在模板中显示上传的图像-Django
我正在尝试将上传的图像显示到我的虚构蔬菜目录的模板中.
I am trying to display uploaded images to a template for my imaginary vegetable catalogue.
我有一个页面添加新蔬菜并上传图像.主要模板是蔬菜列表,稍后将带有缩略图.
I have a page to add a new vegetable and upload images. The main template is a list of vegetables which will later have thumbnails.
现在,当查看蔬菜的详细信息页面时,我想显示其图像,但是模板仅显示字符串'VegetableImage Object'来代替图像,甚至带有img标签.
Now, when viewing the detail page of the vegetable I want to display its images, but the template is only displaying the string 'VegetableImage Object' in place of an image, even with img tags.
我很困惑,因为模板显然找到了图像,但是它们只是作为通用字符串显示.
I am confused because the template has obviously found the images but they are displayed just as a generic string.
models.py
models.py
class Vegetable(models.Model):
title = models.CharField(max_length=0)
category = models.CharField(max_length=50,
choices=CATEGORY_CHOICES)
thumbnail = models.ImageField(upload_to = 'uploaded_images/')
class VegetableImage(models.Model):
vegetable = models.ForeignKey(Vegetable, default=None, related_name='images')
image = models.ImageField(upload_to='images/vegetable',
verbose_name='image',)
主模板的视图(所有蔬菜的列表)和详细信息视图
view for main template (a list of all vegetables) and detail view
class VegetableView(generic.ListView):
template_name = 'vegetable/vegetable.html'
context_object_name = 'vegetable_list'
def get_queryset(self):
return Vegetable.objects.all()
class DetailView(generic.DetailView):
model = Vegetable
template_name = 'vegetable/detail.html'
用于显示蔬菜细节的细节模板
Detail template for displaying detail of vegetable
{% if view %}
<h1>Title: {{ vegetable.title }}</h1>
<h2>Category: {{ vegetable.category }}</h2>
<p>Thumbnail: {{ vegetable.thumbnail }}</p>
<p>Images:
{% for vegetable in vegetable.images.all %}
{{ vegetable }}
{% endfor %}
</p>
{% else %}
<p> no vegetables found - error </p>
{% endif %}
尝试在模板中使用以下代码显示图像:
Try to display the image using the following code in your template:
<img src="{{ vegetable.image.url }}" alt="...">
这是您从imagefield对象访问url的方式.
This is how you access the url from the imagefield object.
有关更多技术细节,请 ImageField
继承自 FileField
.在文档中声明 :
In more technical detail, ImageField
inherits from FileField
. As it is stated in the documentation:
在模型*问
FileField
时,会为您提供FieldFile
的实例作为访问基础文件的代理...
When you access a
FileField
on a model, you are given an instance ofFieldFile
as a proxy for accessing the underlying file...
因此:
一个只读属性,可通过调用基础Storage类的url()
方法来访问文件的相对URL.
A read-only property to access the file’s relative URL by calling the url()
method of the underlying Storage class.
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