Question

我有一个谷歌应用程序脚本，它通过For循环从谷歌应用程序表中提取数据，然后将每一行放入一个阵列准备导出到外部API。我的问题是脚本跳过一些条目，我无法理解为什么。

以下是整个代码：

function prepEmails() {
  var ss       = SpreadsheetApp.getActive();
  var s        = ss.getSheetByName("Emails");
  var sLastRow = s.getLastRow();
  var scriptProperties = PropertiesService.getScriptProperties();
  var logCount = scriptProperties.getProperty('EmailCount');
  Logger.log("63 logCount = "+logCount);

  var url          = "https://apitoexportto.com";
  var recordType   = "email";
  var logKey       = "mailCount"
  var activityDesc = "######"    

  if (logCount === null) {
     scriptProperties.setProperty('EmailCount', 0);
     logCount = 0;
  }

  Logger.log("68 logCount = "+logCount);
  var msgs = sLastRow - logCount;
  var arr     = new Array();

  for (var i=0; i<msgs-1; i++) {
    Logger.log("78 inside FOR loop");
    var nextRow = logCount+1; //+1 to skip header row
    var msg     = s.getRange(nextRow+1, 1, 1, 6).getValues(); //+1 to skip to next row

    var payload = {
      'type' : "TimeEntry",
      'matter_id' : msg[0][0],
      'price' : msg[0][1],
      'date' : msg[0][2],
      'note' : msg[0][3],
      'quantity' : msg[0][4],
      'activity_description_id': activityDesc
    };

    arr.push(payload);
    var logCount = parseInt(logCount)+1;
  }
  Logger.log("95 logCount = "+logCount);

  if (i>0) {  
    exportEmails(url, recordType, arr, logKey, activityDesc);
  }
}

这是执行记录：编辑：我还没有足够的代表发布图片，所以这里是成绩单的链接。 Execution Transcript我也会将其粘贴到下方。

[14-12-18 08:20:44:782 CST] Starting execution
[14-12-18 08:20:44:814 CST] SpreadsheetApp.getActive() [0 seconds]
[14-12-18 08:20:44:840 CST] Spreadsheet.getSheetByName([Emails]) [0.024 seconds]
[14-12-18 08:20:44:859 CST] Sheet.getLastRow() [0.019 seconds]
[14-12-18 08:20:44:861 CST] PropertiesService.getScriptProperties() [0 seconds]
[14-12-18 08:20:44:867 CST] (class).getProperty([EmailCount]) [0.004 seconds]
[14-12-18 08:20:44:868 CST] Logger.log([63 logCount = 98.0, []]) [0 seconds]
[14-12-18 08:20:44:868 CST] Logger.log([68 logCount = 98.0, []]) [0 seconds]
[14-12-18 08:20:44:869 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:870 CST] Sheet.getRange([98, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:913 CST] Range.getValues() [0.042 seconds]
[14-12-18 08:20:44:914 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:914 CST] Sheet.getRange([101, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:916 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:917 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:918 CST] Sheet.getRange([102, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:919 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:920 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:920 CST] Sheet.getRange([103, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:922 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:923 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:924 CST] Sheet.getRange([104, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:925 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:926 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:927 CST] Sheet.getRange([105, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:928 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:929 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:930 CST] Sheet.getRange([106, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:931 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:932 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:933 CST] Sheet.getRange([107, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:934 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:935 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:936 CST] Sheet.getRange([108, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:937 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:938 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:939 CST] Sheet.getRange([109, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:940 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:941 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:942 CST] Sheet.getRange([110, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:943 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:944 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:945 CST] Sheet.getRange([111, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:946 CST] Range.getValues() [0 seconds]
[14-12-18 08:20:44:947 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:948 CST] Sheet.getRange([112, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:949 CST] Range.getValues() [0.001 seconds]
[14-12-18 08:20:44:950 CST] Logger.log([78 inside FOR loop, []]) [0 seconds]
[14-12-18 08:20:44:951 CST] Sheet.getRange([113, 1, 1, 6]) [0 seconds]
[14-12-18 08:20:44:959 CST] Range.getValues() [0.008 seconds]
[14-12-18 08:20:44:960 CST] Logger.log([95 logCount = 112, []]) [0 seconds]
[14-12-18 08:20:44:961 CST] Logger.log([in exportEmails function, []]) [0 seconds]

正如您所看到的，它开始从第98行抓取值。这是基于logCount的预期（一个脚本属性跟踪导出的总数并根据该数字在适当的行中拾取）。但随后它跳过99和100并从第101行抓取。这些行中的数据没有什么异常。（行不是空白或类似的任何奇怪）。我确认第99行和第100行的值未通过下一个函数导出。他们刚被跳过。

我对javascript相对较新（并且完全是自学成才的），但这对我来说似乎是一个简单的循环。没有continue，没有break，没有return。我无法理解它会在哪里或为什么会像这样跳过。

有谁能告诉我为什么这些行会被跳过？

Answer 1

我会改变这一行：

var nextRow = logCount+1; //+1 to skip header row

要：

nextRow = nextRow + 1; //+1 to skip header row

并将nextRow初始值设置为For循环：

var nextRow = logCount - 1; //initialize nextRow

for (var i=0; i<msgs-1; i++) {
    Logger.log("78 inside FOR loop. Value of nextRow: " + nextRow);
    nextRow = nextRow + 1; //+1 to skip header row
    var msg     = s.getRange(nextRow+1, 1, 1, 6).getValues(); //+1 to skip to next row

    var payload = {
      'type' : "TimeEntry",
      'matter_id' : msg[0][0],
      'price' : msg[0][1],
      'date' : msg[0][2],
      'note' : msg[0][3],
      'quantity' : msg[0][4],
      'activity_description_id': activityDesc
    };

另请参阅我对Logger.log("78 inside FOR loop. Value of nextRow: " + nextRow);声明所做的更改。

用于循环跳过条目

1 个答案: