Mengimpor data CSV ke {i>spreadsheet

Tingkat coding: Menengah
Durasi: 15 menit
Jenis project: Otomatisasi dengan pemicu berbasis waktu

Tujuan

  • Pahami fungsi solusi.
  • Pahami fungsi layanan Apps Script dalam solusi.
  • Siapkan skrip.
  • Jalankan skrip.

Tentang solusi ini

Mengimpor data dari file CSV ke dalam satu spreadsheet Google Spreadsheet secara otomatis. Jika Anda menggunakan beberapa file CSV yang memiliki struktur serupa, Anda dapat menggunakan solusi ini untuk memusatkan data di Spreadsheet.

Screenshot folder dan file Spreadsheet di Drive

Cara kerjanya

Skrip berjalan setiap hari pada pemicu berbasis waktu. Fungsi ini melakukan iterasi melalui file CSV di folder yang ditetapkan dan menambahkan data dari setiap file ke spreadsheet. Secara default, skrip akan menghapus baris header dari setiap set data CSV sebelum menambahkan data ke baris terakhir sheet. Skrip ini mengirim email ringkasan yang mencantumkan file yang diimpor dan memindahkan file ke folder lain untuk mencegah pemrosesan duplikat.

Skrip ini juga menyertakan fungsi yang menyiapkan contoh file CSV untuk mendemonstrasikan solusi ini.

Layanan Apps Script

Solusi ini menggunakan layanan berikut:

  • Layanan skrip–Membuat pemicu berbasis waktu.
  • Layanan Drive–Mendapatkan folder yang digunakan skrip untuk menyimpan file CSV yang diproses dan belum diproses, serta membuatnya jika tidak ada. Mendapatkan URL project Apps Script untuk disertakan dalam email ringkasan.
  • Layanan spreadsheet–Mendapatkan spreadsheet tempat skrip menambahkan data dari setiap file CSV.
  • Layanan dasar–Menggunakan class Session untuk mendapatkan alamat email pengguna dan zona waktu skrip.
    • Pengguna didasarkan pada siapa yang menjalankan skrip. Karena skrip berjalan pada pemicu berbasis waktu, pengguna ditentukan sebagai orang yang membuat pemicu.
    • Skrip menggunakan zona waktu untuk menambahkan tanggal dan waktu saat skrip dijalankan ke email ringkasan.
  • Layanan utilitas–Menguraikan setiap file CSV menjadi array. Memformat tanggal yang ditambahkan skrip ke email ringkasan.
  • Layanan email–Mengirim email ringkasan setelah data dari file CSV diimpor ke spreadsheet.

Prasyarat

Untuk menggunakan contoh ini, Anda memerlukan prasyarat berikut:

  • Akun Google (akun Google Workspace mungkin memerlukan persetujuan administrator).
  • Browser web dengan akses ke internet.

Menyiapkan skrip

  1. Klik tombol berikut untuk membuka project Apps Script Impor data CSV.
    Membuka project
  2. Klik Ringkasan .
  3. Di halaman ringkasan, klik Buat salinan Ikon untuk membuat salinan.

Jalankan skrip:

  1. Di project Apps Script yang disalin, buka file SetupSample.gs.
  2. Di menu dropdown fungsi, pilih setupSample, lalu klik Run. Fungsi ini membuat pemicu berbasis waktu, file CSV, spreadsheet, dan folder yang digunakan skrip agar berhasil berjalan.

  3. Saat diminta, izinkan skrip. Jika layar izin OAuth menampilkan peringatan, Aplikasi ini tidak diverifikasi, lanjutkan dengan memilih Lanjutan > Buka {Project Name} (tidak aman).

  4. Untuk melihat pemicu berbasis waktu setelah penyiapan selesai, klik Pemicu .

  5. Untuk melihat file yang dibuat, buka folder [Apps Script sample] Import CSVs di Google Drive.

  6. Beralih kembali ke project Apps Script dan di editor, buka file Code.gs.

  7. Di dropdown fungsi, pilih updateApplicationSheet, lalu klik Run.

  8. Untuk melihat email ringkasan yang berisi link ke spreadsheet dengan data yang diimpor, periksa kotak masuk email Anda.

(Opsional) Mereset solusi

Anda dapat mereset solusi untuk memperbaruinya dengan data Anda sendiri atau mencoba kembali demo.

