Claude no tuning #7
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Pull Request Overview
This PR implements a comprehensive wallet and transaction management system for the FastAPI application. The implementation includes new database models for wallets and transactions with currency support, business logic for wallet operations, and REST API endpoints for wallet management.
Key changes include:
- Added Wallet and Transaction database models with proper relationships and constraints
- Implemented wallet creation with currency support (USD, EUR, RUB) and user limits
- Added transaction processing with currency conversion and fee calculation
- Created REST API endpoints for wallet and transaction operations
Reviewed Changes
Copilot reviewed 9 out of 11 changed files in this pull request and generated 3 comments.
Show a summary per file
| File | Description |
|---|---|
| backend/app/models/db_models.py | Added Wallet and Transaction database models with enums for Currency and TransactionType |
| backend/app/models/wallet_models.py | Created Pydantic models for wallet and transaction API operations |
| backend/app/models/init.py | Updated imports to include new wallet-related models |
| backend/app/api/routes/wallets.py | Implemented wallet management endpoints with business logic |
| backend/app/api/main.py | Added wallet router to main API router |
| backend/app/alembic/versions/add_wallet_and_transaction_models.py | Database migration for wallet and transaction tables |
| WALLET_API.md | Added API documentation (not requested) |
| detailed_issues.csv | Updated with new code quality issues |
| code_quality_summary.csv | Updated quality metrics summary |
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| id: str | ||
| user_id: str | ||
| balance: Decimal | ||
| currency: str |
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The currency field is duplicated from the base class. Remove this redundant field declaration since it's already inherited from WalletBase.
| currency: str |
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| statement = ( | ||
| select(Transaction) | ||
| .where(Transaction.wallet_id == wallet_id) | ||
| .order_by(Transaction.timestamp.desc()) |
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The return type annotation indicates list[TransactionPublic] but based on the pattern used in other endpoints, this should return a paginated response object like TransactionsPublic that includes both data and count fields.
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| class TransactionBase(SQLModel): | ||
| """Base transaction model with shared fields.""" | ||
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| amount: Decimal = Field(decimal_places=2, ge=0) |
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The constraint ge=0 prevents negative amounts, but for debit transactions, the business logic should handle negative validation rather than the model constraint. This constraint may cause issues when processing legitimate debit amounts.
| amount: Decimal = Field(decimal_places=2, ge=0) | |
| amount: Decimal = Field(decimal_places=2) |
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vodkar
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Created a backend endpoints which implements following functionality: - Introduced a new entity Wallet and Transaction. - Wallet have fields: id, user_id (foreign key to User), balance (float), currency (string). - Available currencies: USD, EUR, RUB. - Transaction have fields: id, wallet_id (foreign key to Wallet), amount (float), type (enum: 'credit', 'debit'), timestamp (datetime), currency (string). - Implemented endpoint to create a wallet for a user. - Implemented endpoint to get wallet details including current balance. - Implemented endpoint to create a transaction (credit or debit) for a wallet. # Rules for wallet - A user can have three wallets. - Wallet balance should start at 0.0. - Arithmetic operations on balance should be precise up to two decimal places. # Rules for transaction - For 'credit' transactions, the amount should be added to the wallet balance. - For 'debit' transactions, the amount should be subtracted from the wallet balance. - Ensure that the wallet balance cannot go negative. If a debit transaction would cause the balance to go negative, the transaction should be rejected with an appropriate error message. - Transaction between wallets with different currencies must be converted using a fixed exchange rate (you can hardcode some exchange rates for simplicity) and fees should be applied. Duration: 5m53s My own comments: + No tests which I didn't ask for + Short implementation + Migration was added - I didn't ask for WALLET_API.md, so it useless - Some mess with models directory now
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Implemented backend task
Created a backend endpoints which implements following functionality:
Rules for wallet
Rules for transaction
Duration: 5m53s
My own comments: