You can not select more than 25 topics Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
Plugins/sorting/chapter.js

51 lines
1.3 KiB
JavaScript

/**
* Sorts a column containing chapter numbers. This can be most useful when
* using DataTables for a book or book reference style application. By
* default, five sections are supported (a.b.c.d.e) with each being upto
* four-digits long. Those defaults are controlled by constMaxSections and
* constMaxSectionDigits respectively, and can be easily changed
*
* @name chapter
* @summary Sort book chapters numerically
* @author Colin Marks
*
* @example
* $('#example').dataTable( {
* columnDefs: [
* { type: 'chapter', targets: 0 }
* ]
* } );
*/
jQuery.extend(jQuery.fn.dataTableExt.oSort, {
'chapter-pre': function(a) {
function makeFiller(count) {
return count === 0 ? '' : Array(count + 1).join('0');
}
var constMaxSections = 5;
var constMaxSectionDigits = 4;
var filler;
var result = '';
var sections = a.split('.');
for (var i = 0; i < constMaxSections; i++) {
filler = i < sections.length ? constMaxSectionDigits - sections[i].length : constMaxSectionDigits;
result += filler === 0 ? '' : Array(filler + 1).join('0');
result += i < sections.length ? sections[i] : '';
}
return result;
},
'chapter-asc': function(a, b) {
return a < b ? -1 : a > b ? 1 : 0;
},
'chapter-desc': function(a, b) {
return a < b ? 1 : a > b ? -1 : 0;
}
});