jQuery DataTables 'OR' Search/ Filter

Question

I am using jQuery DataTables (http://www.datatables.net/) to display some tabular data. The search/ filter is a powerful feature. Although if multiple keywords are searched

Answer 1

AND-filter (include rows where all search words is present). This custom filter overrides the builtin filtering process. Each column in each row is compared with each search word.

$.fn.dataTableExt.afnFiltering.push(
  function(oSettings, aData, iDataIndex) {
      var keywords = $(".dataTables_filter input").val().split(' ');  
      var matches = 0;
      for (var k=0; k<keywords.length; k++) {
          var keyword = keywords[k];
          for (var col=0; col<aData.length; col++) {
              if (aData[col].indexOf(keyword)>-1) {
                  matches++;
                  break;
              }
          }
      }
      return matches == keywords.length;
   }
);

forked fiddle -> http://jsfiddle.net/9d097s4a/

---

OR-filter (include rows where at least one of the search words is present). This is another approach, mostly an attempt to streamline this answer above. Instead of playing with oSearch and hardcoded search terms, the default filtering event is replaced with an event that tokenizes the search phrase and then performs an advanced fnFilter(). As optional experiment, the search is now only performed when the user hits enter - it feels somehow more natural.

var input = $(".dataTables_filter input");
input.unbind('keyup search input').bind('keypress', function (e) {
    if (e.which == 13) {
       var keywords = input.val().split(' '), filter ='';
       for (var i=0; i<keywords.length; i++) {
           filter = (filter!=='') ? filter+'|'+keywords[i] : keywords[i];
       }            
       dataTable.fnFilter(filter, null, true, false, true, true);
       //                                ^ Treat as regular expression or not
    }
});

see demo -> http://jsfiddle.net/2p8sa9ww/

Answer 2

The same but triggering search on "every" key press instead of pressing enter:

var dataTable = $('table').dataTable();
var input = $(".dataTables_filter input");
input.unbind('keyup search input').bind('keyup',
function(e) {
    if (input.val().length > 0) {
        var keywords = input.val().trim().split(' '), filter = '';
        for (var i = 0; i < keywords.length; i++) {
            filter = (filter !== '') ? filter + '|' + keywords[i] : keywords[i];
        }
        dataTable.fnFilter(filter, null, true, false, true, true);
        //                                ^ Treat as regular expression or not                        
    } else if (input.val().length == 0) {
        dataTable.fnFilter(" ", null, true, false, true, true);
    }
});

<script
  src="https://code.jquery.com/jquery-3.2.1.slim.min.js"
  integrity="sha256-k2WSCIexGzOj3Euiig+TlR8gA0EmPjuc79OEeY5L45g="
  crossorigin="anonymous"></script>
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/1.10.6/css/jquery.dataTables.css">
<script type="text/javascript" language="javascript" src="//cdn.datatables.net/1.10.6/js/jquery.dataTables.min.js"></script>
<link rel="stylesheet" type="text/css" href="//cdn.datatables.net/responsive/1.0.6/css/dataTables.responsive.css">
<script type="text/javascript" language="javascript" src="//cdn.datatables.net/responsive/1.0.6/js/dataTables.responsive.js"></script>

<h5>OR SEARCH</h5>
<table>
  <thead>
    <tr>
        <th>A</th>
        <th>B</th>
        <th>C</th>
        <th>D</th>
    </tr>
  </thead>
  <tbody>
      <tr><td>0</td><td>0</td><td>0</td><td>10</td></tr>
      <tr><td>0</td><td>5</td><td>0</td><td>0</td></tr>
      <tr><td>0</td><td>0</td><td>0</td><td>0</td></tr>
      <tr><td>2</td><td>0</td><td>0</td><td>10</td></tr>
      <tr><td>0</td><td>0</td><td>9</td><td>10</td></tr>
      <tr><td>0</td><td>0</td><td>99</td><td>0</td></tr>
  </tbody>
</table>

var dataTable = $('#your_datatable').dataTable();
var input = $(".dataTables_filter input");
input.unbind('keyup search input').bind('keyup',
function(e) {
    if (input.val().length > 0) {
        var keywords = input.val().trim().split(' '), filter = '';
        for (var i = 0; i < keywords.length; i++) {
            filter = (filter !== '') ? filter + '|' + keywords[i] : keywords[i];
        }
        dataTable.fnFilter(filter, null, true, false, true, true);
        //                                ^ Treat as regular expression or not                        
    } else if (input.val().length == 0) {
        dataTable.fnFilter(" ", null, true, false, true, true);
    }
});

Answer 3

I got this working by using regEx search. I used the following regEx to search throughout the table for keywords 10 99

^(?=.*?(10|99)).*?

Forked fiddle - http://jsfiddle.net/illuminatus/2j0Lz5or/6/

Ref: http://datatables.net/forums/discussion/12062/filtering-jquery-datatable-using-regular-expression

Answer 4

Updated for Datatables 1.10

//Search field in new location

Table = $('#your_datatable').DataTable();
$('#your_input_text_field').keyup(function () {
    Table.search($(this).val()).draw();
})

////OR search (enabling regular expression search)
var input = $('#your_input_text_field');
input.unbind('keyup search input').bind('keypress', function (e) {
    if (e.which == 13) {
        var keywords = input.val().split(' '),
            filter = '';
        for (var i = 0; i < keywords.length; i++) {
            filter = (filter !== '') ? filter + '|' + keywords[i] : keywords[i];
        }
        //true (param 2) turns regex on, false (param 3) turns smart search off
        Table.search(filter, true, false).draw();
    }
});