此时,我有一个脚本可以正常列出Google课堂中的班级学生,但它没有列出所有学生,只列出了前30名。我需要它列出所有学生,没有不管有多少。我现在拥有以下内容:
function listStudents() {
var s = SpreadsheetApp.getActiveSpreadsheet();
var sh = s.getSheetByName('CLASS');
var r = sh.getDataRange();
var n = r.getNumRows();
var d = r.getValues();
for (x = 0; x < n; x++) {
var i = d[x][0];
if(i == ''){ continue; } else if (i == 'D') {
var ss = SpreadsheetApp.getActiveSpreadsheet();
var sh = ss.getSheetByName('LISTSTUDENTS');
var tea = Classroom.Courses.Students.list(d[x][8]);
var t = tea.students;
var arr = [];
try {
for (i = 0; i < t.length; i++) {
var c = t[i];
var ids = c.profile;
var em = ids.emailAddress;
arr.push([em]);
}
}
catch (e) { continue; }
sh.getRange(d[x][14], d[x][15], arr.length, arr[0].length).setValues(arr);
}
}
}
答案 0 :(得分:3)
您在查询中只收到30名学生,因为您只访问结果的第一页。几乎所有&#34;高级服务&#34;函数以类似的方式处理集合,因为它们在调用中返回可变数量的项目(通常达到可在查询中指定的大小,但有限制)。这是为了确保每个使用它的人都能及时获得服务。
例如,考虑Bob(来自Accounting)。这种请求分页方式意味着他无法请求包含20,000个项目的单个响应,在此期间,其他人的服务速度较慢。但是,他可以要求接下来的100件物品,200次。虽然Bob从他最近的查询中消费了这100个项目,但其他人可以在不中断的情况下使用该服务。
要进行此设置,您需要使用保证至少执行一次的代码循环,并使用对.list()
调用的响应中包含的nextPageToken
来控制环。在Javascript / Google Apps脚本中,这可以是do .. while
循环:
// Runs once, then again until nextPageToken is missing in the response.
const roster = [],
// The optional arguments pageToken and pageSize can be independently omitted or included.
// In general, 'pageToken' is essentially required for large collections.
options = {pageSize: /* reasonable number */};
do {
// Get the next page of students for this course.
var search = Classroom.Courses.Students.list(courseId, options);
// Add this page's students to the local collection of students.
// (Could do something else with them now, too.)
if (search.students)
Array.prototype.push.apply(roster, search.students);
// Update the page for the request
options.pageToken = search.nextPageToken;
} while (options.pageToken);
Logger.log("There are %s students in class # %s", roster.length, courseId);
答案 1 :(得分:0)
对于那些为此而苦苦挣扎的人,这是代码
function listStudent() {
var pageSizeValue = 300; /*** change with numbers that you want*/
var nextPageToken = '';
var courseID = 1234; /*** change with numbers that you want*/
var ownerArray = [];
do {
var optionalArgs = {
pageSize: pageSizeValue,
pageToken: nextPageToken
};
var cls = Classroom.Courses.Students.list(courseID, optionalArgs);
var nextPageToken = cls.nextPageToken;
const ssData = cls.students.map(c => {
return [c.profile.id,c.profile.name.fullName,c.profile.emailAddress]
});
Array.prototype.push.apply(ownerArray, ssData);
} while (nextPageToken);
const ss = SpreadsheetApp.openById("1234"); // <<< UPDATE THIS
const sheet = ss.getSheetByName("Sheet1"); // <<< UPDATE THIS
sheet.getRange(2,1,ownerArray.length,ownerArray[0].length).setValues(ownerArray); // <<< UPDATE THIS
}