django上传图片并显示该图片

我有一个问题,这是我的代码
上传图像成功后,它将返回所有数据( item = Item.objects.all())并显示在模板上
如果我只希望用户上传的图片显示在模板上(而不是数据库中的所有图像),该怎么办?
请引导我!
非常感谢你.

I have a question,this is my code
When uploade image success,It will return all data (item=Item.objects.all()) and show on the template
What if I only want the picture which is just uploaded by user to show on template(not all images in database),how can I do this?
Please guide me !
Thank you very much.

views.py

def background(request):
    if request.method=="POST":
        img = ItemForm(request.POST, request.FILES)
        if img.is_valid():
            img.save()
            return HttpResponseRedirect(reverse('imageupload:background'))    
        img=ItemForm()
    item=Item.objects.all()
    return render(request,'uploader/background.html',{'form':img,'item':item,})

models.py

models.py

from sorl.thumbnail import ImageField
class Item(models.Model):
    image = ImageField(upload_to='thumb/')
class ItemForm(forms.ModelForm):
    class Meta:
        model = Item

模板:

<form action="#" method="post" enctype="multipart/form-data">
{% csrf_token %}
    {{form}} <input type="submit" value="Upload" />
</form>

{% for i in item%} 
    {{i.image}}
        {% thumbnail i.image "1024" crop="center" format="PNG"  as im %}
            <img src="{{ im.url }}" width="{{ im.width }}" height="{{ im.height }}">
        {% endthumbnail %}
{% endfor %}    



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