Annotato

Automatically adds schema comments (columns, indexes, triggers, enums) to Rails models.

• Annotates Rails models with:

  • Columns and types
  • Default values and constraints
  • Enums with values
  • Indexes (only if present)
  • Triggers (only if present)

• Skips unchanged annotations

• Smart formatting with aligned columns

Example:

# == Annotato Schema Info
# Table: users
#
# Columns:
#  id         :bigint           not null, primary key
#  email      :string           not null, unique
#  role       :string           default("user"), not null
#
# Enums:
#  role: { user, admin }

class User < ApplicationRecord
end

Add this line to your Gemfile:

gem "annotato"

Then run:

bundle install

To annotate all models, run:

bundle exec rake annotato:models

You can now pass one or multiple model names to the task.

# Annotate only the User model
rake annotato:models[User]

# Annotate multiple models (User and Admin::Account)
rake annotato:models["User,Admin::Account"]

rake annotato:models[MODEL]

• Automatically loads all models via Rails.application.eager_load!
• Modifies model files in place
• Replace existing Annotato and legacy annotate blocks
• Pass MODEL argument (single or comma-separated) to target specific models

To run tests:

bundle exec rspec

To check code coverage:

COVERAGE=true bundle exec rspec

Feel free to open issues or pull requests.

MIT