.panel.panel-primary .panel-heading Users .panel-body .radio %label = radio_button_tag 'users', 'all', (params[:users] == "all") All users .radio %label = radio_button_tag 'users', 'enabled', (params[:users] == "enabled") Only enabled users .radio %label = radio_button_tag 'users', 'group', (params[:users] == "group") Only these groups = select_tag 'group_id[]', options_for_select(Group.all.collect {|g| ["[#{g.name}] #{g.description}", g.id]}), { id: 'group_id', class: 'select2 form-control', multiple: "true"}