Displaying ruby content in rhtml

Hi everyone,

I am a newbie to RoR. I installed the Instant Rails package 1.7, and
with scaffold, I was able to create and connect to a database.
However, when I embed some code in rhtml(list.rhtml in the tutorial
there), it does not display in browser. I can see the html part on the
screen without problem, but the ruby part does not get processed at all.
When I try a simple rhtml file such as below,

All Recipes
  • Addition: <% print "World!" %>

Online Cookbook - All Recipes

all I can see is
Online Cookbook.

I think this has something to do with eruby or erb, but do not know how
to proceed.

Any help would be much appreciated!


On 3 Jan 2009, at 00:02, Shrikant Sv wrote:

<% puts … %> or <% print …%> achieves very little (at best it will
output to your server’s log file).
You need to be using <%= which inserts the result of evaluating it’s
contents, ie <%= Time.now %>



<% %> is code that is executed, but not displayed in the browser.
<%= %> is code that will be executed and displayed.

Hope that helps!

Ethan Gunderson

On Fri, Jan 2, 2009 at 6:02 PM, Shrikant Sv

Just an example of both usages

<% if is_admin? do %>

<%= admin_title %>

<% end %>

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