Google Sheets | Multi Page CRUD Web APPLICATION #appsscript #webapp
Table of Contents
Introduction
This tutorial will guide you through creating a multi-page CRUD (Create, Read, Update, Delete) web application using Google Sheets. You'll learn how to manage data easily with features like file uploads, dynamic drop-down lists, dependent fields, and real-time updates. This application is ideal for anyone looking to streamline data management processes using Google Sheets and Apps Script.
Step 1: Set Up Your Google Sheet
- Create a new Google Sheet to serve as your database.
- Define the structure of your data
- Include headers for each field (e.g., Name, Email, File Upload, etc.).
- Consider the types of data you will collect (text, numbers, files).
Step 2: Access Google Apps Script
- Open your Google Sheet.
- Click on
Extensions
in the menu. - Select
Apps Script
to open the script editor. - This is where you'll write the code for your web application.
Step 3: Create the HTML Interface
- In the Apps Script editor, create an HTML file
- Click on the
+
icon and selectHTML
. - Name it
index.html
. - Design your web app interface using HTML and CSS
- Include forms for data entry.
- Use
<form>
tags for each input field.
Example HTML snippet to create a form:
<form id="dataForm">
<input type="text" name="name" placeholder="Enter Name" required>
<input type="email" name="email" placeholder="Enter Email" required>
<input type="file" name="fileUpload">
<button type="submit">Submit</button>
</form>
Step 4: Write the Apps Script Code
- In your Apps Script editor, write functions to handle CRUD operations
- Create functions for adding, reading, updating, and deleting data.
Example function to add data:
function addData(formData) {
const sheet = SpreadsheetApp.getActiveSpreadsheet().getActiveSheet();
sheet.appendRow([formData.name, formData.email, formData.fileUpload]);
}
Step 5: Implement Dynamic Drop-down Lists
- To create dynamic drop-down lists, use data validation in Google Sheets.
- Use Apps Script to fetch data for the drop-downs dynamically.
Example code snippet for a drop-down list:
function getDropdownData() {
const sheet = SpreadsheetApp.getActiveSpreadsheet().getSheetByName("DropdownData");
const data = sheet.getRange("A:A").getValues();
return data.flat().filter(String); // Returns non-empty values
}
Step 6: Handle File Uploads
- Implement file upload functionality using Google Drive.
- In your Apps Script, create a function to save uploaded files.
Example code for handling file uploads:
function uploadFile(file) {
const blob = file; // Assuming file is a Blob object
const folder = DriveApp.getFolderById('YOUR_FOLDER_ID');
const fileInDrive = folder.createFile(blob);
return fileInDrive.getUrl(); // Return the file URL
}
Step 7: Set Up Real-Time Changes
- Use triggers in Google Apps Script to listen for changes in the Google Sheet.
- Set up functions to update the UI in real time when data is modified.
Step 8: Publish Your Web Application
- Once your application is complete, publish it
- Click on
Deploy
>New deployment
. - Configure your web app settings and permissions.
- Make sure to allow access to anyone with the link if desired.
Conclusion
You have now created a multi-page CRUD web application using Google Sheets and Apps Script. This application allows you to create, read, update, and delete records efficiently, with added functionalities like file uploads and dynamic drop-down lists. For further enhancements, consider exploring additional features like computed fields or formatting support for images. Happy coding!