Google Sheet 脚本 - Return header 值（如果找到单元格值）
Google Sheet Script - Return header value if cell value found
提前感谢您的帮助。
我有一个 google sheet 第一行包含 header 值。我有一个脚本正在查看 sheet 的剩余部分（逐行），如果一个单元格是某种颜色，脚本会保持计数。最后，如果计数大于我在 sheet 中设置的变量，脚本将触发一封电子邮件。
我正在尝试做的是，如果脚本找到具有设置颜色的单元格，是否也捕获列 header 值？我确定我需要用 header 值创建一个数组，然后比较位置，我只是不确定如何有效地这样做。
function sendEmails() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var dataSheet = ss.getSheets()[0];
var lastRow = dataSheet.getLastRow();
var lastColumn = dataSheet.getLastColumn();
//Project Range Information
var projectRange = dataSheet.getRange(6,3,lastRow-5,lastColumn);
var projectRangeValues = projectRange.getValues()[0];
var cellColors = projectRange.getBackgrounds();
//Student Information Range
var studentRange = dataSheet.getRange(6,1,lastRow-5,lastColumn);
var studentRangeValues = studentRange.getValues();
//Pull email template information
var emailSubject = ss.getRange("Variables!B1").getValue();
var emailText = ss.getRange("Variables!B2").getValue();
var triggerValue = ss.getRange("Variables!B4").getValue();
var ccValue = ss.getRange("Variables!B5").getValue();
//Where to Start and What to Check
var colorY = ss.getRange("Variables!B6").getValue();
var count = 0;
var startRow = 6;
//Loop through sheet and pull data
for(var i = 0; i < cellColors.length; i++) {
//Pull some information from the rows to use in email
var studentName = studentRangeValues[i][0];
var studentBlogUrl = studentRangeValues[i][1];
var studentEmail = studentRangeValues[i][2];
var studentData = [studentName,studentBlogUrl];
//Loop through cell colors and count them
for(var j = 0; j < cellColors[0].length ; j++) {
if(cellColors[i][j] == colorY) {
/*This is where I feel I need to add the array comparisons to get the header values */
count = count + 1;
};//end if statement
};//end for each cell in a row
//If the count is greater than trigger, send emails
if (count >= triggerValue) {
//A call to another function that merges the information
var emailBody = fillInTemplateFromObject(emailText, studentData);
MailApp.sendEmail({
to: studentEmail,
cc: ccValue,
subject: emailSubject,
htmlBody: emailBody,
});
} else {};
//reset count to 0 before next row
count = 0;
};//end for each row
};
编辑：
我已经根据响应更新了代码的上述部分：
//Header Information
var headers = dataSheet.getRange(4,4,1,lastColumn);
var headerValues = headers.getValues();
var missingAssignments = new Array();
我在 for 循环中添加了：
//Loop through cell colors and count them
for(var j = 0; j < cellColors[0].length ; j++) {
if(cellColors[i][j] == colorY) {
//This pushes the correct information into the array that matches up with the columns with a color.
missingAssignments.push(headervalues[i][j]);
count = count + 1;
};//end if statement
};//end for each cell in a row
我 运行 遇到的问题是我收到一个错误 - 类型错误：无法从未定义中读取 属性“2”。这是由于脚本移动到下一行时 for 循环中的推送引起的。我不确定为什么会收到此错误。从我读过的其他内容来看，该数组被设置为未定义。我试图将数组设置为空并将其长度设置为 0，但它没有帮助。我不认为我理解数组的作用域。
编辑：
想通了，"i" 不应该迭代。它应该是：
missingAssignments.push(headervalues[0][j]);
第一个 for 循环结束我清除下一行的数组。
missingAssignments.length = 0;
您应该得到整个 sheet 的值。然后使用 shift 方法得到 headers。如果没有关于您的 sheet 的更多信息，我很难完全理解您的意图。让我知道是否可以提供更多信息。
function sendEmails() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var dataSheet = ss.getSheets()[0];
var lastRow = dataSheet.getLastRow();
var lastColumn = dataSheet.getLastColumn();
//below gets the whole sheet and shifts off the first row as headers
var fullSheet = dataSheet.getDataRange().getValues();
var headers = fullSheet.shift();
//then in your loops you can check against the index of the headers array
带有 Apps 脚本的电子表格真的很慢，尤其是当您有大量数据要读取时。
检查这些 tips from Apps doc:
使用批量操作
Scripts commonly need to read in data from a spreadsheet, perform
calculations, and then write out the results of the data to a
spreadsheet. Google Apps Script already has some built-in
optimization, such as using look-ahead caching to retrieve what a
script is likely to get and write caching to save what is likely to be
set.