  1. Di project Apps Script, buka file SetupSample.gs.
  2. Di dropdown fungsi, pilih removeSample, lalu klik Run. Fungsi ini menghapus pemicu, file, dan folder yang dibuat di bagian sebelumnya.

Meninjau kode

Untuk meninjau kode Apps Script untuk solusi ini, klik Lihat kode sumber di bawah:

Melihat kode sumber

Code.gs

solutions/automations/import-csv-sheets/Code.js
// To learn more about this script, refer to the documentation: 
// https://developers.google.com/apps-script/samples/automations/import-csv-sheets

/*
Copyright 2022 Google LLC

Licensed under the Apache License, Version 2.0 (the "License");
you may not use this file except in compliance with the License.
You may obtain a copy of the License at

    https://www.apache.org/licenses/LICENSE-2.0

Unless required by applicable law or agreed to in writing, software
distributed under the License is distributed on an "AS IS" BASIS,
WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
See the License for the specific language governing permissions and
limitations under the License.
*/

/** 
 * This file contains the main functions that import data from CSV files into a Google Spreadsheet.
 */

// Application constants
const APP_TITLE = 'Trigger-driven CSV import [App Script Sample]'; // Application name
const APP_FOLDER = '[App Script sample] Import CSVs'; // Application primary folder
const SOURCE_FOLDER = 'Inbound CSV Files'; // Folder for the update files.
const PROCESSED_FOLDER = 'Processed CSV Files'; // Folder to hold processed files.
const SHEET_REPORT_NAME = 'Import CSVs'; // Name of destination spreadsheet.

// Application settings
const CSV_HEADER_EXIST = true;  // Set to true if CSV files have a header row, false if not.
const HANDLER_FUNCTION = 'updateApplicationSheet'; // Function called by installable trigger to run data processing.

/**
 * Installs a time-driven trigger that runs daily to import CSVs into the main application spreadsheet.
 * Prior to creating a new instance, removes any existing triggers to avoid duplication.
 * 
 * Called by setupSample() or run directly setting up the application.
 */
function installTrigger() {

  // Checks for an existing trigger to avoid creating duplicate instances.
  // Removes existing if found.
  const projectTriggers = ScriptApp.getProjectTriggers();
  for (var i = 0; i < projectTriggers.length; i++) {
    if (projectTriggers[i].getHandlerFunction() == HANDLER_FUNCTION) {
      console.log(`Existing trigger with Handler Function of '${HANDLER_FUNCTION}' removed.`);
      ScriptApp.deleteTrigger(projectTriggers[i]);
    }
  }
  // Creates the new trigger.
  let newTrigger = ScriptApp.newTrigger(HANDLER_FUNCTION)
    .timeBased()
    .atHour(23)   // Runs at 11 PM in the time zone of this script.
    .everyDays(1) // Runs once per day.
    .create();
  console.log(`New trigger with Handler Function of '${HANDLER_FUNCTION}' created.`);
}

/**
 * Handler function called by the trigger created with the "installTrigger" function.
 * Run this directly to execute the entire automation process of the application with a trigger.
 * 
 * Process: Iterates through CSV files located in the source folder (SOURCE_FOLDER),
 * and appends them to the end of destination spreadsheet (SHEET_REPORT_NAME).
 * Successfully processed CSV files are moved to the processed folder (PROCESSED_FOLDER) to avoid duplication.
 * Sends summary email with status of the import.
 */
function updateApplicationSheet() {

  // Gets application & supporting folders.
  const folderAppPrimary = getApplicationFolder_(APP_FOLDER);
  const folderSource = getFolder_(SOURCE_FOLDER);
  const folderProcessed = getFolder_(PROCESSED_FOLDER);

  // Gets the application's destination spreadsheet {Spreadsheet object}
  let objSpreadSheet = getSpreadSheet_(SHEET_REPORT_NAME, folderAppPrimary)

  // Creates arrays to track every CSV file, categorized as processed sucessfully or not.
  let filesProcessed = [];
  let filesNotProcessed = [];

  // Gets all CSV files found in the source folder.
  let cvsFiles = folderSource.getFilesByType(MimeType.CSV);

  // Iterates through each CSV file.
  while (cvsFiles.hasNext()) {

    let csvFile = cvsFiles.next();
    let isSuccess;

