Django模板不会显示我的模型变体

时间:2013-11-08 21:35:29

标签: django django-models django-templates django-views

抱歉,我是Django的新手并且一般编程,但我正在尝试调用我的模型中的变量以显示在特定页面上。我将我的网址映射到example.com/archive/book_slug,并希望获得标题,作者,ISBN等详细信息。我使用博客应用程序在管理页面中注册我的模型。

当我转到URL时,我的模板中出现问题。我希望书的标题出现在标题中。有人可以帮忙吗?

博客/ models.py

from django.db import models

class Book_item(models.Model):
   book_title = models.CharField(max_length=255, blank=False)
   book_author = models.CharField(max_length=255)   
   book_publisher = models.CharField(max_length=255, blank=True)
   book_date_published = models.IntegerField(blank=True)
   book_isbn = models.IntegerField(blank=True)
   book_slug = models.SlugField(max_length=255, unique=True, blank=False,
                                primary_key=True)
   book_body = models.TextField(blank=True)

def __unicode__(self):
    return self.book_title

博客/ views.py

from django.shortcuts import render, get_object_or_404
from blog.models import Book_item

# view for /achive/; template at archive.html
def archive_index(request):
    book_info = Book_item.objects.all()
    context = {'book_info' : book_info} 
    return render(request, 'blog/archive.html', context)

# view for /archive/book_title; 404 if no title; template at book_detail.html
def book_details(request, book_slug):
    bookdeets = Book_item.objects.filter(book_slug=book_slug)
    details = get_object_or_404(Book_item, book_slug=book_slug)
    context = {'details' : details, 'bookdeets' : bookdeets}
    return render(request, 'blog/book_detail.html', context)

博客/ urls.py

from django.conf.urls import patterns, url
from blog import views

urlpatterns = patterns('',

    # archive index at /archive/                   
    url(r'^$', views.archive_index),

    # book deatils at /archive/book_title
    url(r'^(?P<book_slug>[\w-]+)/$', views.book_details),

 )

博客/ book_detail.html

{% extends "base.html" %}

{% block title %}{{Book_item.book_title}}{% endblock %}

{% block headercontent %}
<h1>{{Book_item.book_title}}</h1>
{% endblock %}

2 个答案:

答案 0 :(得分:3)

尝试;

<h1>{{details.book_title}}</h1>

您已通过响应上下文中的“details”变量将书籍详细信息传递给模板。

另外,您实际上也可以删除bookdeets = Book_item.objects.filter(book_slug=book_slug)行,因为您已经通过下面的get_object_or_404方法直接获得了所需的书。鉴于slug是唯一的,filter将返回单个元素查询集,因此这些只是两种不同的方式来获取相同的对象(除了get_object_or_404是一个方便的'快捷方式',如果找不到任何内容将返回404)

答案 1 :(得分:0)

尝试使用小写的模型名称。

<h1>{{ book_item.book_title }}</h1>