如何使用 Web2py 中数据库中的 img 文件更改背景图像 [英] How to change the background image using img file from database in Web2py

问题描述

我想要做的是使用上传到数据库中而不是 'static', 'images' 文件夹中的图像文件来不断更改背景图像.

What I am trying to do is to keep changing the background image using image files that are uploaded in the database instead in the 'static', 'images' folder.

我显然不能在 css 中做到这一点，实际上，我不确定这是否可能.我可以在 layout.html 或 View 中以某种方式完成这项工作吗?

I obviously can't do this in the css, actually, I am not sure if this is even possible. Can I make this work in the layout.html or in the View somehow?

如果不是背景图像，我将在 View 中显示图像:

This is how I would display an image in the View if it wasn't intended to be a background-image:

<img src="{{=URL('download', args=pic_row.pics)}}"/>

当然，这种显示背景法师的方法是行不通的:

Of course, this approach to display a background-mage won't work:

<section id="main" class="main row" style="background-image:{{=URL('download', args=pic_row.pics)}}">

..但是有没有办法让我真正做到这一点?

..but is there a way I can actually achieve this?

推荐答案

<section id="main" class="main row" style="background-image:{{=URL('download', args=pic_row.pics)}}">

问题中提出的上述方法很接近，但是CSS语法不正确.style 属性应该是:

The above method proposed in the question is close, but the CSS syntax is incorrect. The style attribute should be:

"background-image: url('{{=URL('download', args=pic_row.pics)}}')"

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