Individual column searching in Pentaho CDE BI server

Table component in CDE Pentaho is based on datables, I wanted to implement this functionality in my tables https://datatables.net/examples/api/multi_filter.html

$(document).ready(function() {
    // Setup - add a text input to each footer cell
    $('#example tfoot th').each( function () {
        var title = $('#example thead th').eq( $(this).index() ).text();
        $(this).html( '<input type="text" placeholder="Search '+title+'" />' );
    } );

    // DataTable
    var table = $('#example').DataTable();

    // Apply the search
    table.columns().eq( 0 ).each( function ( colIdx ) {
        $( 'input', table.column( colIdx ).footer() ).on( 'keyup change', function () {
            table
                .column( colIdx )
                .search( this.value )
                .draw();
        } );
    } );
} );

I can't get it to work, I got Error processing component message, I tried including it as js snippet, as an external source, in post fetch and in post execution function, I thought that the lack of indexes for every column was causing the problem, I included the indexes in output options, it didn't work either,

I also found this alternative http://jsfiddle.net/CmMfJ/2/#collaborate

var table = $('#example').DataTable();

$("#example tfoot th").each( function ( i ) {
  var select = $('<select><option value="">All</option></select>')
    .appendTo( $(this).empty() )
    .on( 'change', function () {
       var term =  $(this).val()!=='' ?   '^'+$(this).val()+'$' : '';
       table.column( i )
          .search(term, true, false )
          .draw();
       } );

  table.column( i ).data().unique().sort().each( function ( d, j ) {
    select.append( '<option value="'+d+'">'+d+'</option>' )
  });
});

I didn't get any errors with that code but it doesn't work, the table doesn't change, in both cases In Post Execution function I did this: function f(){ code }, I also changed the variable #example for the name of my table, nothing worked, any help would be really appreciated, thanks.