    // Appends the unprocessed CSV data into the Google Sheets spreadsheet.
    isSuccess = processCsv_(objSpreadSheet, csvFile);

    if (isSuccess) {
      // Moves the processed file to the processed folder to prevent future duplicate data imports.
      csvFile.moveTo(folderProcessed);
      // Logs the successfully processed file to the filesProcessed array.
      filesProcessed.push(csvFile.getName());
      console.log(`Successfully processed: ${csvFile.getName()}`);

    } else if (!isSuccess) {
      // Doesn't move the unsuccesfully processed file so that it can be corrected and reprocessed later.
      // Logs the unsuccessfully processed file to the filesNotProcessed array.
      filesNotProcessed.push(csvFile.getName());
      console.log(`Not processed: ${csvFile.getName()}`);
    }
  }

  // Prepares summary email.
  // Gets variables to link to this Apps Script project.
  const scriptId = ScriptApp.getScriptId();
  const scriptUrl = DriveApp.getFileById(scriptId).getUrl();
  const scriptName = DriveApp.getFileById(scriptId).getName();

  // Gets variables to link to the main application spreadsheet.
  const sheetUrl = objSpreadSheet.getUrl()
  const sheetName = objSpreadSheet.getName()   

  // Gets user email and timestamp.
  const emailTo = Session.getEffectiveUser().getEmail();
  const timestamp = Utilities.formatDate(new Date(), Session.getScriptTimeZone(), "yyyy-MM-dd HH:mm:ss zzzz");

  // Prepares lists and counts of processed CSV files.
  let processedList = "";
  const processedCount = filesProcessed.length
  for (const processed of filesProcessed) {
    processedList += processed + '<br>'
  };

  const unProcessedCount = filesNotProcessed.length
  let unProcessedList = "";
  for (const unProcessed of filesNotProcessed) {
    unProcessedList += unProcessed + '\n'
  };

  // Assembles email body as html.
  const eMailBody = `${APP_TITLE} ran an automated process at ${timestamp}.<br><br>` +
    `<b>Files successfully updated:</b> ${processedCount}<br>` +
    `${processedList}<br>` +
    `<b>Files not updated:</b> ${unProcessedCount}<br>` +
    `${unProcessedList}<br>` +
    `<br>View all updates in the Google Sheets spreadsheet ` +
    `<b><a href= "${sheetUrl}" target=\"_blank\">${sheetName}</a></b>.<br>` +
    `<br>*************<br>` +
    `<br>This email was generated by Google Apps Script. ` +
    `To learn more about this application or make changes, open the script project below: <br>` +
    `<a href= "${scriptUrl}" target=\"_blank\">${scriptName}</a>`

  MailApp.sendEmail({
    to: emailTo,
    subject: `Automated email from ${APP_TITLE}`,
    htmlBody: eMailBody
  });
  console.log(`Email sent to ${emailTo}`);
}

/**
 * Parses CSV data into an array and appends it after the last row in the destination spreadsheet.
 * 
 * @return {boolean} true if the update is successful, false if unexpected errors occur.
 */
function processCsv_(objSpreadSheet, csvFile) {

  try {
    // Gets the first sheet of the destination spreadsheet.
    let sheet = objSpreadSheet.getSheets()[0];

    // Parses CSV file into data array.
    let data = Utilities.parseCsv(csvFile.getBlob().getDataAsString());

    // Omits header row if application variable CSV_HEADER_EXIST is set to 'true'.
    if (CSV_HEADER_EXIST) {
      data.splice(0, 1);
    }
    // Gets the row and column coordinates for next available range in the spreadsheet. 
    let startRow = sheet.getLastRow() + 1;
    let startCol = 1;
    // Determines the incoming data size.
    let numRows = data.length;
    let numColumns = data[0].length;

    // Appends data into the sheet.
    sheet.getRange(startRow, startCol, numRows, numColumns).setValues(data);
    return true; // Success.

