3bdc6ff1c9
## Security Enhancements (P0) - Add input validation with max_length and numeric range constraints - Implement WebSocket token authentication via first message - Add path traversal prevention in file storage service ## Permission Enhancements (P0) - Add project member management for cross-department access - Implement is_department_manager flag for workload visibility ## Cycle Detection (P0) - Add DFS-based cycle detection for task dependencies - Add formula field circular reference detection - Display user-friendly cycle path visualization ## Concurrency & Reliability (P1) - Implement optimistic locking with version field (409 Conflict on mismatch) - Add trigger retry mechanism with exponential backoff (1s, 2s, 4s) - Implement cascade restore for soft-deleted tasks ## Rate Limiting (P1) - Add tiered rate limits: standard (60/min), sensitive (20/min), heavy (5/min) - Apply rate limits to tasks, reports, attachments, and comments ## Frontend Improvements (P1) - Add responsive sidebar with hamburger menu for mobile - Improve touch-friendly UI with proper tap target sizes - Complete i18n translations for all components ## Backend Reliability (P2) - Configure database connection pool (size=10, overflow=20) - Add Redis fallback mechanism with message queue - Add blocker check before task deletion ## API Enhancements (P3) - Add standardized response wrapper utility - Add /health/ready and /health/live endpoints - Implement project templates with status/field copying ## Tests Added - test_input_validation.py - Schema and path traversal tests - test_concurrency_reliability.py - Optimistic locking and retry tests - test_backend_reliability.py - Connection pool and Redis tests - test_api_enhancements.py - Health check and template tests Co-Authored-By: Claude Opus 4.5 <noreply@anthropic.com>
30 lines
1.3 KiB
Markdown
30 lines
1.3 KiB
Markdown
# Tasks: Add Concurrency Handling and Reliability Improvements
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## 1. Optimistic Locking
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- [x] 1.1 Add `version` integer field to Task model with default=1
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- [x] 1.2 Create database migration for version field
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- [x] 1.3 Include version in TaskResponse schema
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- [x] 1.4 Modify update_task to accept and validate version
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- [x] 1.5 Return 409 Conflict when version mismatch detected
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- [x] 1.6 Auto-increment version on successful update
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- [x] 1.7 Update frontend to send version with update requests
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- [x] 1.8 Handle 409 Conflict in frontend with user notification
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## 2. Trigger Retry Mechanism
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- [x] 2.1 Add retry configuration (max_retries=3, base_delay=1s)
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- [x] 2.2 Implement exponential backoff (1s, 2s, 4s)
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- [x] 2.3 Log each retry attempt with attempt number
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- [x] 2.4 Mark trigger as permanently failed after max retries
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- [x] 2.5 Send alert notification when trigger exhausts retries
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## 3. Soft Delete Cascade Restore
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- [x] 3.1 Modify restore_task to find all child tasks deleted at same time
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- [x] 3.2 Recursively restore child tasks with matching deleted_at timestamp
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- [x] 3.3 Add option to restore only parent vs cascade restore
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- [x] 3.4 Log restore operations in audit trail
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## 4. Testing
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- [x] 4.1 Test concurrent updates with version conflict
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- [x] 4.2 Test trigger retry on transient failure
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- [x] 4.3 Test cascade restore of parent with children
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