Version 5.5.0

This release introduces significant enhancements to the Backend Generator with class method execution endpoints, and major improvements to the React Generator for dashboard components, chart data series modeling, and method execution buttons in the generated frontend.

New Features and Improvements

Backend Generator - Class Method Endpoints

  • Added automatic generation of API endpoints for class methods defined in B-UML models, enabling direct method execution via REST API calls.

  • Implemented support for two types of method endpoints:

    • Instance methods (with self): POST /{entity}/{id}/methods/{method_name}/ - Execute methods on specific entity instances

    • Class methods (without self): POST /{entity}/methods/{method_name}/ - Execute class-level operations

  • Added support for method parameters with automatic type inference for str, int, float, bool, date, datetime, and time types.

  • Method execution captures print() output and returns it in the API response along with the method result.

  • Automatic database session injection for methods requiring database access.

Auto-Generated GUI from Class Diagrams

  • Added support for automatic GUI generation directly from Class Diagrams.

  • For each class, the system now generates:

    • A navigation entry in the sidebar

    • A dedicated management page with a data table

    • Built-in create, edit, and delete actions

    • Action buttons for executing class and instance methods

  • Generated pages include sorting, pagination, and integration with method execution workflows.

  • Ensures consistency between the domain model and the generated frontend while significantly reducing manual UI configuration.

Dashboard and Chart Component Modeling

  • Added a new Series class to represent data series in charts, enabling more structured and extensible chart definitions.

  • Updated the Chart class to include a list of Series objects with appropriate property accessors.

  • Enhanced chart rendering with support for multiple data series and improved data binding.

Button and Method Execution Support

  • Extended the ButtonActionType enum with new action types for clearer semantics:

    • Navigate - Navigation actions

    • RunMethod - Execute class/instance methods

    • Create - Create new entities

    • Update - Update existing entities

    • Delete - Delete entities

  • Refactored the Button class to support:

    • Direct method execution with configurable endpoints

    • CRUD operations with entity binding

    • Confirmation dialogs for destructive actions

    • Legacy button configuration compatibility

  • Added new properties and accessors for method execution parameters and instance sourcing.

React Code Generation and Serialization

  • Serialized method execution details in the React generator (endpoints, parameters, instance context).

  • Updated the renderer to detect and render method buttons using the new MethodButton component.

  • Added dynamic parameter forms and direct API execution with loading and error handling.

  • Maintained support for both legacy and new method button configurations.

  • Added templates for table filtering and sorting.

Web Modeling Editor Enhancements

  • New sidebar for pages

Documentation

  • Added comprehensive documentation for the Backend Generator’s class method endpoints, including:

    • Complete API endpoint reference tables

    • Supported parameter types

    • Request/response format examples

    • Instance vs. class method usage examples

Fixes

  • Fixed type handling for time type in Pydantic class generation.

  • Improved error handling in method execution endpoints with detailed error messages.

  • Fixed serialization issues with nested method configurations in React code generation.