app/views/admin/users/_status_update.html.haml
= form_tag update_status_path do
= hidden_field_tag 'status', status
.form-group
= label :users_to_update, title
= select_tag :users_to_update, options_from_collection_for_select(users, "id", "name"), multiple: true, class: 'form-control select2'
.form-group
= submit_tag 'Update', class: 'btn btn-success form-control'