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Implement complete assessment and assignment system with submissions, grading, and quiz attempts.
## Components Implemented
### Entities
- Assignment entity with instructions, due dates, and max scores
- Submission entity with content, files, grading, and status workflow
- Assessment entity with questions (JSON), time limits, and attempt controls
- AssessmentAttempt entity with answers (JSON), scoring, and tracking
- Enums: SubmissionStatus (DRAFT, SUBMITTED, GRADED, RETURNED)
### API Endpoints
#### Public
- GET /api/v1/assignments/lesson/{lessonId} - Get lesson assignments
- GET /api/v1/assignments/{id} - Get assignment details
- GET /api/v1/assessments/lesson/{lessonId} - Get lesson assessments
- GET /api/v1/assessments/{id} - Get assessment details
#### Authenticated (Students)
- POST /api/v1/assignments/submissions - Create/update submission
- POST /api/v1/assignments/submissions/{id}/submit - Submit assignment
- GET /api/v1/assignments/submissions/my - My submissions
- GET /api/v1/assignments/submissions/{id} - Get my submission
- POST /api/v1/assessments/attempts/start - Start assessment attempt
- POST /api/v1/assessments/attempts/{id}/submit - Submit attempt
- GET /api/v1/assessments/{assessmentId}/attempts/my - My attempts
#### Admin/Instructor
- POST /api/v1/assignments - Create assignment
- PUT /api/v1/assignments/{id} - Update assignment
- DELETE /api/v1/assignments/{id} - Delete assignment
- GET /api/v1/assignments/{assignmentId}/submissions - All submissions
- POST /api/v1/assignments/submissions/{id}/grade - Grade submission
- POST /api/v1/assessments - Create assessment
- PUT /api/v1/assessments/{id} - Update assessment
- DELETE /api/v1/assessments/{id} - Delete assessment
- GET /api/v1/assessments/{assessmentId}/attempts - All attempts
### Services
- AssignmentService with CRUD operations
- SubmissionService with draft/submit workflow and grading
- AssessmentService with quiz management and attempt validation
### Features
- Assignment creation with due dates and max scores
- Submission workflow (DRAFT → SUBMITTED → GRADED → RETURNED)
- Automatic grading tracking (grader, timestamp)
- Assessment quiz with JSON-based questions and answers
- Attempt limit validation
- Automatic attempt numbering
- Score calculation and pass/fail determination
- Time limits for assessments
- File upload support for submissions
- Feedback system for graded work
- Instructor grading interface
### Database
- Flyway migration V6 (assignments, submissions, assessments, attempts tables)
- JSON columns for flexible question/answer storage
- Foreign key relationships with lessons
- Proper indexing for performance
## Technical Details
- JSON structure for quiz questions and student answers
- Submission status workflow with state validation
- Grade tracking with instructor identification
- Attempt counting and limit enforcement
- Passing score validation
- Support for resubmission (draft mode)
- Ownership validation for student submissions
🤖 Generated with [Claude Code](https://claude.com/claude-code)
Co-Authored-By: Claude <noreply@anthropic.com>
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Phase 5: Assessments & Assignments
This PR implements the complete assessment and assignment system with submissions, grading, and quiz attempts.
🎯 Components Implemented
Entities:
API Endpoints:
Public:
Authenticated (Students):
Admin/Instructor:
Features:
Database:
📊 Files Changed
24 files added:
✅ Checklist
Ready for review and merge to phase-4 ✅