数据表多列排序 - 规范所需的帮助

Datatables multi-column sort - help required with specification

这是我第一次尝试对数据table进行多列排序,我只需要一些帮助来确定我指定的内容是否会按我希望的方式工作。

我有以下 table.

我想要的是数据table到:

这是我迄今为止尝试过的方法,但如果可能的话,我希望得到一些帮助。另外我如何指定排序的 desc 部分(目前我只能弄清楚 asc.

  $("#storeHealthTbl").dataTable ({
      "bSort": true,
      "bLengthChange": false,
      "bPaginate": false,
      "aoColumnDefs": [ {
          "aTargets": [ 2 ],
          "sType": "string",
          "aDataSort": [ 2, 4, 6 ] /* Want 2,4,6 to be desc but don't know how*/
      }, {
          "aTargets": [ 4 ],
          "sType": "string",
          "aDataSort": [ 4, 6 ] /* Want 4,6 to be desc but don't know how*/
      }, {
          "aTargets": [ 6 ],
          "sType": "string",
          "aDataSort": [ 6 ] /* Want 6 to be desc but don't know how*/
      }, {
          "aTargets": [ 0 ],
          "sType": "numeric",
          "aDataSort": [ 0 ] /* This one is asc */
      }, ]
  });

我还应该提到,其中包含图像的列在某些时候会有字母 "X",因此这就是我希望排序的方式。如果没有 "X" 并且它们都是绿色图像(即不是字母字符”,那么我想跳转到我指定的下一个类别)。

希望这是有道理的。

我正在使用数据 tables 1.9.4.

谢谢

我找不到任何可以完成这种级别的条件排序的内置功能。如果您不介意使用相当于锤子的程序化工具,下面的代码应该可以解决问题。

请注意,我的排序顺序可能不适合您的需要,但您可以很容易地进行更改。

这是一个working jsfiddle

// function to check our conditions and set the proper sort order
function getSortOrder(sortCols, sortVars) {
    var set = false;
    // loop through our array of columns to check
    $.each(sortCols, function(ind, elm) {
        // create a var to hold the value in this column on the first row
        var firstVal;
        // loop through each row
        $("#datatable").find('tr').each(function(tri, tre) {
            // stop checking if we already found a column with different values
            if (!set) {
                // otherwise, et get the value in this column on this row
                var curCellVal = $(this).find('td').eq(sortCols[ind]).text();
                // row 0 is a header row, do nothing 
                if (tri == 0) { 
                } else if (tri == 1) { // for first actual row, set `firstVal` to its value
                    firstVal = curCellVal;
                } else { // if after first row, check current row's cell value against 'firstVal'
                    // if the values are different, this column can be sorted, 
                    if (curCellVal != firstVal) {
                        // flag as set so the function stops looking
                        // this could probably be done better
                        set = true; 
                         // initialize datatable with the sort order at the current index of `sortVars`
                        initDTWithSortOrder(sortVars[ind]);
                    }
                }
            }
        });
    });
    // default initialization if not caught by our function
    var datatable = set ? null : $("#datatable").dataTable(); 
};
// `getSortOrder()` takes two parameters
// parameter 1: array: columns to check
// parameter 2: array: sort values (each being a  muti-dimensional array: [column, direction] )
getSortOrder([2, 6, 8, 0], [
    [[2, 'desc'],[4, 'desc'],[6, 'desc']], // sort order to use is column 3 is not all the same value
    [[4, 'desc'],[6, 'desc']],             // sort order to use is column 7 is not all the same value
    [[8, 'desc']],                         // sort order to use is column 9 is not all the same value
    [[0, 'asc']],                          // sort order to use is column 1 is not all the same value
]);

function initDTWithSortOrder(sortOrder) {
    $("#datatable").dataTable({
        "bSort": true,
        "bLengthChange": false,
        "bPaginate": false,
        "aaSorting": sortOrder
    });
}