  } catch {
    return false; // Failure. Checks for CSV data file error.
  }
}

SampleData.gs

solutions/automations/import-csv-sheets/SampleData.js
/**
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/** 
 * This file contains functions to access headings and data for sample files.
 * 
 * Sample data is stored in the variable SAMPLE_DATA.
 */

// Fictitious sample data.
const SAMPLE_DATA = {
  "headings": [
    "PropertyName",
    "LeaseID",
    "LeaseLocation",
    "OwnerName",
    "SquareFootage",
    "RenewDate",
    "LastAmount",
    "LastPaymentDate",
    "Revenue"
  ],
  "csvFiles": [
    {
      "name": "Sample One.CSV",
      "rows": [
        {
          "PropertyName": "The Modern Building",
          "LeaseID": "271312",
          "LeaseLocation": "Mountain View CA 94045",
          "OwnerName": "Yuri",
          "SquareFootage": "17500",
          "RenewDate": "12/15/2022",
          "LastAmount": "100000",
          "LastPaymentDate": "3/01/2022",
          "Revenue": "12000"
        },
        {
          "PropertyName": "Garage @ 45",
          "LeaseID": "271320",
          "LeaseLocation": "Mountain View CA 94045",
          "OwnerName": "Luka",
          "SquareFootage": "1000",
          "RenewDate": "6/2/2022",
          "LastAmount": "50000",
          "LastPaymentDate": "4/01/2022",
          "Revenue": "20000"
        },
        {
          "PropertyName": "Office Park Deluxe",
          "LeaseID": "271301",
          "LeaseLocation": "Mountain View CA 94045",
          "OwnerName": "Sasha",
          "SquareFootage": "5000",
          "RenewDate": "6/2/2022",
          "LastAmount": "25000",
          "LastPaymentDate": "4/01/2022",
          "Revenue": "1200"
        }
      ]
    },
    {
      "name": "Sample Two.CSV",
      "rows": [
        {
          "PropertyName": "Tours Jumelles Minuscules",
          "LeaseID": "271260",
          "LeaseLocation": "8 Rue du Nom Fictif 341 Paris",
          "OwnerName": "Lucian",
          "SquareFootage": "1000000",
          "RenewDate": "7/14/2022",
          "LastAmount": "1250000",
          "LastPaymentDate": "5/01/2022",
          "Revenue": "77777"
        },
        {
          "PropertyName": "Barraca da Praia",
          "LeaseID": "271281",
          "LeaseLocation": "Avenida da Pastelaria 1903 Lisbon 1229-076",
          "OwnerName": "Raha",
          "SquareFootage": "1000",
          "RenewDate": "6/2/2022",
          "LastAmount": "50000",
          "LastPaymentDate": "4/01/2022",
          "Revenue": "20000"
        }
      ]
    },
    {
      "name": "Sample Three.CSV",
      "rows": [
        {
          "PropertyName": "Round Building in the Square",
          "LeaseID": "371260",
          "LeaseLocation": "8 Rue du Nom Fictif 341 Paris",
          "OwnerName": "Charlie",
          "SquareFootage": "75000",
          "RenewDate": "8/1/2022",
          "LastAmount": "250000",
          "LastPaymentDate": "6/01/2022",
          "Revenue": "22222"
        },
        {
          "PropertyName": "Square Building in the Round",
          "LeaseID": "371281",
          "LeaseLocation": "Avenida da Pastelaria 1903 Lisbon 1229-076",
          "OwnerName": "Lee",
          "SquareFootage": "10000",
          "RenewDate": "6/2/2022",
          "LastAmount": "5000",
          "LastPaymentDate": "4/01/2022",
          "Revenue": "1800"
        }
      ]
    }
  ]
}


/**
 * Returns headings for use in destination spreadsheet and CSV files.
 * @return {string[][]} array of each column heading as string.
 */
function getHeadings() {
  let headings = [[]];
  for (let i in SAMPLE_DATA.headings)
    headings[0].push(SAMPLE_DATA.headings[i]);
  return (headings)
}

/**
 * Returns CSV file names and content to create sample CSV files.
 * @return {object[]} {"file": ["name","csv"]}
 */
function getCSVFilesData() {

  let files = [];

  // Gets headings once - same for all files/rows.
  let csvHeadings = "";
  for (let i in SAMPLE_DATA.headings)
    csvHeadings += (SAMPLE_DATA.headings[i] + ',');

  // Gets data for each file by rows.
  for (let i in SAMPLE_DATA.csvFiles) {
    let sampleCSV = "";
    sampleCSV += csvHeadings;
    let fileName = SAMPLE_DATA.csvFiles[i].name
    for (let j in SAMPLE_DATA.csvFiles[i].rows) {
      sampleCSV += '\n'
      for (let k in SAMPLE_DATA.csvFiles[i].rows[j]) {
        sampleCSV += SAMPLE_DATA.csvFiles[i].rows[j][k] + ','
      }
    }
    files.push({ name: fileName, csv: sampleCSV })
  }
  return (files)
}

