how to set default value of form_for select

Question

I would like to know how to set default value on form_for select.

My code goes like this:

<%= form_for(@user) do |f| %>
 .
 .
 .

 


        
      

Answer 1

Add a parameter :selected =>

    <%= form_for(@user) do |f| %>
     .
     .
     .

     

     <%= f.select(:user_group_id, options_for_select(@user_groups.collect {|p| [ p.name, p.id ] },   "Select Category"), :selected =>f.object.user_group_id) %>
     
    <%= end %>