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OPTIONS FOR SELECT IN RAILS3

1)form_for with options for select in rails

<%= f.select :user_id,options_for_select(User.find(:all).collect {|c| [ c.name, c.id ]},:selected => @user.name) %>

2)select_tag with options_for select with javascript

<%= select_tag 'city', options_for_select([["Select name",'']]+@user.collect{ |u|[u.name, u.name] },@user.name), :data => { :remote => true, :url => url_for(:controller => "user", :action => "selected_user") } %>

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