/*
 * Checks data functions are working as necessary.
 */
function test_getHeadings() {
  let h = getHeadings()
  console.log(h);
  console.log(h[0].length);
}

function test_getCSVFilesData() {
  const csvFiles = getCSVFilesData();
  console.log(csvFiles)

  for (const file of csvFiles) {
    console.log(file.name)
    console.log(file.csv)
  }
}

SetupSample.gs

solutions/automations/import-csv-sheets/SetupSample.js
/**
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/** 
 * This file contains functions that set up the folders and sample files used to demo the application.
 * 
 * Sample data for the application is stored in the SampleData.gs file.
 */

// Global variables for sample setup.
const INCLUDE_SAMPLE_DATA_FILES = true; // Set to true to create sample data files, false to skip.

/**
 * Runs the setup for the sample. 
 * 1) Creates the application folder and subfolders for unprocessed/processed CSV files.
 *    from global variables APP_FOLDER | SOURCE_FOLDER | PROCESSED_FOLDER
 * 2) Creates the sample Sheets spreadsheet in the application folder.
 *    from global variable SHEET_REPORT_NAME 
 * 3) Creates CSV files from sample data in the unprocessed files folder. 
 *    from variable SAMPLE_DATA in SampleData.gs.
 * 4) Creates an installable trigger to run process automatically at a specified time interval.
 */
function setupSample() {

  console.log(`Application setup for: ${APP_TITLE}`)

  // Creates application folder.
  const folderAppPrimary = getApplicationFolder_(APP_FOLDER);
  // Creates supporting folders.
  const folderSource = getFolder_(SOURCE_FOLDER);
  const folderProcessed = getFolder_(PROCESSED_FOLDER);

  console.log(`Application folders: ${folderAppPrimary.getName()}, ${folderSource.getName()}, ${folderProcessed.getName()}`)

  if (INCLUDE_SAMPLE_DATA_FILES) {

    // Sets up primary destination spreadsheet
    const sheet = setupPrimarySpreadsheet_(folderAppPrimary);

    // Gets the CSV files data - refer to the SampleData.gs file to view.
    const csvFiles = getCSVFilesData();

    // Processes each CSV file.
    for (const file of csvFiles) {
      // Creates CSV file in source folder if it doesn't exist.
      if (!fileExists_(file.name, folderSource)) {
        let csvFileId = DriveApp.createFile(file.name, file.csv, MimeType.CSV);
        console.log(`Created Sample CSV: ${file.name}`)
        csvFileId.moveTo(folderSource);
      }
    }
  }
  // Installs (or recreates) project trigger
  installTrigger()

  console.log(`Setup completed for: ${APP_TITLE}`)
}

/**
 * 
 */
function setupPrimarySpreadsheet_(folderAppPrimary) {

  // Creates the report destination spreadsheet if doesn't exist.
  if (!fileExists_(SHEET_REPORT_NAME, folderAppPrimary)) {

    // Creates new destination spreadsheet (report) with cell size of 20 x 10. 
    const sheet = SpreadsheetApp.create(SHEET_REPORT_NAME, 20, 10);

    // Adds the sample data headings.
    let sheetHeadings = getHeadings();
    sheet.getSheets()[0].getRange(1, 1, 1, sheetHeadings[0].length).setValues(sheetHeadings);
    SpreadsheetApp.flush();
    // Moves to primary application root folder.
    DriveApp.getFileById(sheet.getId()).moveTo(folderAppPrimary)

    console.log(`Created file: ${SHEET_REPORT_NAME} In folder: ${folderAppPrimary.getName()}.`)
    return sheet;
  }
}

/**
 * Moves sample content to Drive trash & uninstalls trigger.
 * This function removes all folders and content related to this application.
 */
function removeSample() {
  getApplicationFolder_(APP_FOLDER).setTrashed(true);
  console.log(`'${APP_FOLDER}' contents have been moved to Drive Trash folder.`)

  // Removes existing trigger if found.
  const projectTriggers = ScriptApp.getProjectTriggers();
  for (var i = 0; i < projectTriggers.length; i++) {
    if (projectTriggers[i].getHandlerFunction() == HANDLER_FUNCTION) {
      console.log(`Existing trigger with handler function of '${HANDLER_FUNCTION}' removed.`);
      ScriptApp.deleteTrigger(projectTriggers[i]);
    }
  }
}

