dianshang-houduan/.superpowers/sdd/task-1-report.md

Task 1: AI Training Evaluation Persistence Report

Delivered

• Added docs/sql/2026-07-16-ai-training-evaluation.sql.
  • Creates ai_training_evaluation with a unique (student_user_id, teaching_class_id, task_id) key.
  • Persists independent help and assessment statuses, task/answer snapshots, reports, raw model responses, model names, completion times, errors, and assessment score.
  • Adds nullable student_training_answer.ai_assessment_score.
• Added AiTrainingEvaluation, AiTrainingEvaluationMapper, and its MyBatis XML mapping.
  • findByStudentClassAndTask retrieves the sole evaluation record for a student, teaching class, and task.
  • insertIgnore safely creates the record under concurrent requests.
  • claimHelp and claimAssessment transition only NOT_STARTED or FAILED rows to PROCESSING.
  • Completion and failure operations update only rows currently in PROCESSING.
• Added aiAssessmentScore to StudentTrainingAnswer, its XML result/column/dynamic insert/dynamic update mappings, and updateAiAssessmentScore for a targeted score write-back.
• Added the assessment score column to the fresh student_training_answer table DDL in StudentTrainingAnswerServiceImpl.

Test-first evidence

1. Added AiTrainingEvaluationServiceImplTest before implementation.
2. Ran mvn -Dtest=AiTrainingEvaluationServiceImplTest test before production changes.
   • Expected RED result: test compilation failed because AiTrainingEvaluation and AiTrainingEvaluationMapper did not exist.
3. Implemented the persistence files and re-ran the same targeted Maven test.
   • GREEN result: 3 tests run; 0 failures; 0 errors; 0 skipped.

Verification notes

• git diff --check completed without whitespace errors.
• Maven emitted existing project-model warnings about local Aspose systemPath dependencies and the relocated MySQL connector artifact. They do not originate from this task and did not prevent compilation or the targeted test from succeeding.