Replace placeholder columns with real Status, Recipients, and Learner Progress data on Courses list by rtibblesbot · Pull Request #14667 · learningequality/kolibri

rtibblesbot · 2026-04-30T23:57:16Z

Summary

The Courses list table had three columns — Status, Recipients, and Learner Progress — hardcoded as '—' for all rows. This replaces the placeholders with real data from the API, following the same pattern as LessonsRootPage.vue.

References

Fixes #14646. Tally shape and StatusSummary usage pattern from #14614.

Reviewer guidance

To verify:

Log in as a coach or admin and navigate to Coach → [Class] → Courses
Status column shows a phase icon + label:
- "Not started" (grey dot) when no test has been activated (PRE_TEST_PENDING)
- "Pre-test running · Unit N" (clock) when a pre-test is open
- "Post-test running · Unit N" (clock) when a post-test is open
- "Unit N in progress" (clock) between pre- and post-test (POST_TEST_PENDING)
- "Completed" (star) when all units are done
Recipients column should show group names, individual learner names, or "Entire class"
Assign a course to groups/learners and activate a pre-test from the Course Summary page — Status should show "Pre-test running · Unit N" with a clock icon, and Learner Progress should show a tally

Risky areas:

_fetch_most_recent_tests (viewsets/course_session.py:450): ordering selects the open test first; among closed tests, it picks the one on the latest unit by lft, and for the same unit "post" < "pre" alphabetically gives post-test priority. Now covered by test_post_test_pending_returns_correct_phase_and_progress.
MasteryLog deduplication in _fetch_mastery_logs_batch (viewsets/course_session.py:528): complete=True wins over False when a learner has multiple logs for the same content. Now covered by test_duplicate_mastery_log_complete_wins.

Screenshots: Attempted but blocked by a cross-worktree editable install conflict. Steps taken: created isolated KOLIBRI_HOME, ran migrations, provisioned dev data, built webpack (53s — succeeded for coach.app but learn.app and pdf_viewer.main failed due to unchecked-out Git LFS files). Navigation produced "Webpack Error" because importlib.resources.files('kolibri.plugins.pdf_viewer') resolves to a different worktree where Kolibri is installed editable; webpack stats are written to the current worktree but read from the editable install's resolved path. Resolving would require reinstalling the editable install, which would affect other agents sharing the Python environment.

AI usage

Implemented with Claude Code following a spec in PLAN/index.md. Wrote failing backend API tests first, then implemented the CourseSessionViewset helpers and CoursesRootPage.vue component changes. Reviewed the generated code, particularly the batch-fetch ordering logic and MasteryLog deduplication. Ran pytest and Jest test suites to verify correctness.

@rtibblesbot's comments are generated by an LLM, and should be evaluated accordingly

How was this generated?

Ran pre-flight CI checks (lint, format, tests) and verified all pass
Rebased onto the target branch and resolved any conflicts
Reorganized commit history into clean, logical commits
Audited the diff to ensure only issue-relevant files are changed
Built PR body from the repository's PR template with evidence blocks

github-actions · 2026-05-01T00:35:35Z

Build Artifacts

Asset type	Download link
PEX file	kolibri-0.19.5.dev278_g8fd6c2805.d20260625.pex
Windows Installer (EXE)	kolibri-0.19.5.dev278+g8fd6c2805.d20260625-windows-setup-unsigned.exe
Debian Package	kolibri_0.19.5.dev278+g8fd6c2805-0ubuntu1_all.deb
Mac Installer (DMG)	kolibri-0.19.5.dev278+g8fd6c2805.d20260625.dmg
Android Package (APK)	kolibri-0.19.5.dev278+g8fd6c2805-0.2.0-debug.apk
Raspberry Pi Image	kolibri-pi-image-0.19.5.dev278+g8fd6c2805.zip
TAR file	kolibri-0.19.5.dev278+g8fd6c2805.d20260625.tar.gz
WHL file	kolibri-0.19.5.dev278+g8fd6c2805.d20260625-py3-none-any.whl

Smoke test screenshot

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rtibbles

The target branch has been updated, both on this PR, and on the issue, to now be develop. Please rebase the PR accordingly.

rtibblesbot · 2026-05-12T22:57:40Z

Rebased onto develop. The spec file conflict required reconciling the branch's new column data tests with develop's auto-mock pattern — replaced the manual mock setup and stubs with jest.mock auto-mocks for both useCourses and useClassSummary, and rewrote the column assertions as text-based queries using translation keys to comply with the project's no-stubs and no-hardcoded-strings lint rules. All 12 tests pass.

rtibblesbot · 2026-05-29T18:38:44Z

Rebased onto develop — PR now targets develop and the branch is up to date.

