Rails：如何将 class 添加到此图像 src 代码中？ 将 div 标签放在它周围是行不通的

Question

<% if item.image.attached? %>
    <image src="<%=(url_for(item.image), :class => "itemholsIm") %>">
<% end %>

How should it be done?

Answer 1

You can use img_tag helper.

<%= image_tag(item.image, class: "itemholsIm") %>

Answer 2

You have to put the CSS class out of the <%= %>

Try this:

<% if item.image.attached? %>
    <image src="<%=(url_for(item.image)%>" class="itemholsIm">
<% end %>

Answer 3

Yes, the rails img_tag helper is the best solution !