Function _fnAjaxUpdateDraw

external/.datatables.js:3956–3988

* Data the data from the server (nuking the old) and redraw the table * @param {object} oSettings dataTables settings object * @param {object} json json data return from the server. * @param {string} json.sEcho Tracking flag for DataTables to match requests * @param {int} json.iTotalReco

(settings, json)

	 *  @memberof DataTable#oApi
	 */
	function _fnAjaxUpdateDraw(settings, json) {
		var data = _fnAjaxDataSrc(settings, json)
		var draw = _fnAjaxDataSrcParam(settings, "draw", json)
		var recordsTotal = _fnAjaxDataSrcParam(settings, "recordsTotal", json)
		var recordsFiltered = _fnAjaxDataSrcParam(settings, "recordsFiltered", json)

		if (draw !== undefined) {
			// Protect against out of sequence returns
			if (draw * 1 < settings.iDraw) {
				return
			}
			settings.iDraw = draw * 1
		}

		// No data in returned object, so rather than an array, we show an empty table
		if (!data) {
			data = []
		}

		_fnClearTable(settings)
		settings._iRecordsTotal = parseInt(recordsTotal, 10)
		settings._iRecordsDisplay = parseInt(recordsFiltered, 10)

		for (var i = 0, ien = data.length; i < ien; i++) {
			_fnAddData(settings, data[i])
		}
		settings.aiDisplay = settings.aiDisplayMaster.slice()

		_fnColumnTypes(settings)
		_fnDraw(settings, true)
		_fnInitComplete(settings)
		_fnProcessingDisplay(settings, false)
	}

	/**
	 * Get the data from the JSON data source to use for drawing a table. Using