Subversion-Projekte lars-tiefland.faltradxxs.de

/**
 * Creates `rowspan` cells in a column when there are two or more cells in a 
 * row with the same content, effectively grouping them together visually. 
 * 
 * **Note** - this plug-in currently only operates correctly with 
 * **server-side processing**.
 *
 *  @name fnFakeRowspan
 *  @summary Create a rowspan for cells which share data
 *  @author Fredrik Wendel
 *
 *  @param {interger} iColumn Column index to have row span
 *  @param {boolean} [bCaseSensitive=true] If the data check should be case
 *    sensitive or not.
 *  @returns {jQuery} jQuery instance
 *
 *  @example
 *    $('#example').dataTable().fnFakeRowspan(3);
 */

jQuery.fn.dataTableExt.oApi.fnFakeRowspan = function ( oSettings, iColumn, bCaseSensitive ) {
        /* Fail silently on missing/errorenous parameter data. */
        if (isNaN(iColumn)) {
                return false;
        }

        if (iColumn < 0 || iColumn > oSettings.aoColumns.length-1) {
                alert ('Invalid column number choosen, must be between 0 and ' + (oSettings.aoColumns.length-1));
                return false;
        }

        bCaseSensitive = (typeof(bCaseSensitive) != 'boolean' ? true : bCaseSensitive);

        function fakeRowspan () {
                var firstOccurance = null,
                        value = null,
                        rowspan = 0;
                jQuery.each(oSettings.aoData, function (i, oData) {
                        var val = oData._aData[iColumn],
                                cell = oData.nTr.childNodes[iColumn];
                        /* Use lowercase comparison if not case-sensitive. */
                        if (!bCaseSensitive) {
                                val = val.toLowerCase();
                        }
                        /* Reset values on new cell data. */
                        if (val != value) {
                                value = val;
                                firstOccurance = cell;
                                rowspan = 0;
                        }

                        if (val == value) {
                                rowspan++;
                        }

                        if (firstOccurance !== null && val == value && rowspan > 1) {
                                oData.nTr.removeChild(cell);
                                firstOccurance.rowSpan = rowspan;
                        }
                });
        }

        oSettings.aoDrawCallback.push({ "fn": fakeRowspan, "sName": "fnFakeRowspan" });

        return this;
};