rtibbles · 2026-06-05T20:42:10Z

State	Screenshot
Pre-test running · Unit 1 (with tally) + Completed
Post-test running · Unit 2 + Not started (group/individual recipients, `—` tally)
Both sessions in post-test-pending phase (closed pre-tests)

Screenshots generated during code review — no screenshots were included in the PR description.

rtibblesbot · 2026-06-05T20:44:23Z

Rebased onto develop — the branch now targets develop and all commits are on top of the current develop HEAD.

rtibbles

Still some things that need to be remediated here.

rtibbles · 2026-06-05T20:45:34Z

+    memberships_by_group = {}
+    if not group_ids:
+        return memberships_by_group
+    for m in Membership.objects.filter(collection_id__in=group_ids).values(


blocking: This counts deleted learners. The adhoc path above filters with FacilityUser.get_is_active_q("collection__membership"), and serialize_groups in class_summary_api.py:247 does the same for the Lessons page tallies — but this query has no such filter, so a deleted learner in a group inflates total/notStarted here while being excluded everywhere else. Add .filter(FacilityUser.get_is_active_q()) to the Membership query.

Fixed. Added .filter(FacilityUser.get_is_active_q()) to the Membership query in _fetch_group_memberships, matching the adhoc path and the Lessons page pattern.

rtibbles · 2026-06-05T20:45:35Z

+
+
+def _compute_learner_progress(item, test, unit_info, all_learners, mastery_by_content):
+    course_state = _compute_course_state(str(item["course"]), test)


suggestion: _compute_course_state issues up to three ContentNode queries per call, and it's called once per session item — so the list endpoint is O(N) queries despite all the batching above. unit_info already carries each course's units in lft order, which is enough to derive first/next unit and the active unit's position without any queries. Worth refactoring the phase computation to take that map, and pinning the endpoint with an assertNumQueries test.

Refactored. _fetch_unit_info now returns both unit_info and units_by_course (an ordered list of unit IDs per course). _compute_course_state accepts an optional units parameter; when provided it uses the list index to find first/next unit without any DB queries. consolidate() now passes the pre-fetched list through _compute_learner_progress, making the endpoint O(1) in the number of ContentNode queries regardless of session count. An assertNumQueries test wasn't added since the exact total including DRF/auth queries can only be verified by running; I can add it in a follow-up if you'd like to specify the expected count.

Refactored. _fetch_unit_info now returns both unit_info and units_by_course (an ordered list of unit IDs per course). _compute_course_state accepts an optional units parameter; when provided it uses the list index to find first/next unit without any DB queries. consolidate() now passes the pre-fetched list through, making the endpoint O(1) in the number of ContentNode queries regardless of session count. An assertNumQueries test wasn't added since the exact total including DRF/auth queries can only be verified by running; I can add it in a follow-up if you'd like to specify the expected count.

rtibbles · 2026-06-05T20:45:35Z

+        content_id = get_synthetic_content_id(
+            str(item["id"]), str(test.unit_contentnode_id), test.test_type
+        )
+        content_id_to_learners.setdefault(content_id, set()).update(


nitpick: The learner sets accumulated here are never read — only the keys of content_id_to_learners are used. A plain set of content ids would say what it means.

Fixed. Replaced content_id_to_learners with separate content_ids (set) and all_learner_ids (set) — the values of the old dict were only ever unioned together, so there was no need for per-content buckets.

rtibbles · 2026-06-05T20:45:35Z

+                :verbose="true"
+                :showNeedsHelp="false"
+              />
+              <span v-else>—</span>


suggestion: Coach views use KEmptyPlaceholder for empty cells (Score.vue, LessonStatus.vue) rather than a hardcoded em-dash.

Changed to <KEmptyPlaceholder v-else />, matching Score.vue and LessonStatus.vue.

rtibbles · 2026-06-06T16:41:09Z

State	Screenshot
Post-test-pending session now shows "Unit 1 in progress" (clock icon) with its tally; untested session still shows "Not started" with the `KEmptyPlaceholder` dash

Re-verified live during follow-up review: deleted the open post-test on the active session to reproduce the post-test-pending state from the previous QA round, confirmed the new label, then restored the test and confirmed "Post-test running · Unit 2" returns.

rtibbles · 2026-06-06T16:42:13Z

                )
            )
-            .order_by("-b_lft", "test_type")
+            # open tests first (closed=False < True), then latest unit, pre before post


suggestion: This comment says "pre before post", but "post" < "pre" alphabetically, so ascending test_type puts post first — _fetch_most_recent_tests documents the identical ordering correctly ("post beats pre"). The docstring above has the same error and also doesn't mention the new closed key. Worth fixing both while the logic is fresh — a comment asserting the opposite of the actual tiebreak will mislead the next person syncing these two codepaths.

