Ruby-on-rails 如何将类添加到 image_tag rails helper
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How to add class to an image_tag rails helper
提问by content01
I have the following code:
我有以下代码：
<%= image_tag iterator.image.url(:small), :class => "img_preview" %>
But the rendered HTML shows:
但呈现的 HTML 显示：
<img src="/actives/hotels/13/small/clean_wave.jpg?1317675452" alt="Clean_wave">
Why the "class" attribute isn't there?
为什么“class”属性不存在？
Thank you!
谢谢！
回答by Simpleton
Your class has to be assigned inside of the brackets to be used as part of the options being passed through. Try:
您的类必须在方括号内分配，以用作传递的选项的一部分。尝试：
<%= image_tag(iterator.image.url(:small), :class => "img_preview") %>
回答by Brandon LoGuercio
For newbies like myself, heres a cleaner version with the newer rails syntax:
对于像我这样的新手，这里有一个带有较新 rails 语法的更简洁的版本：
<%= image_tag iterator.image.url(:small), class:"img_preview" %>
