【发布时间】:2019-06-03 23:40:17
【问题描述】:
这是我在自动化方面的一个小项目。我定期检索电子邮件报告 CSV 附件,并使用 Google App Script 将其直接转换为 Google Sheet。但是有一个报告进来,太大了,不适合 blob 限制大小(50mb),会出现执行错误。
因此,下载它并将其存储在谷歌驱动器中不是一种选择。
我尝试存储 contentText 并使用我在网上找到的这个 CSVToArray 函数
function CSVToArray( strData, strDelimiter ) {
// Check to see if the delimiter is defined. If not,
// then default to COMMA.
strDelimiter = (strDelimiter || ",");
// Create a regular expression to parse the CSV values.
var objPattern = new RegExp(
(
// Delimiters.
"(\\" + strDelimiter + "|\\r?\\n|\\r|^)" +
// Quoted fields.
"(?:\"([^\"]*(?:\"\"[^\"]*)*)\"|" +
// Standard fields.
"([^\"\\" + strDelimiter + "\\r\\n]*))"
),
"gi"
);
// Create an array to hold our data. Give the array
// a default empty first row.
var arrData = [[]];
// Create an array to hold our individual pattern
// matching groups.
var arrMatches = null;
// Keep looping over the regular expression matches
// until we can no longer find a match.
while (arrMatches = objPattern.exec( strData )){
// Get the delimiter that was found.
var strMatchedDelimiter = arrMatches[ 1 ];
// Check to see if the given delimiter has a length
// (is not the start of string) and if it matches
// field delimiter. If id does not, then we know
// that this delimiter is a row delimiter.
if (
strMatchedDelimiter.length &&
(strMatchedDelimiter != strDelimiter)
){
// Since we have reached a new row of data,
// add an empty row to our data array.
arrData.push( [] );
}
// Now that we have our delimiter out of the way,
// let's check to see which kind of value we
// captured (quoted or unquoted).
if (arrMatches[ 2 ]){
// We found a quoted value. When we capture
// this value, unescape any double quotes.
var strMatchedValue = arrMatches[ 2 ].replace(
new RegExp( "\"\"", "g" ),
"\""
);
} else {
// We found a non-quoted value.
var strMatchedValue = arrMatches[ 3 ];
}
// Now that we have our value string, let's add
// it to the data array.
arrData[ arrData.length - 1 ].push( strMatchedValue );
}
// Return the parsed data.
Logger.log(arrData);
return( arrData );
};
function GetCSVFromLink(link){
var urlData = UrlFetchApp.fetch(link);
var stringData = urlData.getContentText();
//
//All the folder creation etc is here
//
var CSVArray = CSVToArray(stringData);
var newsheet = ss.insertSheet("NewReport");
for ( var i =0, lenCsv=CSVArray.length; i<lenCsv;i++)
{
newsheet.getRange(i+1,1,1,CSVArray[i].length).setValues(new Array(CSVArray[i]));
}
最后,我收到了一个达到最大执行时间。这个特定的报告有 30k 行,因此即使是 30 分钟的长执行时间也无法完成。但是,这适用于其他较小的 csv 文件。(但是当我可以通过 Drive API 直接转换为 Google 表格时,我不想这样做)
我还发现,如果我将它从 CSV 转换为 xlsm,它会更小,并且在那里转换会更容易。但问题是我无法将 CSV 文件自动下载到我的云端硬盘,而且我不知道如何使用 App 脚本将 CSV 转换为 xlsm。
还有其他解决方法吗?或者你们认为有没有其他方法可行?
【问题讨论】:
标签: google-apps-script google-sheets google-drive-api csv-import