Tablesorter sort; multiple checkboxes, multiple columns

Question

I\'ve got a tablesorter running almost the way I would like it, there is just one more thing that I don\'t know how to do.

Right now, I have table in which you can s

Answer 1

All that you need to do is comment out, or remove, one line - filters.val('');:

Here is the code, and a demo (I added clear buttons to each set as well to allow clearing a filter column)

$('button.search').click(function() {
    var filters = $('table').find('input.tablesorter-filter'),
        col = $(this).data('filter-column'),
        txt = $(this).data('filter-text');
    // filters.val('');
    filters.eq(col).val(txt).trigger('search', false);
});

---

Also, this code requires my fork of tablesorter in order to work. Here is the code for others that might be interested:

HTML example:

<button class="search" data-filter-column="4" data-filter-text="Netherlands">Netherlands</button>
<button class="search" data-filter-column="4" data-filter-text="Belgium">Belgium</button>
<button class="search" data-filter-column="4" data-filter-text="Germany">Germany</button>
<button class="search" data-filter-column="4" data-filter-text="">Clear</button>

<table id="festivaloverzichttable" class="tablesorter">
  <thead>
    <tr>
      <th width="17%" data-placeholder="Search...">Event</th>
      <th width="18%" data-placeholder="Search...">Date</th>
      <th width="9%" data-placeholder="Search...">Duration</th>
      <th width="12%" data-placeholder="Search...">Place</th>
      <th width="10%" data-placeholder="Search...">Country</th>
      <th data-placeholder="Zoek...">Genre(s)</th>
    </tr>
  </thead>
  <tbody>
    <tr>
      <td>Event 1</td>
      <td data-date="06-02">TBA</td>
      <td>2</td>
      <td>Oisterwijk</td>
      <td>Netherlands</td>
      <td>Hardstyle</td>
    </tr>
    <tr>
      <td>Event 2</td>
      <td data-date="10-11">11 October t/m 13 October</td>
      <td>3</td>
      <td>Volkel</td>
      <td>Netherlands</td>
      <td>Pop, Rock, Urban, Electronic</td>
    </tr>
    <tr>
      <td>Event 3</td>
      <td data-date="06-02">TBA</td>
      <td>1</td>
      <td>Amsterdam</td>
      <td>Netherlands</td>
      <td>Electronic</td>
    </tr>
    <tr>
      <td>Event 4</td>
      <td data-date="09-01">TBA</td>
      <td>1</td>
      <td>Utrecht</td>
      <td>Netherlands</td>
      <td>Electronic, Urban</td>
    </tr>
    <tr>
      <td>Event 5</td>
      <td data-date="07-06">6 July - 7 July</td>
      <td>2</td>
      <td>Beek en Donk</td>
      <td>Netherlands</td>
      <td>Electronic, Hardstyle</td>
    </tr>

    ...

  </tbody>
</table>​

Javascript (I removed the data parser code and default filter widget options to avoid confusion)

$("#festivaloverzichttable").tablesorter({
    sortList: [[0, 0]],
    widgets: ['zebra', 'filter', 'saveSort'],
    widgetOptions: {
        filter_reset: 'button.reset'
    }
});

$('button.search').click(function() {
    var filters = $('table').find('input.tablesorter-filter'),
        col = $(this).data('filter-column'),
        txt = $(this).data('filter-text');
    filters.eq(col).val(txt).trigger('search', false);
});

---

Update: To allow for multiple options, change the button search to the following (updated demo)

$('button.search').click(function() {
    var filters = $('table').find('input.tablesorter-filter'),
        col = $(this).data('filter-column'),
        txt = $(this).data('filter-text'),
        cur = filters.eq(col).val(),
        mult, i;

    if (cur && txt !== '') {
        mult = cur.split('|');
        i = $.inArray(txt, mult);
        if (i < 0) {
            mult.push(txt);
        } else {
            mult.splice(i,1);
        }
        txt = mult.join('|');
    }        
    filters.eq(col).val(txt).trigger('search', false);
});