▸case-06 Our DBA team needs a standalone PostgreSQL 16 SQL script to set up logical replication, create publication slots, and configure write-ahead log parameters in postgresql.conf for a database migration across Linux servers. | pass→pass | 20,525 | 18,324 | -11% | 1 | 1 | 0% | 3,727 | 4,796 | +29% | 0 | 0 | — |
▸case-01 I am running into severe database performance bottlenecks with a Django 5.x endpoint that fetches customer orders along with their related items and profiles. Can you help me refactor the query and view code to eliminate the repeated queries? Please provide the complete refactored view code, a pytest test case that verifies query efficiency, and a summary of performance and security considerations. | fail→fail | 19,666 | 24,053 | +22% | 1 | 1 | 0% | 3,887 | 5,080 | +31% | 0 | 0 | — |
▸case-02 We need to implement a heavy data-export feature in our Django REST Framework app without blocking incoming web requests. Could you write an asynchronous background task workflow integrated with a DRF endpoint? Please supply the production-ready view and task code, appropriate error handling, unit tests for the asynchronous flow, and deployment setup notes. | fail→fail | 33,508 | 24,646 | -26% | 1 | 1 | 0% | 6,903 | 6,457 | -6% | 0 | 0 | — |
▸case-03 Our team is setting up custom JWT authentication and granular object-level permission guards for a multi-tenant Django project. Could you design this solution for us? I need the serializer and view implementations, custom permission class logic, complete exception handling, and pytest-django test cases covering both authorized and forbidden access paths. | fail→fail | 37,538 | 33,396 | -11% | 1 | 1 | 0% | 8,251 | 8,980 | +9% | 0 | 0 | — |
▸case-04 We are building a lightweight Python REST API using Flask 3.0 and SQLAlchemy 2.0. We need to implement database connection pooling using SQLAlchemy's QueuePool and configure Flask-JWT-Extended for token-based authentication. Please provide a production-ready Flask application factory setup. | pass→pass | 28,805 | 20,572 | -29% | 1 | 1 | 0% | 6,202 | 5,752 | -7% | 0 | 0 | — |
▸case-05 We are constructing a high-performance microservice using FastAPI, AsyncPG, and Pydantic v2. How should we configure dependency injection for asynchronous database session management and create CRUD routes for user registration? | pass→pass | 23,289 | 24,305 | +4% | 1 | 1 | 0% | 4,723 | 6,446 | +36% | 0 | 0 | — |
▸case-07 We are writing pytest unit tests for a Django e-commerce application with User, Product, and Order models. Standard fixtures are becoming unwieldy. Should we construct model instances using simple helper functions or implement class-based test data generators? | pass→pass | 17,182 | 11,962 | -30% | 1 | 1 | 0% | 2,901 | 3,514 | +21% | 0 | 0 | — |
▸case-08 In a Django 5.x application, an endpoint retrieves Author models along with their single Publisher (ForeignKey) and multiple Book models (ManyToManyField). Model serialization in DRF causes 50+ SQL queries for 10 authors. We want to reduce this to 2 queries using ORM methods. | pass→pass | 11,565 | 12,056 | +4% | 1 | 1 | 0% | 2,239 | 3,752 | +68% | 0 | 0 | — |
▸case-09 We are building a real-time collaborative dashboard in Django 5.x requiring WebSocket connections to stream server events to clients. Should we use standard WSGI with polling, or integrate an asynchronous protocol server extension? | fail→pass | 18,331 | 15,969 | -13% | 1 | 1 | 0% | 3,103 | 4,235 | +36% | 0 | 0 | — |
▸case-10 We are refactoring our Django settings.py file from hardcoded strings to secure environment-variable parsing for SECRET_KEY, DEBUG, and DATABASE_URL. What Python library should we use for parsing standard .env files into typed Django settings? | pass→pass | 11,157 | 9,307 | -17% | 1 | 1 | 0% | 2,121 | 3,056 | +44% | 0 | 0 | — |
