I'm trying to add buttons to my DataTable. As instructed in https://github.com/rweng/jquery-datatables-rails I added the dataTables.buttons JS.
My application.js:
//= require jquery
//= require jquery.turbolinks
//= require jquery-ui
//= require jquery_ujs
//= require dataTables/jquery.dataTables
//= require dataTables/extras/dataTables.buttons
//= require bootstrap
//= require turbolinks
//= require_tree .
I didn't find a CSS in the assets of the gem https://github.com/rweng/jquery-datatables-rails/tree/master/app/assets/stylesheets/dataTables/extras.
Hence my application.css (doesn't contain anything related to buttons) :
*= require jquery-ui
*= require dataTables/src/demo_table_jui
*= require_tree .
*= require_self
*/
In my coffee script I have (mimicking https://datatables.net/extensions/buttons/examples/initialisation/export.html ):
jQuery ->
    $('#rating').dataTable(
            bJQueryUI:       true,
            sPaginationType: "full_numbers",
            iDisplayLength:  100,
            scrollY:         "1000px",
            scrollCollapse:  true,
            dom: 'Bfrtip',
            buttons: [
                'copy', 'excel', 'pdf'
            ]
            )
I'm guessing that I'm missing something silly , like the CSS or something colliding options. When I tried adding javascript_tag ( https://cdn.datatables.net/buttons/1.1.2/js/dataTables.buttons.min.js ) / stylesheet_tag ( https://cdn.datatables.net/buttons/1.1.2/css/buttons.dataTables.min.css ) to the view but that didn't help.