Django上下文处理器以显示图像

Question

如何为我的images_people列表中的每个图像添加标题？

可以在级别实践意义上改进context_processor吗？

我想在网页中显示随机图像，然后制作一个上下文处理器

内容：

（以前在我的context_processors设置中添加了...）：

# -*- coding: utf-8 -*-

from random import choice

images_people = ['https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia2.jpg','2',
          'https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia3.jpg',
          'https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia4.jpg',
          'https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia-children.jpg',
          'https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/ElZocalo.jpg',
          'https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/israel.jpg',
          ]

def images(request):
    return {'images': choice(images_people)}

在我的模板中，我正在调用此context_processor：

<div class="portrait">
    <div class="img-cont" style="background: url('{{ images  }}') no-repeat center; background-size:cover;">
    </div>
         # Add caption to image
         <!-- <span></span> -->
</div>

Answer 1

您可以将上下文处理器中的列表更改为2元组（网址，标题）的列表。

images_people = [
    ('https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia2.jpg', 'Caption 1'), 
    ('https://s3-sa-east-1.amazonaws.com/ihost-project/assets/img/bolivia3.jpg', 'Caption 2),
    ...
]

def images(request):
    # n.b changed from `images` to `image` since it's a single image
    return {'image': choice(images_people)}

然后在您的模板中， {{ images.0 }}将成为URL， {{ images.1 }}将成为标题。

如果您不喜欢按索引访问元组，则可以查看NamedTuple或创建一个类。