sas-visualanalytics-thirdpartyvisualizations/samples/export2CSV.html at master · sassoftware/sas-visualanalytics-thirdpartyvisualizations · GitHub

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<!DOCTYPE html>
<!--
Copyright 2020 SAS Institute Inc.

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
-->
<html>

<head>
	<script type="text/javascript" src="https://www.gstatic.com/charts/loader.js"></script>
	<script type="text/javascript" src="../util/messagingUtil.js"></script>
	<script type="text/javascript" src="../util/contentUtil.js"></script>

	<style>
		html {
			overflow: hidden;
		}

		html,
		body,
		div {
			width: 100%;
			height: 100%;
			margin: 0;
			padding: 0;
		}

		div {
			position: relative;
		}

		.gen_btn {
			padding: 8px;
			background-color: #0378cd;
			color: white;
			font-family: arial;
			font-size: 13px;
			border: 0px;
			border-radius: 4px;
		}

		.gen_btn:hover {
			background-color: #0494fb;
			cursor: pointer;
		}
	</style>

	<script type="text/javascript">
		"use strict";

		var _resultData = null;
		var _resultName = null;
		var _selections = null;
		var _data = null;

		// This is used to take advantage of Google's NumberFormat function
		google.charts.load('current', { 'packages': ['corechart'] });

		va.messagingUtil.setOnDataReceivedCallback(onDataReceived);


		// Retrieve data and store message received from VA
		function onDataReceived(resultData) {
			_data = null;
			_resultData = resultData;
			_resultName = resultData.resultName;

			if (!_resultData.data.length) {
				va.messagingUtil.postInstructionalMessage(
					_resultName,
					"Optional VA parameters:\n" +
					"(1) _downloaded_file_name (no extension, default: DownloadedFromVA)\n" +
					"(2) _show_column_labels (YES/NO, default: YES)\n" +
					"(3) _transpose_data (YES/NO, default: NO)"
				);
				return;
			}

		}


		function treatMissingValues(data, columns) {
			for (var c = 0; c < columns.length; c++) {
				var colInfo = columns[c];
				if (colInfo.type == "string") {
					for (var r = 0; r < data.length; r++) {
						if (data[r][c] == "(missing)") data[r][c] = "";
					}
				}
			}
		}


		// Returns JSON:
		// [{<col0-label>:<col0-row0>, ..., <colC-label>:<colC-row0>}, ..., {<col0-label>:<col0-rowR>, ..., <colC-label>:<colC-rowR>}]
		function createFormattedJSON(data, columns) {
			var dataArray = [];
			for (var r = 0; r < data.length; r++) {
				dataArray.push({});
				for (var c = 0; c < data[r].length; c++) {
					var formatter = getNumberFormatter(columns[c]);
					dataArray[r][columns[c].label] = (formatter ? formatter.formatValue(data[r][c]) : data[r][c]);
				}
			}
			return dataArray;
		}


		function getNumberFormatter(colInfo) {
			var formatter = null;
			if (colInfo.format) {
				if (colInfo.format.name == "DOLLAR") {
					formatter = new google.visualization.NumberFormat({
						prefix: '$',
						fractionDigits: colInfo.format.precision
					});
				}
				else if (colInfo.format.name == "COMMA") {
					formatter = new google.visualization.NumberFormat({
						fractionDigits: colInfo.format.precision
					});
				}
				else if (colInfo.format.name == "F") {
					formatter = new google.visualization.NumberFormat({
						groupingSymbol: '',
						fractionDigits: colInfo.format.precision
					});
				}
				else if (colInfo.format.name == "PERCENT") {
					var pattern = '#,###';
					if (colInfo.format.precision > 0) {
						pattern += ".";
						for (var j = 0; j < colInfo.format.precision; j++)
							pattern += "#";
					}

					pattern += "%";
					formatter = new google.visualization.NumberFormat({
						pattern: pattern
					});
				}
			}
			return formatter;
		}


