selected attribute in options_for_select

rubyonrails-talk
1

Hello Everyone

I have a select_tag which I populate using a map, I use options_for_select method to pass the map and "selected" value. For some reason I can not get the option "selected" based on the value I pass to the selected attribute. Here is the code

<%= select_tag :current_course,          options_for_select( Course.find(:all).map {|p| [p.title,p.id]}, @selected ) %>

The corresponding HTML produced is

<select id="current_course" name="current_course" >   <option value="1">Mathematics I</option>   <option value="2">Engineering Design</option>   <option value="3">Technical Writing</option> </select>

When I printed the value of @selected variable, it is either 1,2 or 3. But I never get any option selected.

Interestingly if instead of passing @selected, I pass 1, 2 or 3 as in the code below

<%= select_tag :current_course,          options_for_select( Course.find(:all).map {|p| [p.title,p.id]}, 2 ) %>

I DO GET 2nd option selected.

I am wondering, if I am doing anything wrong passing a variable as "selected" attributed in options_for_select method.

Any help or suggestions would really be appreciated.

Thanks - AJ

2

Jeff Emminger wrote:

likely @selected is a different type than p.id, i.e. not an int.

try

<%= select_tag :current_course,          options_for_select( Course.find(:all).map {|p| [p.title,p.id]}, @selected.to_i ) %>

On Jul 20, 6:25�pm, Abhishek Jain <rails-mailing-l...@andreas-s.net>

to_i did work.

Thanks guys

-AJ