The backfill and the restore of an older file read the creation day of
an end-only window in UTC while every reader of the window uses the
account's zone; both now use the account's zone (the default zone when
the stored one is unknown to Postgres). A window whose start lies after
its end, which the API refuses but older rows hold, becomes a one-day
course on the end day: every reader treated it as empty and ended, and
a swap would have invented expected doses. One shared rule
(courseFromWindow) serves the restore and the course writer.
The history minted bands only from the latest course, so misses in an
earlier course counted in the rate and appeared nowhere in the history.
It now mints over the span of every course and keeps the slots on a
course day. The compliance ledger and the cadence missed tally drop the
gap slots before the reconstruction instead of after it, so a dose
logged between courses stays visible as an off-schedule take in both.
A medication with no course rows and no window is running since its
creation; a course added beside it projected the medication into ending,
which stopped its reminders and dropped its history from compliance. The
create now refuses that (medications.course.currentOpen; End course
writes the first course). A window the rows never recorded is
materialised as the first course before the new one is checked.
A medication taken now and then (#1024) keeps one row and gains course
rows: calendar spans, both ends inclusive, an optional encrypted note, no
schedule or dose of their own. Courses never overlap and every course but
the latest has ended, so the latest course is always the one the
medication's startsOn/endsOn project. src/lib/medications/courses.ts is
the only writer of those two columns for a medication with courses; it
writes under a per-medication advisory lock and re-projects in the same
transaction, so reminders, the next-due line and intakeActionable keep
reading the columns and stay right.
- Migration 0368 adds medication_courses and backfills one course per
medication window (an end-only window starts on the creation day, or
on its end day when that lies earlier); a medication without a window
stays course-less. Idempotent, data-preserving.
- GET/POST /api/medications/{id}/courses and PATCH/DELETE
.../courses/{courseId} (owner-only); create seeds the first course
from a window; the medication PUT edits the latest course and refuses
a window that would break the rules (medications.course.*).
- List, detail, create and update carry courses, courseCount,
previousCourseEndedOn and canStartCourse, resolved on the server.
- Compliance expands over the span of all courses and drops the slots
between them; every compliance read selects the courses. A rolling
cadence is not anchored by an intake from a previous course.
- The card names the last course's end and the running course's number;
the detail Lifecycle group lists the courses with start, edit and
delete. The Coach compliance block, the MCP resource, the doctor
report window and table, the clinician view and FHIR (one
MedicationStatement per course with effectivePeriod and status) read
the courses.
- Backup carries courses per medication and the restore writes them and
re-projects; an older file derives the one course its window
describes. Wipe plan, encrypted columns, rotation and OpenAPI follow.
Marc-André Bombeck