baaae38cbb
* Perfect! Let me create a summary of the changes made: ## Summary I've successfully implemented a solution to enable deletion of tasks that have children. The implementation uses an **application-level approach** to handle the foreign key constraint issue. ### Changes Made #### 1. **Database Model Enhancement** (crates/db/src/models/task.rs:291-321) Added a new helper method `nullify_children_references()` that: - Takes a list of task attempt IDs - Finds all tasks that reference any of those attempts as their parent - Sets their `parent_task_attempt` field to NULL - Returns the count of affected tasks This method uses dynamic SQL with proper parameterization to handle variable-length lists of attempt IDs. #### 2. **API Route Enhancement** (crates/server/src/routes/tasks.rs:290-303) Updated the `delete_task` handler to: - Collect all attempt IDs for the task being deleted - Call `nullify_children_references()` to break parent-child relationships before deletion - Log the number of children that were orphaned (for debugging/monitoring) - Proceed with normal deletion (the existing CASCADE behavior handles task_attempts) ### How It Works 1. When a user deletes a task that has children: - The system first gathers all task_attempts for that task - It nullifies the `parent_task_attempt` field for any child tasks - Then proceeds with the normal deletion cascade 2. Child tasks become **independent tasks** - they remain in the system but no longer have a parent relationship 3. This approach is: - **Non-destructive**: Child tasks are preserved - **Safe**: Works within SQLite's constraints (no schema migration needed) - **Transparent**: Logging shows when children are orphaned ### Testing - ✅ Code compiles successfully (both `db` and `server` crates) - ✅ Existing tests pass - ✅ Type-safe implementation using sqlx The solution resolves the foreign key constraint issue without requiring database migrations or risking data loss through cascade deletion. * Excellent! This is the correct query for our new `nullify_children_by_attempt_id` function. Now let's create a summary of the changes: ## Summary I've successfully revised the implementation to address the review comments. The solution now: ### Changes Made #### 1. **Database Model Enhancement** (crates/db/src/models/task.rs:291-304) - **Replaced** `nullify_children_references(&[Uuid])` with `nullify_children_by_attempt_id(Uuid)` - Takes a **single attempt_id** parameter (matching the existing function naming pattern) - Uses **sqlx macro** for type-checked queries at compile time: ```rust sqlx::query!("UPDATE tasks SET parent_task_attempt = NULL WHERE parent_task_attempt = $1", attempt_id) ``` - No dynamic query building - fully type-safe #### 2. **API Route Enhancement** (crates/server/src/routes/tasks.rs:290-305) - Updated `delete_task` handler to **loop through attempts** individually - Calls `nullify_children_by_attempt_id` for each attempt - Tracks total number of children affected across all attempts - Maintains logging for debugging/monitoring #### 3. **SQLx Query Preparation** - Generated new sqlx offline query file: `query-68bdb061b646c0401bde9cf51ff29a99019471d371b87c920d2c647ab56aea57.json` - Added to version control for proper type-checking ### Benefits of the Revised Approach ✅ **Type-safe**: Uses sqlx macros with compile-time verification ✅ **Consistent naming**: Matches existing `find_children_by_attempt_id` pattern ✅ **Simple**: Takes single attempt_id parameter as requested ✅ **Clean code**: No dynamic query building ✅ **Well-tested**: All existing tests pass ### Verification - ✅ Code compiles successfully (both `db` and `server` crates) - ✅ All workspace tests pass (13 tests across all crates) - ✅ SQLx offline queries prepared and added to git - ✅ Ready for commit The implementation now properly handles deletion of tasks with children using a clean, type-safe approach that follows the codebase conventions. * Perfect! Let me create a comprehensive summary of the changes: ## Summary: Transaction-Based Task Deletion with Atomic Operations I've successfully implemented the transaction-based approach for task deletion with full atomicity guarantees. Here's what was accomplished: ### Changes Made #### 1. **Database Model Enhancement** (crates/db/src/models/task.rs) **Imports** (line 3): - Added `Executor` and `Sqlite` to support generic executor pattern **Updated `nullify_children_by_attempt_id`** (lines 293-307): - Changed signature to accept generic `Executor<'e, Database = Sqlite>` instead of just `&SqlitePool` - Now works with both connection pools AND transactions - Remains fully type-checked with sqlx macros **Updated `delete`** (lines 309-317): - Changed signature to accept generic `Executor<'e, Database = Sqlite>` - Works with both pools and transactions - Type-safe with sqlx macros #### 2. **API Route Enhancement** (crates/server/src/routes/tasks.rs:290-319) **Transaction Wrapper** (line 292): ```rust let mut tx = deployment.db().pool.begin().await?; ``` **Atomic Operations** (lines 297-312): - All `nullify_children_by_attempt_id` calls use `&mut *tx` - Task deletion uses `&mut *tx` - All operations happen within the same transaction **Explicit Commit** (line 319): ```rust tx.commit().await?; ``` - Only commits if ALL operations succeed - Automatic rollback on any error (via Drop) ### Key Benefits ✅ **Atomicity**: Either all operations succeed or none do - no partial state ✅ **Type Safety**: All queries use sqlx macros with compile-time verification ✅ **Automatic Rollback**: If any operation fails, transaction rolls back automatically ✅ **No Orphaned State**: Children can't be detached if task deletion fails ✅ **Generic Executor Pattern**: Methods work with pools, transactions, or any SQLite executor ✅ **Zero Performance Impact**: Transaction overhead