Insert ruby in html class=" " property

Question

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!

Steve · Accepted Answer · 2013-07-23 20:14:36Z

6

<div class="circleElement <%= u.tag %>" >...</div>

should work.

answered Jul 23, 2013 at 20:14

Steve

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2 Comments

user2569886 Over a year ago

OH MY GOD.... yes it did work. Thank you very very much!!! I was under the impression that <%= inside of double quotes would not get read as ruby!! This will open up many doors, it's so simple :)

tadman Over a year ago

In ERB, everything inside <% ... %> gets evaluated regardless of context. The exception is nesting where <%= " <%= ...%> " %> is not valid.

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