jQuery tablesorter: How to disable sorting on a column by using a class instead of "inline JSON"?

Question

I am using the jQuery tablesorter plugin. I know how to disable sorting on a column by using the jQuery Metadata plugin:

<th class="{sorter: false}">Don't sort me</th>

But I would rather do this by setting a class, so I don't have to use an additional plugin. Also I think I would remember the class name easier than remembering this JSON syntax. How can I do the same same thing using this syntax:

<th class="not-sortable">Don't sort me</th>

Answer 1

I think the only way to get this to work is modifying the source code of the plugin.

At jquery.tablesorter.js, Line 483:

function checkHeaderMetadata(cell) {
   if (($.metadata) && ($(cell).metadata().sorter === false)) {
       return true;
   };
   return false;
}

Change this code to:

function checkHeaderMetadata(cell) {
   if ((($.metadata) && ($(cell).metadata().sorter === false)) || $(cell).hasClass("not-sortable")) {
       return true;
   };
   return false;
}

Now the function checkHeaderMetadata is also returning true, if the cell has a class named not-sortable.