），
name='news_index'），
url（r'^（？P\d+/$），
DetailView.as\u视图(
模型=新闻，
上下文\u对象\u name='item'，
模板_name='news/news\u item.html'），
name='news_detail'），
[...]

news/templates/news/news.html

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_index' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_detail' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

<a href="{% url 'news_index' %}">Back</a>

<h1 class="news">{{item.title}}</h1>
<p>{{ item.body_text }}</p>

[…]
{%用于allnews%中的项目}
[...]
{%endfor%}

news/templates/news/news\u item.html

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_index' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

[...]
{% for item in allnews %}
  <h1 class="news"><a href="{% url 'news_detail' item.id %}">{{item.title}}</a></h1>
  [...]
{% endfor %}

<a href="{% url 'news_index' %}">Back</a>

<h1 class="news">{{item.title}}</h1>
<p>{{ item.body_text }}</p>

{{item.title}
{{item.body_text}

谢谢，但这不是我的意思：“^$”的URLconf应该引用一个将所有新闻显示为列表的视图。这个列表应该有指向实际新闻的html链接，如“/news/7”。这就是为什么我想使用列表视图来显示新闻“概述”和一条新闻的详细视图。这正好涵盖并解决了我的问题。非常感谢！