如果过滤器已存在，我如何删除过滤器并在 Google 脚本中创建新过滤器

Question

我正在尝试创建一个脚本，该脚本在我的 google 工作表中的 11 个不同工作表中运行。此功能本质上只会删除当前过滤器（如果适用）并创建一个包含更新信息的过滤器。我遇到的问题是，我只在过滤器不等于 null 时才删除过滤器的逻辑似乎不起作用，因为我不断收到“异常：您无法在已经有过滤器”，但是我的filter.remove 应该已经删除了它。我已经盯着这个看了好几个小时，非常感谢一些帮助。这是我的脚本的副本，它有点长，如果可能的话我最好也想缩短它。

function Filter_All() {
///Set Variables
  var spreadsheet = SpreadsheetApp.getActive();
  var filter = spreadsheet.getActiveSheet().getFilter();
  var criteria = SpreadsheetApp.newFilterCriteria()
  var daycount = 0
  var MILLIS_PER_DAY = 1000*60*60*24*daycount
  var now = new Date();
  var filterdate = new Date(now.getTime() - MILLIS_PER_DAY);
///Select "MTD Assignments"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('MTD-Assignments'), true);
///Remove filter
    if (filter !== null) {
    filter.remove();
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Torian"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Torian'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Luke"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Luke'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Charity"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Charity'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Tenisha"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Tenisha'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Shannon"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Shannon'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Siley"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Siley'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Macheera"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Macheera'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Nia"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Nia'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Alicia"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Alicia'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Shannon/Johan/Meybeling"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Shannon/Johan/Meybeling'), false);
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
};

Answer 1

您的错误原因可能如下：

在第 4 行，您将变量 filter 的值指定为工作表“MTD-Assignments”的过滤器。在第 14 行，您从工作表中删除了该过滤器。在第 22 行，您将活动工作表设置为“Torian”，然后在第 24 行再次调用 filter.remove()。但是，即使您更改了活动工作表，这也不会将 filter 变量更改为指向新活动工作表的过滤器：filter 仍然指向“MTD 分配”的过滤器。所以第 24 行不会从工作表“Torian”中删除过滤器。为此，您首先需要通过重复该行重新分配filter 的值

 filter = spreadsheet.getActiveSheet().getFilter()

在您将活动工作表设置为“Torian”之后，在您再次调用 filter.remove() 之前。

类似这样的：

///Set Variables
  var spreadsheet = SpreadsheetApp.getActive();
  var filter = spreadsheet.getActiveSheet().getFilter();
  var criteria = SpreadsheetApp.newFilterCriteria()
  var daycount = 0
  var MILLIS_PER_DAY = 1000*60*60*24*daycount
  var now = new Date();
  var filterdate = new Date(now.getTime() - MILLIS_PER_DAY);
///Select "MTD Assignments"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('MTD-Assignments'), true);
///Remove filter
    if (filter !== null) {
    filter.remove();
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);
///Select "Torian"
  spreadsheet.setActiveSheet(spreadsheet.getSheetByName('Torian'), false);
filter = spreadsheet.getActiveSheet().getFilter();  // This is the line to be added.
///Remove filter
    if (filter !== null) {
    filter.remove();
    return;
    }
///Create Filter
  spreadsheet.getActiveSheet().getRange('A:N').createFilter();
  criteria = SpreadsheetApp.newFilterCriteria()
  .whenDateAfter(filterdate)
  .build();
  spreadsheet.getActiveSheet().getFilter().setColumnFilterCriteria(5, criteria);

对于您的其他工作表也是如此。

Answer 2

试试这个：

function Filter_All() {
  // set variables
  var spreadsheet = SpreadsheetApp.getActive();
  var daycount = 0
  var MILLIS_PER_DAY = 1000*60*60*24*daycount
  var now = new Date();
  var filterdate = new Date(now.getTime() - MILLIS_PER_DAY);
  var filterCriteria = SpreadsheetApp.newFilterCriteria()
    .whenDateAfter(filterdate)
    .build();

  // reset filter for each sheet in loop
  var sheetNamesWithFilter = ['MTD-Assignments', 'Torian']; // TODO fill with your sheet names
  for (var i = 0; i < sheetNamesWithFilter.length; i++)
  {
    var sheetName = sheetNamesWithFilter[i];

    var sheet = spreadsheet.getSheetByName(sheetName);

    // remove filter
    var filter = sheet.getFilter();
    if (filter !== null)
    {
      filter.remove();
    }

    // create filter
    sheet.getRange('A:N').createFilter().setColumnFilterCriteria(5, filterCriteria);
  }
}

基本上，要让脚本正常工作，您只需使用 loop 并在循环中为每个工作表应用相同的过滤器更改。它被认为是重复相同命令的最佳实践，当您错误地忘记为下一次迭代更新 filter 变量时，它还可以帮助您摆脱意外错误。

希望这会有所帮助。