相同的邮件重复3次

时间:2015-08-27 18:47:48

标签: javascript google-apps-script google-sheets google-docs

我的代码如下,第一列是根据日期在google doc中打印出来的。不幸的是,这会重复并打印三次。

function saveAsDOC() {
  var fileName = "Announcements Test File";
  var doc = DocumentApp.create(fileName);

  // Get the range in the spreadsheet
  var ws = SpreadsheetApp.getActiveSpreadsheet().getDataRange();
  try {
    var data = ws.getValues();

    // Announcements loop
    if (data.length > 1) { // Make sure data is longer than one character
      for (var row = 1; row < data.length; row++) {
        if(new Date(data[row][2]) <= new Date()) { // Check the date
          for (var col = 1; col < data[row].length; col++) {
            if(data[row][col]!=""){ // Make sure the data is not empty
              doc.appendParagraph(data[row][1]); // Append announcement
              doc.appendParagraph("") // Line break between announcements
            }
          }
        }
      }
    }
   }

  catch(err) {
    Logger.log(err);
    Browser.msgBox(err);
  }
}

源数据位于Google电子表格中,有三列“公告”,“开始日期”和“结束日期”。我想编制“今天”的公告列表(即今天的日期介于开始和结束日期之间,包括在内)。

                A                     B             C
1 | Announcement               | Start date  | End date    |
2 | You SHOULD see this.       | 1 Jan 2015  | 31 Dec 2015 |
3 | You SHOULD NOT see this.   | 1 Jan 2015  | 1 Jan 2015  |
4 | You SHOULD ALSO see this.  | 1 Jan 2015  | 31 Dec 2015 |
5 | You SHOULD NOT see this.   | 31 Dec 2015 | 31 Dec 2015 |

以下是我的输出示例: output

我的代码正在跳过不应该看到的公告,这很好。但它多次打印预期的公告。我该如何解决这个问题?

1 个答案:

答案 0 :(得分:0)

这是代码的最小版本,用于演示问题,并添加了评论说明发生了什么:

function announcements() {
  // Get the range in the spreadsheet
  var ws = SpreadsheetApp.getActiveSpreadsheet().getDataRange();
  var data = ws.getValues();
  var results = [];

  if (data.length > 1) {                                    // Make sure data is longer than one ROW (not character)
    for (var row = 1; row < data.length; row++) {           // Skips first row, then loop over the rest is that what you want?
      if(new Date(data[row][2]) <= new Date()) {            // Check the date, [2] is the third column.
        for (var col = 1; col < data[row].length; col++) {  // Loop over all columns except the first one
          if(data[row][col]!=""){                           // Make sure the data is not empty
            results.push(data[row][1]);                     // Append [row][1]; **** Same value
          }
        }
      }
    }
  }

  Logger.log( JSON.stringify( results ) );
}

你在这里遇到了一些问题:

  • if (data.length > 1)会检查您是否有多个数据,这与您的评论不匹配。确保它是你想要做的。
  • for (var row = 1; etc.遍历所有行,但会跳过第一行。也许这就是你想要的,但是人们遇到的一个常见问题是当你使用Google的Spreadsheet方法时,电子表格行(和列)从1开始编号,但在JavaScript数组中从0开始编号。 data的内容是一个JavaScript数组,因此它从0开始。(在chat中讨论过,这是理解的,所以没有问题。)
  • if(new Date(data[row][2]) <= new Date())仅检查“结束日期”是否为今天的日期。您还需要检查“开始日期”。 (在聊天中讨论。)
  • for (var col = 1; col < data[row].length; col++)遍历所有列(每行)。然后if(data[row][col]!="")检查该单元格是否为空白,results.push(data[row][1])附加“公告”。 这就是为什么你会看到重复的公告。根据你的问题陈述,没有必要在整行中循环,你只想检查每一行是否有公告。

更新了代码

function announcements() {
  // Get the range in the spreadsheet
  var ws = SpreadsheetApp.getActiveSpreadsheet().getDataRange();
  var data = ws.getValues();

  var announcementCol = 1,    // "constants" for column numbers
      dateCol = 2;
  var results = [];           // Array to hold announcements for today

  if (data.length > 1) {
    // Loop over rows that contain announcements
    for (var row = 1; row < data.length; row++) {
      // Check that today is a date that the announcement should be included.
      if(new Date(data[row][1]) <= new Date() && new Date(data[row][2]) >= new Date() ) {
        // Is there an announcement in this row?
        if(data[row][announcementCol]!=""){
          // Add this announcement to results
          results.push(data[row][announcementCol]);
        }
      }
    }
  }

  // Show results in log
  Logger.log( JSON.stringify( results ) );
}