Utilities.gs

solutions/automations/import-csv-sheets/Utilities.js
/**
 * Copyright 2022 Google LLC
 *
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at
 *
 *      http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 */

/** 
 * This file contains utility functions that work with application's folder and files.
 */

/**
 * Gets application destination spreadsheet from a given folder
 * Returns new sample version if orignal is not found. 
 * 
 * @param {string} fileName - Name of the file to test for.
 * @param {object} objFolder - Folder object in which to search.
 * @return {object} Spreadsheet object.
 */
function getSpreadSheet_(fileName, objFolder) {

  let files = objFolder.getFilesByName(fileName);

  while (files.hasNext()) {
    let file = files.next();
    let fileId = file.getId();

    const existingSpreadsheet = SpreadsheetApp.openById(fileId);
    return existingSpreadsheet;
  }

  // If application destination spreadsheet is missing, creates a new sample version.
  const folderAppPrimary = getApplicationFolder_(APP_FOLDER);
  const sampleSheet = setupPrimarySpreadsheet_(folderAppPrimary);
  return sampleSheet;
}

/**
 * Tests if a file exists within a given folder.
 * 
 * @param {string} fileName - Name of the file to test for.
 * @param {object} objFolder - Folder object in which to search.
 * @return {boolean} true if found in folder, false if not.
 */
function fileExists_(fileName, objFolder) {

  let files = objFolder.getFilesByName(fileName);

  while (files.hasNext()) {
    let file = files.next();
    console.log(`${file.getName()} already exists.`)
    return true;
  }
  return false;
}

/** 
 * Returns folder named in folderName parameter. 
 * Checks if folder already exists,  creates it if it doesn't.
 *
 * @param {string} folderName - Name of the Drive folder. 
 * @return {object} Google Drive Folder
 */
function getFolder_(folderName) {

  // Gets the primary folder for the application.
  const parentFolder = getApplicationFolder_();

  // Iterates subfolders to check if folder already exists.
  const subFolders = parentFolder.getFolders();
  while (subFolders.hasNext()) {
    let folder = subFolders.next();

    // Returns the existing folder if found.
    if (folder.getName() === folderName) {
      return folder;
    }
  }
  // Creates a new folder if one doesn't already exist.
  return parentFolder.createFolder(folderName)
    .setDescription(`Supporting folder created by ${APP_TITLE}.`);
}

/** 
 * Returns the primary folder as named by the APP_FOLDER variable in the Code.gs file.
 * Checks if folder already exists to avoid duplication.
 * Creates new instance if existing folder not found.
 *
 * @return {object} Google Drive Folder
 */
function getApplicationFolder_() {

  // Gets root folder, currently set to 'My Drive'
  const parentFolder = DriveApp.getRootFolder();

  // Iterates through the subfolders to check if folder already exists.
  const subFolders = parentFolder.getFolders();
  while (subFolders.hasNext()) {
    let folder = subFolders.next();

    // Returns the existing folder if found.
    if (folder.getName() === APP_FOLDER) {
      return folder;
    }
  }
  // Creates a new folder if one doesn't already exist.
  return parentFolder.createFolder(APP_FOLDER)
    .setDescription(`Main application folder created by ${APP_TITLE}.`);
}

/**
 * Tests getApplicationFolder_ and getFolder_
 * @logs details of created Google Drive folder.
 */
function test_getFolderByName() {

  let folder = getApplicationFolder_()
  console.log(`Name: ${folder.getName()}\rID: ${folder.getId()}\rURL:${folder.getUrl()}\rDescription: ${folder.getDescription()}`)
  // Uncomment the following to automatically delete test folder.
  // folder.setTrashed(true);

  folder = getFolder_(SOURCE_FOLDER);
  console.log(`Name: ${folder.getName()}\rID: ${folder.getId()}\rURL:${folder.getUrl()}\rDescription: ${folder.getDescription()}`)
  // Uncomment the following to automatically delete test folder.
  // folder.setTrashed(true);

  folder = getFolder_(PROCESSED_FOLDER);
  console.log(`Name: ${folder.getName()}\rID: ${folder.getId()}\rURL:${folder.getUrl()}\rDescription: ${folder.getDescription()}`)
  // Uncomment the following to automatically delete test folder.
  // folder.setTrashed(true);


}

Kontributor

Contoh ini dikelola oleh Google dengan bantuan Pakar Developer Google.

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