Fix pagination bug cluster in tagging service#137
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mdolina
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Jul 5, 2026
mdolina
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- BUG-1: propagate Cassandra errors from getPopulatedBuckets in GetMembersPaginated as 500 instead of masking them as 404 "tag not found"
- BUG-2: a failed bucket read now fails the page (500) instead of silently omitting the bucket's members and advancing the cursor past them; same fix applied to the non-paginated read path (GetTagById / GetMembersNonPaginated)
- BUG-3: a cursor pointing past the last populated bucket ends the enumeration instead of wrapping around to bucket 0 and re-delivering the whole tag; invalid/corrupt cursors now return 400 Bad Request instead of silently restarting from the beginning
- Remove unused BucketedCursor.TotalCollected field
- Add a mock DatabaseClient test seam and service-level tests covering all three bugs plus a two-page pagination regression walk
- BUG-1: propagate Cassandra errors from getPopulatedBuckets in GetMembersPaginated as 500 instead of masking them as 404 "tag not found" - BUG-2: a failed bucket read now fails the page (500) instead of silently omitting the bucket's members and advancing the cursor past them; same fix applied to the non-paginated read path (GetTagById / GetMembersNonPaginated) - BUG-3: a cursor pointing past the last populated bucket ends the enumeration instead of wrapping around to bucket 0 and re-delivering the whole tag; invalid/corrupt cursors now return 400 Bad Request instead of silently restarting from the beginning - Remove unused BucketedCursor.TotalCollected field - Add a mock DatabaseClient test seam and service-level tests covering all three bugs plus a two-page pagination regression walk Co-Authored-By: Claude Fable 5 <noreply@anthropic.com>
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