4e60587fda
- Set up project structure with FastAPI - Implement SQLAlchemy models for inventory items and categories - Create database connection with SQLite - Add CRUD operations for inventory management - Implement API endpoints for categories, items, and inventory transactions - Add health check endpoint - Set up Alembic for database migrations - Update README with documentation
56 lines
2.0 KiB
Python
56 lines
2.0 KiB
Python
from sqlalchemy import Column, Integer, String, Float, DateTime, ForeignKey, Text
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from sqlalchemy.orm import relationship
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from sqlalchemy.sql import func
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from app.db.base import Base
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class Category(Base):
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"""
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Model for item categories in inventory
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"""
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__tablename__ = "categories"
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id = Column(Integer, primary_key=True, index=True)
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name = Column(String, unique=True, index=True, nullable=False)
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description = Column(Text, nullable=True)
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# Relationships
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items = relationship("Item", back_populates="category")
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class Item(Base):
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"""
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Model for inventory items
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"""
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__tablename__ = "items"
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id = Column(Integer, primary_key=True, index=True)
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name = Column(String, index=True, nullable=False)
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description = Column(Text, nullable=True)
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quantity = Column(Integer, default=0, nullable=False)
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price = Column(Float, nullable=True)
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sku = Column(String, unique=True, index=True, nullable=True)
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category_id = Column(Integer, ForeignKey("categories.id"), nullable=True)
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created_at = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
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updated_at = Column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now(), nullable=False)
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# Relationships
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category = relationship("Category", back_populates="items")
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class InventoryTransaction(Base):
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"""
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Model for tracking inventory transactions (additions/removals)
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"""
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__tablename__ = "inventory_transactions"
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id = Column(Integer, primary_key=True, index=True)
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item_id = Column(Integer, ForeignKey("items.id"), nullable=False)
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quantity_change = Column(Integer, nullable=False) # Positive for additions, negative for removals
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transaction_type = Column(String, nullable=False) # "addition", "removal", "adjustment"
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notes = Column(Text, nullable=True)
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timestamp = Column(DateTime(timezone=True), server_default=func.now(), nullable=False)
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# Relationships
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item = relationship("Item") |