Active Storage Test App

A Rails 8.1 application demonstrating Active Storage file uploads with Turbo Streams for real-time UI updates.

Features

• File upload with Active Storage
• Real-time updates using Turbo Streams (no page refresh)
• Display of uploaded files with download links
• Visibility into Active Storage internals:
  • Attachments table (active_storage_attachments)
  • Blobs table (active_storage_blobs)

Requirements

• Ruby 3.x
• Rails 8.1
• SQLite3

Setup

# Install dependencies
bundle install

# Setup database
bin/rails db:create db:migrate

# Start the server
bin/rails server

Visit http://localhost:3000 to use the application.

Usage

1. Enter a name for your upload
2. Select a file
3. Click "Upload"

The file will be uploaded and all three tables will update instantly without page refresh:

• Uploaded Files - Your Upload records with file download links
• Active Storage Attachments - The join table linking records to blobs
• Active Storage Blobs - File metadata (filename, content type, size, checksum)

Project Structure

• app/models/upload.rb - Upload model with has_one_attached :file
• app/controllers/uploads_controller.rb - Handles CRUD with Turbo Stream responses
• app/views/uploads/ - Views and Turbo Stream templates