Initial commit: Wallet App - FastAPI backend with React frontend for personal finance tracking

backend/app/models.py

@@ -0,0 +1,43 @@
+"""Database models for the wallet app."""
+
+from datetime import datetime
+from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Enum
+from sqlalchemy.orm import relationship
+from app.database import Base
+import enum
+
+
+class EntryType(str, enum.Enum):
+    """Type of wallet entry."""
+    INCOME = "income"
+    EXPENSE = "expense"
+
+
+class User(Base):
+    """User model for authentication."""
+    __tablename__ = "users"
+
+    id = Column(Integer, primary_key=True, index=True)
+    username = Column(String, unique=True, index=True)
+    email = Column(String, unique=True, index=True)
+    hashed_password = Column(String)
+    created_at = Column(DateTime, default=datetime.utcnow)
+
+    # Relationships
+    wallet_entries = relationship("WalletEntry", back_populates="user", cascade="all, delete-orphan")
+
+
+class WalletEntry(Base):
+    """Wallet entry model for tracking income and expenses."""
+    __tablename__ = "wallet_entries"
+
+    id = Column(Integer, primary_key=True, index=True)
+    user_id = Column(Integer, ForeignKey("users.id"), index=True)
+    amount = Column(Float)
+    entry_type = Column(Enum(EntryType), index=True)
+    description = Column(String)
+    created_at = Column(DateTime, default=datetime.utcnow, index=True)
+    updated_at = Column(DateTime, default=datetime.utcnow, onupdate=datetime.utcnow)
+
+    # Relationships
+    user = relationship("User", back_populates="wallet_entries")