Python Tango with Django:URLconf在Tango_with_Django_project.url中定义。找不到页面_Python_Django_Tango_Urlconf

Python Tango with Django:URLconf在Tango_with_Django_project.url中定义。找不到页面

python django

Python Tango with Django:URLconf在Tango_with_Django_project.url中定义。找不到页面,python,django,tango,urlconf,Python,Django,Tango,Urlconf,几天前开始学习Django，偶然发现这本书《与Django的探戈》，并开始学习。但我被困在这里了..可能是模式匹配的愚蠢错误。。单击某个类别时，应显示相关的类别页面但显示了以下错误： /url.py from django.conf.urls import url from django.contrib import admin from django.conf.urls import url,include from rango import views from django.con

几天前开始学习Django，偶然发现这本书《与Django的探戈》，并开始学习。但我被困在这里了..可能是模式匹配的愚蠢错误。。单击某个类别时，应显示相关的类别页面但显示了以下错误：

/url.py

from django.conf.urls import url
from django.contrib import admin


from django.conf.urls import url,include
from rango import views
from django.conf.urls.static import static



urlpatterns = [
    url(r'^admin/', admin.site.urls),
    url(r'^rango/', include('rango.urls')),

]

rango/url.py

from django.conf.urls import url
from rango import views
urlpatterns = [
url(r'^$', views.index, name='index'),
url(r'^about/', views.about, name='about'),
url(r'^add_category/$', views.add_category, name='add_category'),
url(r'^category/(?P<category_name_slug>[\w\-]+)/', views.show_category, name='show_category'),
url(r'^category/(?P<category_name_slug>[\w\-]+)/add_page/', views.add_page, name='add_page'),
]

索引视图

   def index(request):
    context = RequestContext(request)

    category_list = Category.objects.order_by('-likes')[:5]
    page_list = Page.objects.all()

    context_dict = {'categories':category_list, 'pages': page_list}

    for category in category_list:
        category.url = category.name.replace(' ', '_')

    return render_to_response('rango/index.html', context_dict, context)

models.py

from django.db import models
from django.template.defaultfilters import slugify


class Category(models.Model):
    name = models.CharField(max_length=128, unique=True)
    views = models.IntegerField(default=0)
    likes = models.IntegerField(default=0)
    slug = models.SlugField(unique=True)

    def save(self, *args, **kwargs):
        self.slug = slugify(self.name)
        super(Category, self).save(*args, **kwargs)

    class Meta:
        verbose_name_plural = 'Categories'

    def __unicode__(self):
        return self.name

    def __str__(self):
        return self.name
class Page(models.Model):
    category = models.ForeignKey(Category)
    title = models.CharField(max_length=128)
    url = models.URLField()
    views = models.IntegerField(default=0)
    def __unicode__(self):
        return self.title

    def __str__(self):
        return self.title

category.html

<!DOCTYPE html>
 <html>
 <head>
 <title>Rango</title>
 </head>
 <body>
 <div>
 {% if category %}
 <h1>{{ category.name }}</h1>
 {% if pages %}
 <ul>
 {% for page in pages %}
 <li><a href="{{ page.url }}">{{ page.title }}</a></li>
 {% endfor %}
 </ul>
   <strong>Would you like to add more </strong>
            <a href="{% url 'add_page' category.slug %}">pages</a>
            <strong>?</strong>
 {% else %}
 <strong>No pages currently in category.</strong>
 {% endif %}
 {% else %}
 The specified category does not exist!
 {% endif %}
 </div>
 </body>
 </html>


兰戈
{%if类别%}
{{category.name}
{%if页面%}

{第%页中的第%页}

{%endfor%}

是否要添加更多内容
？
{%else%}
当前类别中没有页面。
{%endif%}
{%else%}
指定的类别不存在！
{%endif%}

index.html

<!DOCTYPE html>
{% load staticfiles %}
<html>
<head>
<title>Rango</title>
</head>
<body>
<h1>Rango says...hello world!</h1>
<h2>Most viewed Categories!</h2>
{% if categories %}
<ul>
{% for category in categories %}
<li><a href="/rango/category/{{ category.slug }}">{{ category.name }}</a></li>
{% endfor %}
</ul>
{% else %}
<strong>There are no categories present.</strong>
{% endif %}
<a href="/rango/add_category/">Add a New Category</a>

<h2>Most Viewed Pages!</h2>
{% if pages %}
<ul>
    {% for page in pages %}
    <li><a href="/rango/category/{{ category.url }}/{{ page.url }}">{{ page.title }}</a> </li>
    {% endfor %}
</ul>
{% else %}
<strong>There are no pages present!</strong>
{% endif %}
<a href="/rango/about/">About</a><br />
<img src="{% static 'rango.jpg' %}" alt="Picture of Rango" />
</body>
</html>


{%load staticfiles%}
兰戈
兰戈说…你好，世界！
浏览次数最多的类别！
{%if类别%}

{categories%%中的类别为%s}

{%endfor%}

{%else%}
不存在任何类别。
{%endif%}
浏览次数最多的网页！
{%if页面%}

{第%页中的第%页}

{%endfor%}

{%else%}
没有页面
{%endif%}

在
index.html
中更改此行

<a href="/rango/category/{{ category.slug }}">{{ category.name }}</a></li>

对,

您是否试图查看
http://127.0.0.1:8000/rango/category/name
page？请发布错误消息的文本，而不是屏幕截图。也试着给出一个，而不是你的全部代码。对不起，我是StackOverflow的新手！忘了提一下，我的索引页显示了前5个类别的列表。当我单击一个类别时，我应该会看到与该类别对应的页面列表。你能发布索引页的视图吗？当然。这里你看到了初始页现在给出了错误。它说NoReverseMatch at/rango/Reverse代表“show_category”，带有参数（“”，）“没有找到。尝试了1个模式：[“rango/category/（？P[\\w\\-]+）/$”]仍然存在类似错误：找不到具有关键字参数“{category\u name\u slug'：”}”的“show\u category”的/rango/Reverse的NoReverseMatch。尝试了1个模式：['rango/category/（？P[\\w\\\-]+）/$]
<a href="/rango/category/{{ category.slug }}">{{ category.name }}</a></li>

<a href="{% url 'show_category' category_name_slug=category.slug %}">{{ category.name }}</a></li>