tab/app/views/users/show.html.haml

%h2= @user.name
%table#transactions.display{data: { source: user_path(@user) }}
  %thead
    %tr
      %th Amount
      %th Origin
      %th Message
      %th Peer
      %th Time
  %tbody

:javascript
  $(document).ready(function() {
    $('#transactions').DataTable({
      'processing': true,
      'serverSide': true,
      'ajax': $('#transactions').data('source'),
      'pagingType': 'full_numbers'
      });
  });