Exception: Funes::UnknownEvent

Inherits:
StandardError
  • Object
show all
Defined in:
lib/funes/unknown_event.rb

Overview

Raised when a projection encounters an event type it doesn’t know how to interpret.

By default, projections silently ignore unknown events. This error is only raised when a projection is configured with ‘raise_on_unknown_events`, which enforces strict event handling to catch missing interpretation blocks during development.

Examples:

Configure a projection to raise on unknown events

class StrictProjection < Funes::Projection
  raise_on_unknown_events

  interpretation_for OrderPlaced do |state, event, _at|
    # ...
  end
end

Handling unknown events

begin
  projection.process_events(events)
rescue Funes::UnknownEvent => e
  Rails.logger.error "Missing interpretation: #{e.message}"
end