[claude] Stop the activity detail view crashing on opaque changes by myieye · Pull Request #2796 · sillsdev/languageforge-lexbox

myieye · 2026-10-23T15:01:29Z

[Claude, autonomous]

An opaque (unregistered) change now opens with an empty detail context instead of throwing. Only reachable once UnknownChangeHandling.Fallback is enabled; production still uses Throw.

Opaque tests opt into Fallback via a fixture hook, which also bypasses EF's model cache and linq2db's query cache (both are process-wide and would keep the first fixture's Throw deserializer).
New coverage test opens every change type's detail context and checks it links the owning entry the activity row names.
Comment-thread and user-comment changes now link the commented entry in the detail view (the list already grouped them under it). The preview's current-version toggle is limited to the snapshot types it can actually find in the entry, so comment changes no longer show as "Deleted".

🤖 Generated with Claude Code

An opaque (unregistered) change has no snapshot when it's a create (the entity was never materialized on this client), so LoadChangeContext threw ArgumentNullException from GetAtCommit. Return an empty context for opaque changes instead: "Unknown" name, no preview, no affected entries. Opaque edits get the empty context too; their snapshot would show the entity state excluding the very change being viewed. The tests opt into UnknownChangeHandling.Fallback through a new fixture hook. Production keeps the default Throw for now, so unknown change types fail sync outright and never reach the activity view. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

Runs the full change catalogue through LoadChangeContext: no change may throw, and the detail context must link the owning entry the list row names. Comment types are allowlisted since the preview has no comment layout. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

coderabbitai · 2026-10-23T15:02:11Z

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Reviewing files that changed from the base of the PR and between e2ed6c5 and 5f7b6bf.

Files selected for processing: 6

backend/FwLite/LcmCrdt.Tests/ActivityChangeInfoResolverCoverageTests.cs
backend/FwLite/LcmCrdt.Tests/HistoryServiceActivityTests.cs
backend/FwLite/LcmCrdt.Tests/HistoryServiceOpaqueChangeTests.cs
backend/FwLite/LcmCrdt.Tests/MiniLcmApiFixture.cs
backend/FwLite/LcmCrdt/HistoryService.cs
frontend/viewer/src/lib/activity/ActivityItemChangePreview.svelte

Files skipped from review as they are similar to previous changes: 1

backend/FwLite/LcmCrdt.Tests/HistoryServiceOpaqueChangeTests.cs

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Walkthrough

The history service now returns empty snapshots and affected-entry data for opaque changes. It resolves owning entries for supported entity types, including comments and comment threads. The test fixture accepts optional service configuration, and tests cover opaque changes and owning-entry links. The activity preview displays its date and current-version switch only for entry, sense, and example sentence snapshots.

Priority: Normal

Estimated code review effort: 3 (Moderate) | ~25 minutes

Change: Bug fix

Suggested reviewers: hahn-kev

Merge Risk: Minimal · up to 5f7b6

No issue requiring a fix before merge was established; the change is mergeable after normal checks.

Pre-merge checks: 4 · 1

Failed checks: 1 warning

Check name	Status	Explanation	Resolution
Docstring Coverage		Docstring coverage is 8.70% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 23 functions across 6 files. (1 skipped: 1…	Write docstrings for the functions missing them to satisfy the coverage threshold.

Passed checks: 4 passed

Check name	Status	Explanation
Title check		The title clearly and concisely identifies the main change: preventing activity detail views from crashing on opaque changes.
Description check		The description directly explains the opaque-change handling, fixture configuration, added tests, entry linking, and preview behavior changes.
Linked Issues check		Check skipped because no linked issues were found for this pull request.
Out of Scope Changes check		Check skipped because no linked issues were found for this pull request.

Full details: Docstring Coverage

Explanation

Docstring coverage is 8.70% which is insufficient. The required threshold is 80.00%. Docstring coverage is scoped to functions touched by this diff. Analyzed 23 functions across 6 files. (1 skipped: 1 unsupported.)

