<%= f.inputs do %> <%= f.input :title %> <%= f.input :description, :input_html => {:rows => "2", :class => "col-md-8"} %> <%= f.input :vdays, :collection => @conference.vdays.map { |x| [x.day, x.id] }, :label => "Position is required for the following days:" %> <%= remove_association_link :vposition, f %> <% end %>