You can write scripts to take maximum advantage of the built-in
caching, by minimizing the number of reads and writes. Alternating
read and write commands is slow. To speed up a script, read all data
into an array with one command, perform any operations on the data in
the array, and write the data out with one command.
Here's an example — an example you should not follow or use. The
Spreadsheet Fractal Art script in the Gallery (only available in the
older version of Google Sheets) uses the following code to set the
background colors of every cell in a 100 x 100 spreadsheet grid:
// DO NOT USE THIS CODE. It is an example of SLOW, INEFFICIENT code.
// FOR DEMONSTRATION ONLY
var cell = sheet.getRange('a1');
for (var y = 0; y < 100; y++) {
xcoord = xmin;
for (var x = 0; x < 100; x++) {
var c = getColor_(xcoord, ycoord);
cell.offset(y, x).setBackgroundColor(c);
xcoord += xincrement;
}
ycoord -= yincrement;
SpreadsheetApp.flush();
}
The script is inefficient: it loops through 100 rows and 100 columns,
writing consecutively to 10,000 cells. The Google Apps Script
write-back cache helps, because it forces a write-back using flush at
the end of every line. Because of the caching, there are only 100
calls to the Spreadsheet.
But the code can be made much more efficient by batching the calls.
Here's a rewrite in which the cell range is read into an array called
colors, the color assignment operation is performed on the data in the
array, and the values in the array are written out to the spreadsheet:
// OKAY TO USE THIS EXAMPLE or code based on it.
var cell = sheet.getRange('a1');
var colors = new Array(100);
for (var y = 0; y < 100; y++) {
xcoord = xmin;
colors[y] = new Array(100);
for (var x = 0; x < 100; x++) {
colors[y][x] = getColor_(xcoord, ycoord);
xcoord += xincrement;
}
ycoord -= yincrement;
}
sheet.getRange(1, 1, 100, 100).setBackgroundColors(colors);
inefficient code takes about 70 seconds to run. The efficient code
runs in just 1 second!
If you're looking at the Spreadsheet Fractal Art script (only
available in the older version of Google Sheets), please be aware that
we made a minor change to it to make this example easier to follow.
The script as published uses the setBackgroundRGB call, rather than
setBackgroundColor, which you see above. The getColor_ function was
changed as follows:
if (iteration == max_iteration) {
return '#000000';
} else {
var c = 255 - (iteration * 5);
c = Math.min(255, Math.max(0, c));
var hex = Number(c).toString(16);
while (hex.length < 2)
hex = '0' + hex;
return ('#' + hex + '3280');
}
提前感谢您的帮助。
我有一个 google sheet 第一行包含 header 值。我有一个脚本正在查看 sheet 的剩余部分（逐行），如果一个单元格是某种颜色，脚本会保持计数。最后，如果计数大于我在 sheet 中设置的变量，脚本将触发一封电子邮件。
我正在尝试做的是，如果脚本找到具有设置颜色的单元格，是否也捕获列 header 值？我确定我需要用 header 值创建一个数组，然后比较位置，我只是不确定如何有效地这样做。
function sendEmails() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var dataSheet = ss.getSheets()[0];
var lastRow = dataSheet.getLastRow();
var lastColumn = dataSheet.getLastColumn();
//Project Range Information
var projectRange = dataSheet.getRange(6,3,lastRow-5,lastColumn);
var projectRangeValues = projectRange.getValues()[0];
var cellColors = projectRange.getBackgrounds();
//Student Information Range
var studentRange = dataSheet.getRange(6,1,lastRow-5,lastColumn);
var studentRangeValues = studentRange.getValues();
//Pull email template information
var emailSubject = ss.getRange("Variables!B1").getValue();
var emailText = ss.getRange("Variables!B2").getValue();
var triggerValue = ss.getRange("Variables!B4").getValue();
var ccValue = ss.getRange("Variables!B5").getValue();
//Where to Start and What to Check
var colorY = ss.getRange("Variables!B6").getValue();
var count = 0;
var startRow = 6;
//Loop through sheet and pull data
for(var i = 0; i < cellColors.length; i++) {
//Pull some information from the rows to use in email
var studentName = studentRangeValues[i][0];
var studentBlogUrl = studentRangeValues[i][1];
var studentEmail = studentRangeValues[i][2];
var studentData = [studentName,studentBlogUrl];
//Loop through cell colors and count them
for(var j = 0; j < cellColors[0].length ; j++) {
if(cellColors[i][j] == colorY) {
/*This is where I feel I need to add the array comparisons to get the header values */
count = count + 1;
};//end if statement
};//end for each cell in a row
//If the count is greater than trigger, send emails
if (count >= triggerValue) {
//A call to another function that merges the information
var emailBody = fillInTemplateFromObject(emailText, studentData);
MailApp.sendEmail({
to: studentEmail,
cc: ccValue,
subject: emailSubject,
htmlBody: emailBody,
});
} else {};
//reset count to 0 before next row
count = 0;
};//end for each row
};
编辑： 我已经根据响应更新了代码的上述部分：
//Header Information
var headers = dataSheet.getRange(4,4,1,lastColumn);
var headerValues = headers.getValues();
var missingAssignments = new Array();
我在 for 循环中添加了：
//Loop through cell colors and count them
for(var j = 0; j < cellColors[0].length ; j++) {
if(cellColors[i][j] == colorY) {
//This pushes the correct information into the array that matches up with the columns with a color.