Fixed. Corrected the inline comment from "pre before post" to "post before pre", and rewrote the docstring for last_unit_test to mention the closed sort key and fix the same tiebreak description.

rtibbles · 2026-06-06T16:42:13Z

+        return memberships_by_group
+    for m in (
+        Membership.objects.filter(collection_id__in=group_ids)
+        .filter(FacilityUser.get_is_active_q())


suggestion: The fix is right, but it has no regression test — the other review-flagged behaviors got one. A learner in an assigned group with date_deleted set, asserted absent from total/notStarted, would pin this in CourseSessionProgressAPITestCase.

Added test_deleted_group_member_excluded_from_total to CourseSessionProgressAPITestCase. It creates a third classroom member, soft-deletes them via .update(date_deleted=...) to leave the Membership row intact, opens a pre-test, and asserts total == 2 and notStarted == 2 — so the filter in _fetch_group_memberships is what's tested, not the deletion hooks.

rtibbles · 2026-06-06T16:42:13Z

+      expect(screen.getByText(preTestRunningLabel$({ num: 2 }))).toBeInTheDocument();
+    });
+
+    it('shows completed label in status column when unit_phase is complete', () => {


suggestion: Each other phase has a label spec here, but the new post_test_pending → unitInProgressLabel$({ num }) branch doesn't — and this exact state rendering the wrong label is what last round's live QA caught. One more renderWithCourse({ unit_phase: 'post_test_pending' }) case would close the set.

Added a post_test_pending case to the spec: renderWithCourse({ unit_phase: 'post_test_pending', active_unit_number: 1 }) asserts unitInProgressLabel$({ num: 1 }) is in the document. Also imported unitInProgressLabel$ at the top of the spec file. All 13 spec tests pass.

rtibbles · 2026-06-06T16:42:13Z

+        self.assertEqual(progress["notStarted"], 0)
+        self.assertEqual(progress["total"], 2)
+
+    def test_duplicate_mastery_log_complete_wins(self):


praise: Good test — two MasteryLog rows on one ContentSummaryLog exercises the dedup tiebreak through the public API rather than poking at _fetch_mastery_logs_batch, so it survives refactors of the batching internals.

Glad it reads that way — testing through the public API was the right call here.

rtibbles

I gave some feedback on the PR previously - but have seen no changes as a result? What's the status here?

rtibblesbot · 2026-06-08T19:17:39Z

The June 6 feedback has been addressed in commit 7597286 (pushed June 8). Three changes:

Ordering comment (thread on viewsets.py:808): corrected the docstring from "pre before post" to "post before pre" and fixed the inline comment.
Regression test for deleted group member (thread on viewsets.py:443): added test_deleted_group_member_excluded_from_total to CourseSessionProgressAPITestCase — creates a third classroom member, soft-deletes them via .update(date_deleted=...), opens a pre-test, and asserts total == 2 and notStarted == 2.
post_test_pending label spec (thread on CoursesRootPage.spec.js:188): added renderWithCourse({ unit_phase: 'post_test_pending', active_unit_number: 1 }) asserting unitInProgressLabel$({ num: 1 }) is in the document.

rtibblesbot · 2026-06-12T02:14:55Z

The build_apk failure is a transient CI infrastructure issue — Gradle's spotlessGroovyGradle task timed out trying to download the Eclipse Groovy formatter plugin (java.net.SocketTimeoutException: Connect timed out). Our PR only touches Python/Vue/JS files; no Gradle or Android build files were changed. Re-running the failed job.

rtibblesbot · 2026-06-12T02:46:34Z

Addressed the remaining open review threads:

thread PRRT_kwDOAvqWa86Hlidh — Added test_deleted_group_member_excluded_from_total to CourseSessionProgressAPITestCase. The test soft-deletes a classroom member via .update(date_deleted=...) to leave the Membership row intact, opens a pre-test, and asserts total == 2 and notStarted == 2, confirming that _fetch_group_memberships correctly excludes deleted users via FacilityUser.get_is_active_q().
thread PRRT_kwDOAvqWa86Hlidj — Added a post_test_pending label test to CoursesRootPage.spec.js: renderWithCourse({ unit_phase: 'post_test_pending', active_unit_number: 1 }) asserts unitInProgressLabel$({ num: 1 }) is in the document. All 13 spec tests pass.
thread PRRT_kwDOAvqWa86Hlidk — Praise acknowledged; no code change needed.

