53 lines
2.0 KiB
JavaScript
53 lines
2.0 KiB
JavaScript
(function($) {
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/*
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* Function: fnGetColumnData
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* Purpose: Return an array of table values from a particular column.
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* Returns: array string: 1d data array
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* Inputs: object:oSettings - dataTable settings object. This is always the last argument past to the function
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* int:iColumn - the id of the column to extract the data from
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* bool:bUnique - optional - if set to false duplicated values are not filtered out
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* bool:bFiltered - optional - if set to false all the table data is used (not only the filtered)
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* bool:bIgnoreEmpty - optional - if set to false empty values are not filtered from the result array
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* Author: Benedikt Forchhammer <b.forchhammer /AT\ mind2.de>
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*/
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$.fn.dataTableExt.oApi.fnGetColumnData = function ( oSettings, iColumn, bUnique, bFiltered, bIgnoreEmpty ) {
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// check that we have a column id
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if ( typeof iColumn == "undefined" ) return new Array();
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// by default we only wany unique data
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if ( typeof bUnique == "undefined" ) bUnique = true;
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// by default we do want to only look at filtered data
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if ( typeof bFiltered == "undefined" ) bFiltered = true;
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// by default we do not wany to include empty values
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if ( typeof bIgnoreEmpty == "undefined" ) bIgnoreEmpty = true;
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// list of rows which we're going to loop through
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var aiRows;
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// use only filtered rows
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if (bFiltered == true) aiRows = oSettings.aiDisplay;
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// use all rows
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else aiRows = oSettings.aiDisplayMaster; // all row numbers
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// set up data array
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var asResultData = new Array();
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for (var i=0,c=aiRows.length; i<c; i++) {
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iRow = aiRows[i];
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var aData = this.fnGetData(iRow);
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var sValue = aData[iColumn];
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// ignore empty values?
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if (bIgnoreEmpty == true && sValue.length == 0) continue;
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// ignore unique values?
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else if (bUnique == true && jQuery.inArray(sValue, asResultData) > -1) continue;
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// else push the value onto the result data array
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else asResultData.push(sValue);
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}
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return asResultData;
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}}(jQuery)); |