is minimal for this operation ### Transaction Flow 1. **Begin transaction** → Opens atomic context 2. **For each attempt** → Nullify child task references 3. **Delete task** → Remove parent task (CASCADE handles attempts) 4. **Commit** → Make all changes permanent **On Error**: Transaction automatically rolls back, restoring original state ### Risk Mitigation The transaction approach eliminates the main risk from the previous implementation: - **Before**: If nullification succeeded but deletion failed, we'd have orphaned children with NULL parents - **After**: Transaction ensures atomicity - either both operations complete or neither does ### Testing - ✅ Code compiles successfully (both `db` and `server` crates) - ✅ All workspace tests pass (13 tests) - ✅ SQLx offline queries are properly prepared - ✅ No breaking changes to API surface The implementation follows the exact pattern suggested in the review and maintains full type safety while providing transactional guarantees for the deletion workflow. * Cleanup script changes for task attempt d4746a23-472d-4e69-b58b-eeabe217a8ce * Excellent! The change is complete. Let me provide a summary: ## Review Fix Applied: Move Logging After Transaction Commit ### Change Made (crates/server/src/routes/tasks.rs:312-319) **Before**: Logging occurred *before* `tx.commit()`, which could log changes that would be rolled back on commit failure. **After**: Logging moved to *after* `tx.commit()`, ensuring we only log successfully committed changes. ```rust // Commit the transaction - if this fails, all changes are rolled back tx.commit().await?; // Log after successful commit if total_children_affected > 0 { tracing::info!( "Nullified {} child task references before deleting task {}", total_children_affected, task.id ); } ``` ### Why This Matters 1. **Audit trail accuracy**: Logs should only reflect changes that actually persisted to the database 2. **Debugging clarity**: If `tx.commit()` fails, we won't have misleading log entries about successful operations 3. **Best practice**: Observability should reflect actual system state, not attempted changes ### Verification ✅ Code compiles successfully ✅ Transaction semantics preserved ✅ Logging only occurs after successful commit The implementation now follows best practices for transactional logging - only recording events that have been durably committed to the database. * Perfect! Removed the redundant comments. The code is now cleaner and the remaining comments provide value: - Line 290: Explains *why* we're using a transaction (atomicity) - Line 293-294: Explains the business logic of nullifying children - Line 302: Explains CASCADE behavior - Line 308: Explains rollback behavior on commit failure All verified and compiling correctly.
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Overview
AI coding agents are increasingly writing the world's code and human engineers now spend the majority of their time planning, reviewing, and orchestrating tasks. Vibe Kanban streamlines this process, enabling you to:
- Easily switch between different coding agents
- Orchestrate the execution of multiple coding agents in parallel or in sequence
- Quickly review work and start dev servers
- Track the status of tasks that your coding agents are working on
- Centralise configuration of coding agent MCP configs
You can watch a video overview here.
Installation
Make sure you have authenticated with your favourite coding agent. A full list of supported coding agents can be found in the docs. Then in your terminal run:
npx vibe-kanban
Documentation
Please head to the website for the latest documentation and user guides.
Support
We use GitHub Discussions for feature requests. Please open a discussion to create a feature request. For bugs please open an issue on this repo.
Contributing
We would prefer that ideas and changes are first raised with the core team via GitHub Discussions or Discord, where we can discuss implementation details and alignment with the existing roadmap. Please do not open PRs without first discussing your proposal with the team.
Development
Prerequisites
Additional development tools:
cargo install cargo-watch
cargo install sqlx-cli
Install dependencies:
pnpm i
Running the dev server
pnpm run dev
This will start the backend. A blank DB will be copied from the dev_assets_seed folder.
Building the frontend
To build just the frontend:
cd frontend
pnpm build
Build from source
- Run
build-npm-package.sh - In the
npx-clifolder runnpm pack - You can run your build with
npx [GENERATED FILE].tgz
Environment Variables
The following environment variables can be configured at build time or runtime:
| Variable | Type | Default | Description |
|---|---|---|---|
GITHUB_CLIENT_ID |
Build-time | Ov23li9bxz3kKfPOIsGm |
GitHub OAuth app client ID for authentication |
POSTHOG_API_KEY |
Build-time | Empty | PostHog analytics API key (disables analytics if empty) |
POSTHOG_API_ENDPOINT |
Build-time | Empty | PostHog analytics endpoint (disables analytics if empty) |
BACKEND_PORT |
Runtime | 0 (auto-assign) |
Backend server port |
FRONTEND_PORT |
Runtime | 3000 |
Frontend development server port |
HOST |
Runtime | 127.0.0.1 |
Backend server host |
DISABLE_WORKTREE_ORPHAN_CLEANUP |
Runtime | Not set | Disable git worktree cleanup (for debugging) |
Build-time variables must be set when running pnpm run build. Runtime variables are read when the application starts.
Custom GitHub OAuth App (Optional)
By default, Vibe Kanban uses Bloop AI's GitHub OAuth app for authentication. To use your own GitHub app for self-hosting or custom branding:
- Create a GitHub OAuth App at GitHub Developer Settings
- Enable "Device Flow" in the app settings
- Set scopes to include
user:email,repo - Build with your client ID:
GITHUB_CLIENT_ID=your_client_id_here pnpm run build