RailsGraph

Graph visualization for Rails applications using Neo4j Browser.

Gain visibility on your Rails application data model and identify bottlenecks. It is an ERD, but interactive and queryable using Cypher.

explore-nodes.mov

Features

• Application Databases and Tables
• ActiveRecord Models
  • Metadata, e.g size, indexes
  • Columns (disabled by default)
    • Metadata, e.g type and constraints
  • Associations
    • HasMany
    • BelongsTo
    • HasOne
    • HasAndBelongsToMany
    • Support for Polymorphic Associations
• ActiveRecord Abstract models
• Class Hierarchy
• Packwerk packages (disabled by default)
• Application Gems (disabled by default)

Installation

Install the gem and add to the application's Gemfile by executing:

$ bundle add rails_graph

Usage

After installing RailsGraph to your Rails application, run the following rake task to scan your app and export it to Neo4j:

rails rails_graph:export:neo4j -- -u neo4j -p admin -h neo4j://localhost:7687

Then explore your model on Neo4j Browser.

Neo4j

To learn how to use Neo4j Browser, check out the documentation.

Self setup

If you have Neo4j running locally, e.g using Docker, then the browser is most likely accessible through: http://localhost:7474/browser/

Cloud Options

If you prefer to have a cloud managed server, feel free to check out Neo4j AuraDB, it provides a free instance.

Config

You can control what RailsGraph will include in the final graph by:

# config/initializers/rails_graph.rb

RailsGraph.configure do |config|
  # Explicitly define classes that are not loaded automatically
  config.include_classes = [ActsAsTaggableOn::Tag, ActsAsTaggableOn::Tagging]

  # Enable Columns visualisation
  # default false
  config.columns = true

  # Enable Class Hierarchy visualisation
  # default true
  config.inheritance = true

  # Enable Databases visualisation
  # default true
  config.databases = false

  # Enable Packwerk packages visualisation
  # default false
  config.include_packwerk = true

  # Enable Gems visualisation
  # default false
  config.gems = true
end

Sample Project

Checkout RailsGraph Example repo here

Development

After checking out the repo, run bin/setup to install dependencies. Then, run rake spec to run the tests. You can also run bin/console for an interactive prompt that will allow you to experiment.

To install this gem onto your local machine, run bundle exec rake install. To release a new version, update the version number in version.rb, and then run bundle exec rake release, which will create a git tag for the version, push git commits and the created tag, and push the .gem file to rubygems.org.

Contributing

Bug reports and pull requests are welcome on GitHub at https://github.com/ahmad-elassuty/rails_graph. This project is intended to be a safe, welcoming space for collaboration, and contributors are expected to adhere to the code of conduct.

License

The gem is available as open source under the terms of the MIT License.

Code of Conduct

Everyone interacting in the RailsGraph project's codebases, issue trackers, chat rooms and mailing lists is expected to follow the code of conduct.