fix(db): make task edit and tag replace atomic (#643) by aryanorastar · Pull Request #653 · CCExtractor/taskwarrior-flutter

aryanorastar · 2026-08-16T05:58:00Z

Summary

saveEditedTaskInDB updated task fields then called setTagsForTask outside a shared transaction, so a crash between those steps could leave description/project updated with stale tags.
Wrap the field update and tag delete/insert in a single transaction, reading the task id via txn (no nested transaction).
Add a TaskDatabase test that edits description + tags in one call and asserts both land.

Fixes #643

Test plan

flutter test test/api_service_test.dart --name saveEditedTaskInDB
Manual: edit an existing task’s description and tags, force-kill mid-save if practical, confirm no split state after restart

Honest gaps

Physical / on-device smoke not run (no kit).

Summary by CodeRabbit

Bug Fixes
- Editing a task now updates its details and tags together, preventing partial or inconsistent changes.
- Blank tags are excluded when saving edited tasks.
Tests
- Added coverage verifying that task descriptions, projects, priorities, due dates, and tags are updated correctly.

Wrap saveEditedTaskInDB field update and tag replacement in one transaction so a crash between them cannot leave stale tags.

coderabbitai · 2026-08-16T05:58:22Z

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Review details

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: 0e9763ff-31ba-4e72-8d57-cc89f06e164b

📥 Commits

Reviewing files that changed from the base of the PR and between 7885344 and 0c99a9b.

📒 Files selected for processing (2)

lib/app/v3/db/task_database.dart
test/api_service_test.dart

📝 Walkthrough

Walkthrough

saveEditedTaskInDB now updates task fields and replaces tags atomically. Tests use a temporary documents directory and verify all edited task values after reloading the task.

Changes

Task editing consistency

Layer / File(s)	Summary
Atomic task and tag save `lib/app/v3/db/task_database.dart`	`saveEditedTaskInDB` performs the task update, task ID lookup, tag deletion, and nonblank tag insertion within one transaction.
Database test coverage `test/api_service_test.dart`	The test harness mocks a temporary documents directory and removes it during teardown. A database test verifies edited task fields and tags after reload.

Estimated code review effort: 3 (Moderate) | ~20 minutes

Merge Risk: 🟡 Moderate · up to 78853

Task edits are grouped atomically, but clearing all tags can still leave old tags attached, causing stale task metadata; test database cleanup may also fail on Windows. The PR is not merge-ready until the empty-tag replacement path is corrected.

🚥 Pre-merge checks | ✅ 5

✅ Passed checks (5 passed)

Check name	Status	Explanation
Linked Issues check	✅ Passed	The changes satisfy issue `#643` by using one transaction for task fields and tags, the transaction context, and no nested transaction.
Out of Scope Changes check	✅ Passed	The database test setup and atomicity test directly support the linked issue and PR objectives.
Docstring Coverage	✅ Passed	No functions found in the changed files to evaluate docstring coverage. Skipping docstring coverage check.
Title check	✅ Passed	The title clearly identifies the atomic database fix for task edits and tag replacement, which matches the pull request's main change.
Description check	✅ Passed	The description explains the atomic transaction change, identifies issue `#643`, and documents the focused test and known gap, although it omits some template sections.

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Actionable comments posted: 2

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Inline comments:
In `@lib/app/v3/db/task_database.dart`:
- Around line 271-294: Update the tag replacement logic to resolve the task ID
and delete existing Tags for the task regardless of whether newTags is empty;
retain insertion only for nonblank tags in newTags, so an empty list clears all
existing tags.

In `@test/api_service_test.dart`:
- Around line 52-55: Add a tearDown callback within the TaskDatabase test group
that awaits taskDatabase.close() after each test, ensuring the FFI SQLite
connection is closed before tearDownAll deletes docsDir.

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ℹ️ Review info

⚙️ Run configuration

Configuration used: defaults

Review profile: CHILL

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Run ID: 56f834d0-d6f8-43fd-94ee-63e5cb85779f

📥 Commits

Reviewing files that changed from the base of the PR and between f058b4a and 7885344.

📒 Files selected for processing (2)

lib/app/v3/db/task_database.dart
test/api_service_test.dart

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Always replace tags inside the edit transaction (including []), and close each TaskDatabase in tearDown before temp dir cleanup.

aryanorastar · 2026-08-16T06:03:03Z

Addressed both review notes:

empty newTags now clears tags (replace semantics; matches the details save path)
close each test DB in tearDown before temp docs cleanup

aryanorastar force-pushed the fix/643-atomic-edit-task branch from 8ba2e8b to 3f3aa63 Compare August 16, 2026 05:58

fix(db): make task edit and tag replace atomic (CCExtractor#643)

7885344

Wrap saveEditedTaskInDB field update and tag replacement in one transaction so a crash between them cannot leave stale tags.

aryanorastar force-pushed the fix/643-atomic-edit-task branch from 3f3aa63 to 7885344 Compare August 16, 2026 05:58

coderabbitai Bot reviewed Aug 16, 2026

View reviewed changes

Comment thread lib/app/v3/db/task_database.dart Outdated

Comment thread test/api_service_test.dart

fix(db): clear tags on empty edit list and close test DB

0c99a9b

Always replace tags inside the edit transaction (including []), and close each TaskDatabase in tearDown before temp dir cleanup.

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fix(db): make task edit and tag replace atomic (#643) - #653

fix(db): make task edit and tag replace atomic (#643)#653
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