▸case-11 Our Django application needs per-row permissions so that specific users can edit individual Document instances regardless of their global group permissions. Should we write custom middleware or use a standard object-level permissions package? | pass→pass | 16,321 | 13,802 | -15% | 1 | 1 | 0% | 2,539 | 3,809 | +50% | 0 | 0 | — |
▸case-17 We need to store unstructured user preference key-value pairs and tag lists in a Django 5.x model targeting a PostgreSQL database. Should we use serialized TextFields or native PostgreSQL ORM fields? | pass→pass | 14,183 | 29,514 | +108% | 1 | 1 | 0% | 2,459 | 3,754 | +53% | 0 | 0 | — |
▸case-12 We are deploying a containerized Django application to production without a dedicated web server like Nginx in front of Gunicorn. How should we configure Django to serve static files securely and efficiently directly from Python? | pass→pass | 16,491 | 15,387 | -7% | 1 | 1 | 0% | 2,713 | 4,118 | +52% | 0 | 0 | — |
▸case-13 We want to update a Django template live when a user submits a form (inline table edit) without requiring a full page reload or building a separate SPA frontend with React. What library pairs seamlessly with Django templates for HTML-over-the-wire? | pass→pass | 13,500 | 13,390 | -1% | 1 | 1 | 0% | 2,268 | 3,953 | +74% | 0 | 0 | — |
▸case-14 Our team needs to profile database queries and execution time directly inside a staging Django application's REST endpoints to identify N+1 queries. What Django-native profiling tool should we add to middleware for request-level inspection? | pass→pass | 13,126 | 12,613 | -4% | 1 | 1 | 0% | 2,044 | 3,350 | +64% | 0 | 0 | — |
▸case-15 We need to handle user profile image uploads in Django and store them directly in an Amazon S3 bucket instead of the local media directory. What package provides the storage backend engine for Django's file storage framework? | pass→fail | 6,157 | 4,793 | -22% | 1 | 1 | 0% | 1,116 | 2,263 | +103% | 0 | 0 | — |
▸case-16 In our Django application, view handlers are growing over 300 lines long with payment processing, email triggers, and database mutations mixed together. What architectural pattern should we implement to separate business logic from views and models? | pass→pass | 17,282 | 19,736 | +14% | 1 | 1 | 0% | 2,782 | 4,988 | +79% | 0 | 0 | — |
▸case-18 In Django 5.x, we have an API view that performs two independent HTTP calls to external third-party microservices. To prevent blocking the worker thread while waiting for network I/O, how should we write the view? | pass→pass | 13,303 | 13,459 | +1% | 1 | 1 | 0% | 2,535 | 4,098 | +62% | 0 | 0 | — |
▸case-19 Two simultaneous requests to a Django 5.x checkout endpoint are causing race conditions that double-deduct inventory balances for Product models. How should we enforce database-level row locking inside a transaction? | pass→pass | 12,452 | 16,887 | +36% | 1 | 1 | 0% | 2,197 | 4,634 | +111% | 0 | 0 | — |
▸case-20 We are exposing a REST API built with Django REST Framework and need to implement token authentication where clients receive access and refresh tokens. Which standard package should we integrate with DRF settings? | pass→pass | 6,120 | 6,552 | +7% | 1 | 1 | 0% | 1,072 | 2,724 | +154% | 0 | 0 | — |
▸case-21 We need standard username/password authentication, password hashing, user session management, and group-based authorization in a new Django project. Should we install an external OAuth or custom auth library, or use built-in components? | pass→pass | 10,447 | 12,902 | +23% | 1 | 1 | 0% | 1,870 | 3,793 | +103% | 0 | 0 | — |
▸case-22 When creating an Order record in Django, we must also create multiple OrderItem records. If creating an OrderItem fails, the created Order must be completely rolled back. What Django ORM feature guarantees this atomicity? | pass→pass | 5,550 | 7,902 | +42% | 1 | 1 | 0% | 1,085 | 2,689 | +148% | 0 | 0 | — |