Resolution

Write docstrings for the functions missing them to satisfy the coverage threshold.

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_{A rabbit checks the history trail,
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Opaque changes leave snapshots bare,
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Inline comments:
Review comments at
@backend/FwLite/LcmCrdt.Tests/ActivityChangeInfoResolverCoverageTests.cs:
- Line 85: In ActivityChangeInfoResolverCoverageTests, update the
allowlisted-change check to assert for each individual change that
context.AffectedEntries omits owningEntryId, then add its type to omitted for
the coverage check; do not use an aggregate check that can hide a linked change
of the same type.

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Reviewing files that changed from the base of the PR and between 04e50f8 and e2ed6c5.

📒 Files selected for processing: 5

backend/FwLite/LcmCrdt.Tests/ActivityChangeInfoResolverCoverageTests.cs
backend/FwLite/LcmCrdt.Tests/HistoryServiceActivityTestsBase.cs
backend/FwLite/LcmCrdt.Tests/HistoryServiceOpaqueChangeTests.cs
backend/FwLite/LcmCrdt.Tests/MiniLcmApiFixture.cs
backend/FwLite/LcmCrdt/HistoryService.cs

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argos-ci · 2026-10-23T15:10:29Z

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Previously an allowlisted type passed if any one of its changes still omitted the owning entry, hiding a change that had started linking it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

The second AddDbContextFactory call defaulted to Singleton while LcmCrdtKernel registers it Scoped, so it added a root-scoped options descriptor beside the scoped one. Also explains why opaque edits get an empty detail context, not just opaque creates. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01V3AhdPwmhYofmWwThhKavX

The activity list already groups comment-thread and user-comment changes under the entry they're about, but the detail view had no affected entry for them. The coverage test papered over that with an allowlist; it now just asserts that every change's detail links the entry its list row names. The preview showed "Deleted" for any snapshot type it can't find inside the affected entry, so the current-version toggle is now limited to the types it can (Entry, Sense, ExampleSentence); the timestamp it also carried is already shown by ActivityItem. Co-Authored-By: Claude Fable 5.1 <noreply@anthropic.com> Claude-Session: https://claude.ai/code/session_01V3AhdPwmhYofmWwThhKavX

myieye · 2026-10-24T20:52:46Z

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coderabbitai · 2026-10-24T20:52:53Z

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…exbox into claude/activity-opaque-change-tolerance # Conflicts: # backend/FwLite/LcmCrdt.Tests/MiniLcmApiFixture.cs

myieye and others added 2 commits October 23, 2026 17:00

myieye mentioned this pull request Oct 23, 2026

[claude] Stop the activity detail view crashing on opaque changes myieye/languageforge-lexbox#23

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github-actions Bot added the 🔩 FW Lite Core Shared MiniLcm, CRDT and sync libraries that ship in both FW Lite and FwHeadless label Oct 23, 2026

coderabbitai Bot reviewed Oct 23, 2026

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Comment thread backend/FwLite/LcmCrdt.Tests/ActivityChangeInfoResolverCoverageTests.cs Outdated

myieye and others added 3 commits October 23, 2026 17:12

Fail the detail-coverage allowlist as soon as any change links its entry

8c4926f

Previously an allowlisted type passed if any one of its changes still omitted the owning entry, hiding a change that had started linking it. Co-Authored-By: Claude Opus 5.5 <noreply@anthropic.com>

github-actions Bot added the 💻 FW Lite issues related to the fw lite application, not miniLcm or crdt related label Oct 24, 2026

hahn-kev approved these changes Oct 26, 2026

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Merge branch 'develop' of https://github.com/sillsdev/languageforge-l…

5317d86

…exbox into claude/activity-opaque-change-tolerance # Conflicts: # backend/FwLite/LcmCrdt.Tests/MiniLcmApiFixture.cs

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[claude] Stop the activity detail view crashing on opaque changes - #2796

[claude] Stop the activity detail view crashing on opaque changes#2796
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