Event type plugins

Event types are used to indicate the type of an Event, such as a birth, a death, or an marriage.

Creating an event type

  1. Create a new class that extends betty.ancestry.event_type.EventType and implements the abstract methods, for example:

    from typing import override
    from betty.ancestry.event_type import EventType
    from betty.machine_name import MachineName
    
    class MyEventType(EventType):
      @override
      @classmethod
      def plugin_id(cls) -> MachineName:
          return "my-module-my-event-type"
    
      # Implement remaining abstract methods...
      ...
    
  2. Tell Betty about your event type by registering it as an entry point. Given the event type above in a module my_package.my_module, add the following to your Python package:

[project.entry-points.'betty.event_type']
'my-module-my-event-type' = 'my_package.my_module.MyEventType'
SETUP = {
    'entry_points': {
        'betty.event_type': [
            'my-module-my-event-type=my_package.my_module.MyEventType',
        ],
    },
}
if __name__ == '__main__':
    setup(**SETUP)

See also

Read more about how to use event types and Betty’s built-in event types at Event Type.