		// Code below based on: http://jsfiddle.net/hybrid13i/JXrwM/
		function JSONToCSV(JSONData, ShowHeader, Transpose) {
			// If JSONData is not an object then JSON.parse will parse the JSON string in an Object
			var arrData = typeof JSONData != 'object' ? JSON.parse(JSONData) : JSONData;

			var CSV = '';

			if (Transpose) {
				// [{<col0-label>:<col0-row0>, ..., <colC-label>:<colC-row0>}, ..., {<col0-label>:<col0-rowR>, ..., <colC-label>:<colC-rowR>}]
				// 1st loop is to extract each column
				for (var c = 0; c < Object.keys(arrData[0]).length; c++) {
					var row = "";

					var colName = Object.keys(arrData[0])[c];
					if (ShowHeader) {
						row += '"' + colName + '",';
					}

					// 2nd loop will extract each row value and convert it to comma-seprated strings
					for (var r = 0; r < arrData.length; r++) {
						row += '"' + arrData[r][colName] + '",';
					}
					// remove the extra comma at the end
					row = row.slice(0, - 1);

					// add a line break after each row
					CSV += row + '\r\n';
				}
			}
			else {
				// This condition will generate the Label/Header
				if (ShowHeader) {
					var row = "";

					// This loop will extract the column labels (keys) from 1st object of the array
					for (var key in arrData[0]) {

						//Now convert each value to string and comma-seprated
						row += '"' + key + '",';
					}
					// remove the extra comma at the end
					row = row.slice(0, -1);

					// append Label row with line break
					CSV += row + '\r\n';
				}

				// 1st loop is to extract each row
				for (var i = 0; i < arrData.length; i++) {
					var row = "";

					// 2nd loop will extract each column value and convert to comma-seprated strings
					for (var key in arrData[i]) {
						row += '"' + arrData[i][key] + '",';
					}
					// remove the extra comma at the end
					row = row.slice(0, - 1);

					// add a line break after each row
					CSV += row + '\r\n';
				}
			}

			return CSV;
		}


		function DownloadCSV(CSV, FileName) {
			// Set Report title in first row or line

			// Generate a file name
			var fileName = "MyReport";

			if (FileName != "") {
				// This will remove the blank-spaces from the title and replace it with an underscore
				fileName = FileName.replace(/ /g, "_");
			}

			// Initialize file format you want csv or xls
			var uri = 'data:text/csv;charset=utf-8,' + escape(CSV);
			//var uri = 'data:application/octet-stream,' + escape(CSV); // arbitrary binary data

			// Now the little tricky part.
			// you can use either>> window.open(uri);
			// but this will not work in some browsers
			// or you will not get the correct file extension

			//this trick will generate a temp/hidden <a /> tag and programmatically click on the link
			var link = document.createElement("a");
			link.href = uri;

			//set the visibility hidden so it will not affect on your web-layout
			link.style = "visibility:hidden";
			link.download = fileName + ".csv";

			//this was not necessary before, but for some reason download does not work without it now
			var txt = document.createTextNode("Download");
			link.appendChild(txt);

			//this part will append the anchor tag and remove it after automatic click
			document.body.appendChild(link);
			link.click();
			document.body.removeChild(link);
		}


		function download() {
			_selections = va.contentUtil.initializeSelections(_resultData); // needed to remove eventual brush columns

			// Process result data: leave data in the right format for downloading
			treatMissingValues(_resultData.data, _resultData.columns);

			// Two options: transposed or not - this could be a parameter to the DDC
			// Uncomment the desired option
			//
			// Transposed option:
			// data = createTransposedFormattedJSON(_resultData.data, _resultData.columns);
			// console.log("formatted and transposed:", data);
			//
			// Not transposed option (default tabular view):
			var data = createFormattedJSON(_resultData.data, _resultData.columns);
			console.log("formatted (not transposed):", data);

			if (!data.length)
				return;

			var vaParameters = va.contentUtil.getVAParameters(_resultData);
			var fileName = vaParameters._downloaded_file_name;
			var showHeader = vaParameters._show_column_labels;
			var transpose = vaParameters._transpose_data;

			if (!fileName) fileName = "DownloadedFromVA";
			if (!showHeader) showHeader = "YES";
			showHeader = (showHeader == 'YES');
			if (!transpose) transpose = "NO";
			transpose = (transpose == 'YES');

			var csv = JSONToCSV(data, showHeader, transpose);

			console.log("DOWNLOADING...");
			DownloadCSV(csv, fileName);
			console.log("DONE!");
		}
	</script>
</head>

<body>
	<div>
		<button class='gen_btn' onclick="download()">Download file</button>
	</div>
</body>

</html>