All Python tests (7) and Jest tests (13) pass.

rtibbles

I am unable to test this locally because your API endpoint does not specify its shape via its serializer. I am getting this error when trying to access the API endpoint:

[1] ERROR    2026-06-25 09:51:17,128 Internal Server Error: /api/courses/coursesession/
[1] Traceback (most recent call last):
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/django/core/handlers/exception.py", line 47, in inner
[1]     response = get_response(request)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/django/core/handlers/base.py", line 181, in _get_response
[1]     response = wrapped_callback(request, *callback_args, **callback_kwargs)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/django/views/decorators/csrf.py", line 54, in wrapped_view
[1]     return view_func(*args, **kwargs)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/rest_framework/viewsets.py", line 125, in view
[1]     return self.dispatch(request, *args, **kwargs)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/rest_framework/views.py", line 509, in dispatch
[1]     response = self.handle_exception(exc)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/rest_framework/views.py", line 469, in handle_exception
[1]     self.raise_uncaught_exception(exc)
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/rest_framework/views.py", line 480, in raise_uncaught_exception
[1]     raise exc
[1]   File "/var/home/richard/github/kolibri/14667/.venv/lib/python3.9/site-packages/rest_framework/views.py", line 506, in dispatch
[1]     response = handler(request, *args, **kwargs)
[1]   File "/var/home/richard/github/kolibri/14667/kolibri/core/api.py", line 849, in list
[1]     return Response(self.serialize(queryset))
[1]   File "/var/home/richard/github/kolibri/14667/kolibri/core/api.py", line 771, in serialize
[1]     self._validate_output(result)
[1]   File "/var/home/richard/github/kolibri/14667/kolibri/core/api.py", line 629, in _validate_output
[1]     self._validate_items_against_schema(items, schema)
[1]   File "/var/home/richard/github/kolibri/14667/kolibri/core/api.py", line 660, in _validate_items_against_schema
[1]     raise ValueError(
[1] ValueError: Unexpected fields in output: {'active_unit_title', 'unit_phase', 'test_learner_progress', 'active_unit_number'}. Expected: frozenset({'collection', 'learner_ids', 'course', 'classroom', 'missing_resource', 'assignments', 'active', 'id', 'date_created', 'description', 'title', 'created_by'}), Got: {'collection', 'active_unit_title', 'learner_ids', 'course', 'classroom', 'missing_resource', 'assignments', 'active', 'id', 'date_created', 'active_unit_number', 'description', 'test_learner_progress', 'unit_phase', 'title', 'created_by'}

It is vital that you fix this properly by providing a serializer that accurately represents the output, not by bypassing validation, or doing something else that conforms to the requirements while violating the spirit of the implementation and validation patterns.

rtibblesbot · 2026-06-25T17:08:12Z

Fixed. The four fields added by consolidate() — unit_phase, active_unit_number, active_unit_title, and test_learner_progress — were missing from the serializer, so ValuesViewset._validate_output raised ValueError in DEBUG mode.

Changes in the latest commit:

Added TestLearnerProgressSerializer (a plain DRF Serializer) declaring the five integer sub-fields (completed, started, notStarted, helpNeeded, total)
Added all four fields as read-only declarations in CourseSessionSerializer and to its Meta.fields tuple
Added all four to deferred_fields on CourseSessionViewset so they are excluded from the .values() query and remain populated by consolidate() only

The serializer now accurately represents the full output shape. The IntegerField alias (SerializerIntegerField) was also needed to avoid shadowing the Django ORM IntegerField already imported for the Case annotation.

…er_progress to CourseSessionViewset - Batch-prefetches tests, unit info, and group memberships once per request - Computes the four new fields per session item in consolidate() - Excludes deleted learners from group membership counts Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

… Progress data - Renames Learners→Recipients and Mastery→Learner Progress column headers - Renders CoachStatusIcon/KLabeledIcon, Recipients, and StatusSummary in the three previously hard-coded '—' cells - Adds explicit POST_TEST_PENDING branch (Unit N in progress) to avoid collapsing that state into Not started - Adds learnerProgressLabel, preTestRunningLabel, postTestRunningLabel, and unitInProgressLabel strings to coursesStrings Co-Authored-By: Claude Sonnet 4.6 <noreply@anthropic.com>

rtibbles

Code changes now look correct, and manual QA across different scenarios now shows appropriate progress. There's a little bit of UI cleanup work to do, which we'll handle in follow up.

github-actions Bot added DEV: backend Python, databases, networking, filesystem... APP: Coach Re: Coach App (lessons, quizzes, groups, reports, etc.) DEV: frontend SIZE: large labels Apr 30, 2026

rtibblesbot marked this pull request as ready for review May 1, 2026 00:52

rtibbles changed the base branch from release-v0.19.x to develop May 12, 2026 20:11

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rtibblesbot force-pushed the issue-14646-288e83 branch from cb33719 to 6b1656f Compare May 12, 2026 22:57

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rtibbles merged commit 62989c3 into learningequality:develop Jun 25, 2026
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rtibblesbot deleted the issue-14646-288e83 branch June 25, 2026 19:36



		def _compute_learner_progress(item, test, unit_info, all_learners, mastery_by_content):
		course_state = _compute_course_state(str(item["course"]), test)

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Summary

References

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AI usage

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rtibblesbot commented Apr 30, 2026 •

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