feat: add user quiz statistics endpoint with per-question breakdown

[Batirro]

No description provided.

[Copilot]

Pull request overview

Adds a new DRF endpoint to return per-user quiz statistics (optionally with a per-question breakdown), implemented via a dedicated service function and covered by a new test module.

Changes:

• Added GET /quizzes/{id}/stats action to QuizViewSet with include=per_question support.
• Implemented aggregation logic in quizzes/services/stats.py (get_quiz_stats + per-question aggregation).
• Added an extensive test suite for the new stats endpoint.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 4 comments.

File	Description
quizzes/views.py	Adds the stats viewset action, schema docs, and include parsing logic.
quizzes/services/stats.py	Introduces aggregation queries for totals, accuracy, study time, and optional per-question breakdown.
quizzes/serializers.py	Adds serializers for the stats response payload (QuizStatsSerializer, QuestionStatsSerializer).
quizzes/tests/test_quiz_stats.py	Adds endpoint tests for empty stats, aggregation, per-question output, isolation, and permissions.

[Copilot]

Pull request overview

Adds a new authenticated quiz “stats” endpoint to expose per-user aggregated quiz performance metrics, with an optional per-question breakdown, fitting into the quizzes app’s DRF viewset + services structure.

Changes:

• Added GET /quizzes/{id}/stats action on QuizViewSet, including include=per_question support.
• Implemented stats aggregation in a dedicated service (quizzes/services/stats.py).
• Added serializers and a comprehensive test suite for totals, study time, per-question breakdown, and permissions.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 3 comments.

File	Description
quizzes/views.py	Adds the stats viewset action, schema docs, and include parsing.
quizzes/services/stats.py	Implements query-based aggregation for overall and per-question statistics.
quizzes/serializers.py	Introduces QuizStatsSerializer and QuestionStatsSerializer for the endpoint response.
quizzes/tests/test_quiz_stats.py	Adds endpoint tests covering aggregation logic, optional expansions, and access control.

[Copilot]

Pull request overview

Adds a new DRF action endpoint to return per-user quiz statistics (including optional per-question breakdown), implemented via a dedicated service and exposed with OpenAPI documentation, with a comprehensive test suite validating aggregation and permissions.

Changes:

• Added GET /quizzes/{id}/stats/ action returning aggregated stats for the authenticated user, with ?include=per_question support.
• Introduced quizzes/services/stats.py to compute aggregate + per-question statistics.
• Added serializers and a full test module covering aggregation, include parsing, and permission behavior.

Reviewed changes

Copilot reviewed 4 out of 4 changed files in this pull request and generated 1 comment.

File	Description
quizzes/views.py	Adds stats action + shared include parsing helper and wires in service/serializer.
quizzes/services/stats.py	Implements query-based aggregation for totals and per-question breakdown.
quizzes/serializers.py	Adds QuizStatsSerializer and nested QuestionStatsSerializer for response shape.
quizzes/tests/test_quiz_stats.py	Adds coverage for empty stats, aggregation, study time, include behavior, isolation, and permissions.

[Copilot]

Pull request overview

Adds a new /quizzes/{id}/stats endpoint to expose per-user quiz performance statistics (optionally with a per-question breakdown), aligning with existing include query-param patterns used across the quizzes API.

Changes:

• Added stats action on QuizViewSet returning aggregated user statistics for a quiz, with ?include=per_question support.
• Introduced a small stats service (get_quiz_stats) plus serializers to structure the response.
• Centralized include parsing into parse_include_values() and added comprehensive endpoint tests.

Reviewed changes

Copilot reviewed 5 out of 5 changed files in this pull request and generated no comments.

Show a summary per file

File	Description
quizzes/views.py	Adds GET /quizzes/{id}/stats action and refactors metadata include parsing to shared helper.
quizzes/utils.py	New parse_include_values() helper supporting repeated and CSV include params.
quizzes/services/stats.py	New service computing aggregated stats and optional per-question breakdown.
quizzes/serializers.py	Adds QuizStatsSerializer and QuestionStatsSerializer for the endpoint response shape.
quizzes/tests/test_quiz_stats.py	Adds test coverage for aggregation, permissions, study time rules, and include parsing variants.

[MoonPrincess06]

lgtm

[Antoni-Czaplicki]

zerknij na issue na pm i upewnij sie ze wszystko jest jak w zamysle

[Antoni-Czaplicki]

komentarze po angielsku pls

[Antoni-Czaplicki]

potrzebujemy rozdzielić i zwracać i ogólne i per user, spójrz tutaj co powinno być zwracane

Solvro/pm-testownik#28 (comment)