voormedia/rails-erd
Rails Erd
rails-erd is a Ruby on Rails ERD generator and database schema visualizer. It serves as an automated diagramming tool that analyzes model associations and attributes to create graphical domain models.
The tool maps associations and inheritance patterns into visual entity-relationship diagrams, including specific support for visualizing single table inheritance. It allows for relationship notation customization, enabling users to toggle between simplified arrows and Bachman notation.
The system provides multi-format diagram export for technical documentation and allows for the configuration of diagram layouts. It utilizes reflection-based metadata inspection to programmatically discover attributes and associations within the data layer.
Features
- ER Diagram Generators - Automatically creates entity-relationship diagrams from Ruby on Rails model associations and attributes.
- Database Schema Visualizers - Provides a visual representation of database tables and their relationships derived from application model metadata.
- Table Inheritance Strategies - Maps single table inheritance patterns to distinct visual entities to represent specialized child model relationships.
- Graphical Relationship Mappers - Maps associations and inheritance patterns into graphical domain models with customizable notations.
- Schema Documentation Generators - Automatically generates diagrams that map out table relationships and attributes for technical documentation.
- Diagramming Tools - Provides an automated utility for exporting database structure visualizations for technical documentation.
- Model Reflection Utilities - Provides reflection-based metadata inspection to programmatically discover model attributes and associations for diagram generation.
- Rails ERD Generators - Creates entity-relationship diagrams by analyzing model associations and attributes in Ruby on Rails applications.
- Inheritance Visualizers - Generates visual maps of class inheritance hierarchies, specifically for single table inheritance patterns.
- Model-Level Schema Reflections - Retrieves model attributes and associations by reflecting on ORM model class definitions at runtime.
- Database Visualizations - Creates visual entity relationship diagrams from Rails models to improve understanding of the application data structure.
- Diagram Exporting - Produces model diagrams in various image and document formats to support different rendering and sharing requirements.
- Diagram Rendering Configurations - Allows defining layout and visual attributes of generated diagrams using configuration files or command line arguments.
- Relationship Notation Systems - Translates association cardinality into specific visual markers like Bachman notation or simplified arrows.
- Relationship Notation Toggles - Allows toggling between simplified arrows and Bachman notation to indicate optional or mandatory relationships.
- Domain Model Analysis - Offers a programmatic interface to analyze and discover attributes and associations within the data layer.
- Intermediate Data Representations - Uses an intermediate data representation to decouple raw model metadata from the final rendering engine.
- Diagram Layout Engines - Provides a diagram layout engine that determines spatial positioning and orientation based on configuration.
- Dashboards and Visualization - Generates entity-relationship diagrams for databases.
- UI and View Helpers - Generates entity-relationship diagrams for models.
