TaskUpdatedEvent

EventType: TASK_UPDATEDDomain: collaboration Broker subject: progress.notification.user.{user_key}

Updates mutable fields of an existing task. Unlike other task events, TaskUpdatedEvent overrides _build_event_payload() to emit a user-scoped broker subject — each assigned user receives a targeted notification at progress.notification.user.{user_key} rather than the shared task subject.

Trigger

Triggered by: POST /event (universal event dispatcher)

Dispatched via POST /event in backend/api/endpoints/traceability.py with event_type: TASK_UPDATED.

Preconditions

• Task exists with key info.task_key

State Changes (Transaction)

Collections: Task

• Task updated with any combination of title, description, assigned_to, start_from, due_by, form_fields

Side Effects (post_processing)

Overrides _build_event_payload() — publishes to progress.notification.user.{user_key} for each assigned user rather than the generic task subject.

InfoModel Fields

Field	Type	Description
task_key	str	ArangoDB key of the task to update
title	str | None	New task title
description	str | None	New task description
assigned_to	list[TaskAssignment] | None	Updated assignment list
start_from	date | None	New earliest start date
due_by	date | None	New due date
form_fields	list[TaskFieldUpdate] | None	Custom form field updates

Related Events

None.

Source

TaskUpdatedEvent on GitHub