README

1. What the Application Is

   ImmuniRecord is a simple yet complete immunisation management system — built in Ruby on Rails — that keeps track of:

• Patients (who receive vaccines),

• Vaccines (the available vaccine types), and

• Immunisations (which vaccine each patient received, when, by whom, and what’s due next).

  It’s like a lightweight digital immunisation register for clinics or healthcare staff.

2. Relationships Between Models

Model	Relationship	Description
Patient	has_many :immunisations	Each patient can have multiple immunisations.
Vaccine	has_many :immunisations	Each vaccine type can be administered to many patients.
Immunisation	belongs_to :patient belongs_to :vaccine	A join record that links one patient and one vaccine together with details (date, batch, due date, etc).

🧠 In ERD (Entity Relationship Diagram) form:

Patient (1) ───< (many) Immunisation (many) >─── (1) Vaccine

• Deployment instructions

  cat > README.md << 'EOF'

Immuni Record

Simple Rails app.

Requirements

• Ruby 3.4.x
• Rails 8.1.x
• SQLite

Setup

bundle install
    bundle exec rails db:prepare
    bundle exec rails s