这是我的模特
class Gallery(models.Model):
title = models.CharField(max_length=30)
description = models.TextField(blank=True)
featured_image = models.ImageField(upload_to="gallery")
def __str__(self):
return u'{}'.format(self.title)
class GalleryImage(models.Model):
title = models.CharField(max_length=50, blank=True)
description = models.TextField(blank=True)
gallery = models.ForeignKey(Gallery)
image = models.ImageField(upload_to="gallery")
def __str__(self):
return u'{}'.format(self.title)
以下是我的观点:
def gallery(request):
galleries = Gallery.objects.all()
return render(request, "gallery/home.html", {'galleries': galleries})
def gallery_section(request, gallery_id):
gallery_images = GalleryImage.objects.filter(gallery_id=gallery_id)
return render(request, "gallery/section.html",{'gimages': gallery_images})
我想从图库模型中调用featured_image
字段,并在section.html呈现的文件中使用它。
无法理解为什么我无法访问此字段。
section.html中的模板代码:
.about{
background-image: url({{ gallery.featured_image.url }});
background-size: cover;
}
home.html中的模板代码:
{% for gallery in galleries %}
<a href="gallery/{{ gallery.id }}">
<div class="col-lg-3 col-md-3 col-sm-3 col-xs-6 people-desc text-center">
<img src="{{ gallery.featured_image.url }}" alt="" class="img-responsive people">
<h4>{{ gallery.title }}</h4>
</div>
</a>
{% endfor %}
点击代码后,我会转到section.html页面,但我也希望在该页面上使用featured_image
。
答案 0 :(得分:1)
如果要在视图Gallery
中使用gallery_section
对象,则必须将该对象传递到模板中:
def gallery_section(request, gallery_id):
gallery = Gallery.objects.get(id=gallery_id)
gallery_images = GalleryImage.objects.filter(gallery_id=gallery_id)
return render(request, "gallery/section.html",{'gimages': gallery_images, 'gallery': gallery})
它不会自动或神奇地出现在您的模板中。如果您在循环图像时使用它,您也可以执行以下操作:
{% for image in gimages %}
{% image.gallery.featured_image.url %}
{% endfor %}
但要在该循环之外使用,您必须将图像传递给模板才能获得它。