问题
This is probably really stupid but I've spent the last 2 hours trying to figure out how to do this with no luck at all.
Basically I need my html page to do the following:
<div class="circleElement">
...
</div>
But I need to add more classes to that div class with ruby, the classes are coming in from a text field in my database.
I tried inserting ruby like:
<div class="circleElement"+ <%= u.tag %> >...</div>
And many different variations of this line with no luck at all :(
I should add that u.tag holds exactly this string> "activeTag classicTag".... so it should append with no problems but it's not doing it!
回答1:
<div class="circleElement <%= u.tag %>" >...</div>
should work.
来源：https://stackoverflow.com/questions/17820145/insert-ruby-in-html-class-property