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/**
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* Creates `rowspan` cells in a column when there are two or more cells in a
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* row with the same content, effectively grouping them together visually.
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*
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* **Note** - this plug-in currently only operates correctly with
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* **server-side processing**.
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*
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* @name fnFakeRowspan
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* @summary Create a rowspan for cells which share data
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* @author Fredrik Wendel
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*
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* @param {interger} iColumn Column index to have row span
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* @param {boolean} [bCaseSensitive=true] If the data check should be case
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* sensitive or not.
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* @returns {jQuery} jQuery instance
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*
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* @example
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* $('#example').dataTable().fnFakeRowspan(3);
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*/
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jQuery.fn.dataTableExt.oApi.fnFakeRowspan = function ( oSettings, iColumn, bCaseSensitive ) {
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/* Fail silently on missing/errorenous parameter data. */
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if (isNaN(iColumn)) {
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return false;
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}
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if (iColumn < 0 || iColumn > oSettings.aoColumns.length-1) {
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alert ('Invalid column number choosen, must be between 0 and ' + (oSettings.aoColumns.length-1));
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return false;
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}
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bCaseSensitive = (typeof(bCaseSensitive) != 'boolean' ? true : bCaseSensitive);
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function fakeRowspan () {
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var firstOccurance = null,
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value = null,
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rowspan = 0;
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jQuery.each(oSettings.aoData, function (i, oData) {
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var val = oData._aData[iColumn],
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cell = oData.nTr.childNodes[iColumn];
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/* Use lowercase comparison if not case-sensitive. */
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if (!bCaseSensitive) {
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val = val.toLowerCase();
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}
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/* Reset values on new cell data. */
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if (val != value) {
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value = val;
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firstOccurance = cell;
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rowspan = 0;
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}
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if (val == value) {
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rowspan++;
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}
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if (firstOccurance !== null && val == value && rowspan > 1) {
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oData.nTr.removeChild(cell);
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firstOccurance.rowSpan = rowspan;
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}
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});
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}
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oSettings.aoDrawCallback.push({ "fn": fakeRowspan, "sName": "fnFakeRowspan" });
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return this;
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};
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