post_detail不显示图像

Question

I have a really weird problem. my index page shows image. There isn't any error, codes are here:

def index(request):
    post = Post.objects.get(id=1)
    return render_to_response("index.html", {"post":post}, context_instance=RequestContext(request))

but my detail page doesnt display image. codes here:

class PostDetailView(DetailView):
    context_object_name = "post"
    model = Post
    template_name = "post_detail.html"

    def get(self, request, *args, **kwargs):
        self.next = self.request.get_full_path()
        return super(PostDetailView, self).get(request, *args, **kwargs)

    def get_context_data(self, **kwargs):
        context = super(PostDetailView, self).get_context_data(**kwargs)
        context["form"] = CommentForm()
        context["next"] = self.next
        context["object_id"] = context['post'].id
        context["comments"] = Comment.objects.filter(
            content_type=ContentType.objects.get_for_model(self.model),
            object_id=context['post'].id, is_published=True)

        return context

my post_detail.html page:

{{ post.title }}  -----here ok!
{{ post.content }} ------here ok!
<div class="img">
    {% if post.image %}
        <img src="media/{{post.image_thumb}}" /> -----but here not ok.Why?
    {% endif %}
</div>

my index.html

{{ post.title }}
{{ post.content }}
<div class="img">
    {% if post.image %}
        <img src="media/{{post.image_thumb}}" />
    {% endif %}
</div>    

So what is my problem, thanks for time.

Answer 1

firstly,make sure you have set the media dir in file settings.py conrrectly and then change your image url to:

  <img src="/media/{{post.image_thumb}}" /> 

you missing a slash

Answer 2

You should use {{ post.image_thumb.url }} instead of {{ post.image_thumb }} .

{{ post.image_thumb }} implicitly calls __unicode__ method of post, but what you want is the url attribute of image, you can get the absolute url of image with this.