上传的图像没有显示,错误的路径

时间:2013-03-20 22:22:13

标签: django upload path

我在显示从管理面板上传的图片时出现问题。 Django呈现错误的路径,可能是由于我的配置错误...

这是我的模型定义:

class Article(models.Model):
    """News article, displayed on homepage to attract users"""
    class Meta:
        db_table = 'article'
    title = models.CharField(max_length=64)
    headline = models.CharField(max_length=255)
    content = HTMLField()
    image = models.ImageField(upload_to = 'articles/', null=True, blank=True)
    active = models.BooleanField()
    created_at = models.DateTimeField()
    def __unicode__(self):
        return self.title

这是网址配置:

from django.conf.urls import patterns, include, url
from django.conf import settings
from django.conf.urls.static import static

urlpatterns = patterns('',
# some stuff
) + static(settings.MEDIA_URL, document_root=settings.MEDIA_ROOT)

settings.py:

PROJECT_DIR = os.path.dirname(__file__)
MEDIA_ROOT = os.path.join(PROJECT_DIR, "media")
MEDIA_URL = '/media/'

观点:

def slider(request):
    context = Context ({ 'articles': Article.objects.order_by('-created_at')[:5] })
    return render(request, 'articles/slider.html', context)

和模板:

{% for article in articles %}
  <img src="{{ article.image.url }}" alt="" />

我希望django呈现http://127.0.0.1:8000/media/articles/slide-02.jpg,但现在呈现http://127.0.0.1:8000/media/slide-02.jpg。我在模型类中定义了upload_to=articles/。那么为什么article.image.url属性返回没有这个重要目录的路径?


编辑:我的模型出了问题。它无法识别 upload_to 目录:

$ ./manage.py shell
Python 2.7.3 (default, Aug  1 2012, 05:14:39) 
[GCC 4.6.3] on linux2
Type "help", "copyright", "credits" or "license" for more information.
(InteractiveConsole)
>>> from articles.models import Article
>>> Article.objects.all()
[<Article: Blackened Recordings Launches>, <Article: The Rockin' Return of Deep Purple>, <Article: See Emily Day 20th April>, <Article: Celebration Day Premieres In Four Countries Announced>, <Article: Waging heavy innovation>, <Article: Rush to play festival D'Ete, Quebec City>]
>>> Article.objects.all().get(pk=1)
<Article: Blackened Recordings Launches>
>>> Article.objects.all().get(pk=1).image
<ImageFieldFile: slide-03.jpg>
>>> Article.objects.all().get(pk=1).image.path
u'/var/www/django/djninja/djninja/media/slide-03.jpg'
>>> Article.objects.all().get(pk=1).image.url
'/media/slide-03.jpg'

同样,它应该是media/articles/slide-03.jpg而不是media/slide-03.jpg。所以我猜所有路由/模板都没问题,模型出了问题。

3 个答案:

答案 0 :(得分:2)

views.py

from django.shortcuts import render_to_response, RequestContext
def slider(request):
    articles = Article.objects.order_by('-created_at')[:5]
    return render_to_response('articles/slider.html', locals(), context_instance = RequestContext(request)

slider.html

{% for article in articles %}
    <img src="{{ MEDIA_URL }}{{ article.image.url }}" alt="" />
{% endfor %}

urls.py

from django.conf import settings
urlpatterns += patterns('',
    (r'^media/(?P<path>.*)$', 'django.views.static.serve', {'document_root': settings.MEDIA_ROOT}),
)

尝试使用上面给出的代码。

答案 1 :(得分:2)

以上解决方案完全可以。我的问题是用JSON编写的不正确配置的灯具并加载到数据库中。我认为在你将articles目录作为upload_to kwarg传递时,它将被动态加载。 不是。它仅在保存图像时使用,在从数据库加载图像时被忽略。因此,如果我有

"image":"slide.jpg"

我把它改为:

"image":"articles/slide.jpg"

它有效。事实上,它一直都有效,但我在django官方文档中遗漏了一个注释。

答案 2 :(得分:1)

您是否尝试使用上传方法:

def upload_path(self, filename):
    return 'media/articles/%s' % filename

class Article(models.Model):
    ...
    image = models.ImageField(upload_to=upload_path, null=True, blank=True)
    ...