Summary
This is a simple Flask application that allows users to create a to-do list with text-based tasks. The application has been extended to allow users to upload multiple images for each task. The images are stored in a separate database table linked to each task.

Features

• User authentication: Register, login, and logout.
• Add tasks with text and multiple images.
• View, update, and delete tasks.
• View images associated with each task.
• Delete images from tasks.

Prerequisites

• Python 3.x
• Flask
• Flask-SQLAlchemy
• Flask-Login
• Pillow (PIL)
• werkzeug

Installation Guide
Step-by-step instructions for setting up the application:

• Download the project code.
• Install required dependencies using the provided requirements.txt file (pip install -r requirements.txt)
• If using a cloud-based IDE or a codespace, forward the port to localhost (default: 127.0.0.1:5000) or the desired port.
• Run the application by executing the main Python file (python app.py)

Usage Instructions

• Start the application by running the Python file.
• Access the app by navigating to the configured port in a web browser.
• Create an account, log in, and start managing your tasks!

Database Setup

• The app uses SQLite for database management. On the first run, the database will be created automatically. You can find the database file (test.db) in the same directory as the app.py file.

Technologies Used

• Frameworks/Libraries: Flask, SQLAlchemy, Flask-LoginManager, Pillow (PIL).
• Database: SQLite (test.db with three tables for tasks, users, and images).
• Other: Base64 encoding for image storage.

Application Structure

• app.py: The main Flask application file that handles routing, user authentication, and database operations.
• templates/: Contains the HTML templates for rendering the pages.
  • home.html: The home page.
  • index.html: The page displaying the to-do list.
  • signup.html: User registration page.
  • login.html: User login page.
  • update.html: Task update page.
  • wrongPassword.html: Error page when the password is incorrect.
  • unregistered.html: Error page for unregistered users.
  • alreadyRegistered.html: Error page when a user tries to register with an existing username.

Key Routes

/ - Home Page Displays the welcome page of the application.

/index - To-Do List Displays a list of tasks for the currently logged-in user. Allows adding new tasks with images, deleting tasks, and updating task content or images.

/register - User Registration Allows new users to register by providing a username and password.

/login - User Login Allows registered users to log in with their username and password.

/logout - User Logout Logs the current user out and redirects to the home page.

/update/<int:id> - Update Task Allows users to update the content and images of an existing task.

/delete/<int:id> - Delete Task Deletes a task and any associated images.

/deleteimage/<int:id> - Delete Image Deletes an image associated with a task.

How It Works:

1. Task Creation:
   • Users can create tasks by entering text and uploading images.
   • The images are saved in the database as base64-encoded strings, linked to the task using a foreign key.
2. Task Update:
   • Users can update the task content and upload new images.
3. Task Deletion:
   • Users can delete tasks and associated images.
4. Image Handling:
   • Uploaded images are saved and encoded in base64 format before being stored in the database.

Screenshots

Welcome page:

Home Page:

Update Task:

Contact Information

For inquiries, support, or to report bugs and request new features, please feel free to reach out:

Developer: Vidhita Mittal

Email: vidhitamittal@gmail.com

Feel free to reach out with any feedback and suggestions to improve the application.