对象不可逆 Django 是什么意思 [英] What does it mean by object not reversible Django
问题描述
我只是想使用 Django 中的 url 标记与另一个页面建立简单的连接.我收到'set' 对象不可逆"的错误消息.经过一番搜索，我一直没有找到任何东西.
urls.py
from django.conf.urls 导入 url从 .导入视图APP_NAME = '网站'网址模式 = {url(r'^$', views.admin_view, name='adminview'),url(r'^eventview/$', views.event_view, name='eventview'),}admin_view.html
<html lang="zh-cn" ><头>{% 加载静态 %}{% 区块头%}{% 包含 'website/header.html' %}{% 结束块 %}<!-- 在此处插入自定义 css --><meta name="viewport" content="width=device-width, initial-scale=1.0"><身体><!-- 顶部导航栏--><nav class="navbar navbar-inverse navbar-fixed-top"><div class="container-fluid"><div class="navbar-header"><button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar"><span class="sr-only">切换导航</span><span class="icon-bar"></span><span class="icon-bar"></span><span class="icon-bar"></span><a class="navbar-brand" href="#">Vivid Fireworks</a><div id="navbar" class="navbar-collapse collapse"><ul class="nav navbar-nav navbar-right"><li><a href="{% url adminview %}">仪表板</a></li><li><a href="{% url eventview %}">添加节目</a></li><li><a href="#">设置</a></li><li><a href="#">个人资料</a></li><li><a href="#">帮助</a></li>
</nav>
我以前没有遇到过这个问题，看起来这将是一个简单的修复，只是我正在寻找的东西.任何帮助表示赞赏.
urlpatterns 应该是一个列表 [...].您当前有一组 {...}.应该是:
urlpatterns = [url(r'^$', views.admin_view, name='adminview'),url(r'^eventview/$', views.event_view, name='eventview'),]在模板中，当 url 模式名称是字符串时，您应该使用引号:
{% url 'adminview' %}{% url 'eventview' %}如果你想使用命名空间，那么app_name应该是小写的.
app_name = '网站'url_patterns = [...]然后需要在使用 url 标签时包含命名空间
{% url 'website:adminview' %}{% url '网站:事件视图' %}I'm just trying to make a simple connection to another page using the url tag in Django. I'm getting a error of "'set' object is not reversible". After searching for a bit I've been unsuccessful in finding anything.
urls.py
from django.conf.urls import url
from . import views
APP_NAME = 'website'
urlpatterns = {
url(r'^$', views.admin_view, name='adminview'),
url(r'^eventview/$', views.event_view, name='eventview'),
}
admin_view.html
<!DOCTYPE html>
<html lang="en" >
<head>
{% load static %}
{% block header%}
{% include 'website/header.html' %}
{% endblock %}
<!-- Insert custom css here -->
<meta name="viewport" content="width=device-width, initial-scale=1.0">
</head>
<body>
<!-- top navbar -->
<nav class="navbar navbar-inverse navbar-fixed-top">
<div class="container-fluid">
<div class="navbar-header">
<button type="button" class="navbar-toggle collapsed" data-toggle="collapse" data-target="#navbar" aria-expanded="false" aria-controls="navbar">
<span class="sr-only">Toggle navigation</span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
<span class="icon-bar"></span>
</button>
<a class="navbar-brand" href="#">Vivid Fireworks</a>
</div>
<div id="navbar" class="navbar-collapse collapse">
<ul class="nav navbar-nav navbar-right">
<li><a href="{% url adminview %}">Dashboard</a></li>
<li><a href="{% url eventview %}">Add Show</a></li>
<li><a href="#">Settings</a></li>
<li><a href="#">Profile</a></li>
<li><a href="#">Help</a></li>
</ul>
</div>
</div>
</nav>
I haven't ran into this problem before and it seems like it'll be a simple fix just something I'm over looking. Any help is appreciated.
urlpatterns should be a list [...]. You currently have a set {...}. It should be:
urlpatterns = [
url(r'^$', views.admin_view, name='adminview'),
url(r'^eventview/$', views.event_view, name='eventview'),
]
In the template, you should use quotes when the url pattern name is a string:
{% url 'adminview' %}
{% url 'eventview' %}
If you want to use namespaces, then app_name should be lowercase.
app_name = 'website'
url_patterns = [
...
]
You then need to include the namespace when you use the url tag
{% url 'website:adminview' %}
{% url 'website:eventview' %}
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