Each button_start opens a fresh timelog row; button_finish closes
the open row and recomputes step.duration_actual as the sum of all
interval durations. Replicates Odoo MRP's mrp.workorder.time_ids
granularity natively (no mrp dep).
Schema: step_id (M2O cascade), user_id, date_started,
date_finished, duration_minutes (computed, stored).
ACLs: operator get create permission on timelogs because
button_start creates them.
Tests: test_start_creates_timelog (asserts the log row exists,
date_finished is False, user_id is the current user) and
test_finish_closes_timelog (asserts log gets date_finished, has a
non-negative duration, and step.duration_actual matches).
Manifest 19.0.8.5.1 -> 19.0.8.6.0.
Part of: native job model migration (spec 2026-04-25)
Co-Authored-By: Claude Opus 4.7 (1M context) <noreply@anthropic.com>
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