missingAssignments.push(headervalues[i][j]);
count = count + 1;
};//end if statement
};//end for each cell in a row
我 运行 遇到的问题是我收到一个错误 - 类型错误：无法从未定义中读取 属性“2”。这是由于脚本移动到下一行时 for 循环中的推送引起的。我不确定为什么会收到此错误。从我读过的其他内容来看，该数组被设置为未定义。我试图将数组设置为空并将其长度设置为 0，但它没有帮助。我不认为我理解数组的作用域。
编辑： 想通了，"i" 不应该迭代。它应该是：
missingAssignments.push(headervalues[0][j]);
第一个 for 循环结束我清除下一行的数组。
missingAssignments.length = 0;
您应该得到整个 sheet 的值。然后使用 shift 方法得到 headers。如果没有关于您的 sheet 的更多信息，我很难完全理解您的意图。让我知道是否可以提供更多信息。
function sendEmails() {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var dataSheet = ss.getSheets()[0];
var lastRow = dataSheet.getLastRow();
var lastColumn = dataSheet.getLastColumn();
//below gets the whole sheet and shifts off the first row as headers
var fullSheet = dataSheet.getDataRange().getValues();
var headers = fullSheet.shift();
//then in your loops you can check against the index of the headers array
带有 Apps 脚本的电子表格真的很慢，尤其是当您有大量数据要读取时。
检查这些 tips from Apps doc:
使用批量操作
Scripts commonly need to read in data from a spreadsheet, perform calculations, and then write out the results of the data to a spreadsheet. Google Apps Script already has some built-in optimization, such as using look-ahead caching to retrieve what a script is likely to get and write caching to save what is likely to be set.
You can write scripts to take maximum advantage of the built-in caching, by minimizing the number of reads and writes. Alternating read and write commands is slow. To speed up a script, read all data into an array with one command, perform any operations on the data in the array, and write the data out with one command.
Here's an example — an example you should not follow or use. The Spreadsheet Fractal Art script in the Gallery (only available in the older version of Google Sheets) uses the following code to set the background colors of every cell in a 100 x 100 spreadsheet grid:
// DO NOT USE THIS CODE. It is an example of SLOW, INEFFICIENT code.
// FOR DEMONSTRATION ONLY
var cell = sheet.getRange('a1');
for (var y = 0; y < 100; y++) {
xcoord = xmin;
for (var x = 0; x < 100; x++) {
var c = getColor_(xcoord, ycoord);
cell.offset(y, x).setBackgroundColor(c);
xcoord += xincrement;
}
ycoord -= yincrement;
SpreadsheetApp.flush();
}
The script is inefficient: it loops through 100 rows and 100 columns, writing consecutively to 10,000 cells. The Google Apps Script write-back cache helps, because it forces a write-back using flush at the end of every line. Because of the caching, there are only 100 calls to the Spreadsheet.
But the code can be made much more efficient by batching the calls. Here's a rewrite in which the cell range is read into an array called colors, the color assignment operation is performed on the data in the array, and the values in the array are written out to the spreadsheet:
// OKAY TO USE THIS EXAMPLE or code based on it.
var cell = sheet.getRange('a1');
var colors = new Array(100);
for (var y = 0; y < 100; y++) {
xcoord = xmin;
colors[y] = new Array(100);
for (var x = 0; x < 100; x++) {
colors[y][x] = getColor_(xcoord, ycoord);
xcoord += xincrement;
}
ycoord -= yincrement;
}
sheet.getRange(1, 1, 100, 100).setBackgroundColors(colors);
inefficient code takes about 70 seconds to run. The efficient code runs in just 1 second!
If you're looking at the Spreadsheet Fractal Art script (only available in the older version of Google Sheets), please be aware that we made a minor change to it to make this example easier to follow. The script as published uses the setBackgroundRGB call, rather than setBackgroundColor, which you see above. The getColor_ function was changed as follows:
if (iteration == max_iteration) {
return '#000000';
} else {
var c = 255 - (iteration * 5);
c = Math.min(255, Math.max(0, c));
var hex = Number(c).toString(16);
while (hex.length < 2)
hex = '0' + hex;
return ('#' + hex + '3280');
}