qp-es-ui/src/util/exportToExcel.js

Query Park UI Components for React

const dataToExcel = async (data) => {
  // console.log('HERE')
  let success = false
  var uri = 'data:application/vnd.ms-excel;base64,'
  var tmplWorkbookXML = '<?xml version="1.0"?><?mso-application progid="Excel.Sheet"?><Workbook xmlns="urn:schemas-microsoft-com:office:spreadsheet" xmlns:ss="urn:schemas-microsoft-com:office:spreadsheet">' +
      '<DocumentProperties xmlns="urn:schemas-microsoft-com:office:office"><Author>Axel Richter</Author><Created>{created}</Created></DocumentProperties>' +
      '<Styles>' +
      '<Style ss:ID="Currency"><NumberFormat ss:Format="Currency"></NumberFormat></Style>' +
      '<Style ss:ID="Date"><NumberFormat ss:Format="Medium Date"></NumberFormat></Style>' +
      '</Styles>' +
      '{worksheets}</Workbook>'
  var tmplWorksheetXML = '<Worksheet ss:Name="{nameWS}"><Table>{rows}</Table></Worksheet>'
  var tmplCellXML = '<Cell{attributeStyleID}{attributeFormula}><Data ss:Type="{nameType}">{data}</Data></Cell>'
  var base64 = function (s) { return window.btoa(unescape(encodeURIComponent(s))) }
  var format = function (s, c) { return s.replace(/{(\w+)}/g, function (m, p) { return c[p] }) }
  var ctx = ''
  var workbookXML = ''
  var worksheetsXML = ''
  var rowsXML = ''

  for (let i = 0; i < data.length; i++) {
    // if (!tables[i].nodeType) tables[i] = document.getElementById(tables[i]);
    for (var j = 0; j < data[i].value.length; j++) {
      rowsXML += '<Row>'
      for (let k in data[i].value[j]) {
        // var dataType = tables[i].rows[j].cells[k].getAttribute("data-type");
        // var dataStyle = tables[i].rows[j].cells[k].getAttribute("data-style");
        // var dataValue = tables[i].rows[j].cells[k].getAttribute("data-value");
        let dataValue = data[i].value[j][k]
        // var dataFormula = tables[i].rows[j].cells[k].getAttribute("data-formula");
        // dataFormula = (dataFormula)?dataFormula:(appname=='Calc' && dataType=='DateTime')?dataValue:null;
        ctx = { attributeStyleID: '',
          nameType: 'String',
          data: dataValue,
          attributeFormula: ''
        }
        rowsXML += format(tmplCellXML, ctx)
      }
      rowsXML += '</Row>'
    }
    ctx = { rows: rowsXML, nameWS: data[i].key }
    worksheetsXML += format(tmplWorksheetXML, ctx)
    rowsXML = ''
  }

  ctx = { created: (new Date()).getTime(), worksheets: worksheetsXML }
  workbookXML = format(tmplWorkbookXML, ctx)

  // console.log(workbookXML);

  var link = document.createElement('A')
  link.href = uri + base64(workbookXML)
  link.download = 'querypark.xls'
  link.target = '_blank'
  document.body.appendChild(link)
  link.click()
  document.body.removeChild(link)
  if (link) {
    success = true
    return success
  }
}

export default dataToExcel