110 lines
6.4 KiB
Python
110 lines
6.4 KiB
Python
from datetime import datetime
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from decimal import Decimal
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from sqlalchemy import Boolean, DateTime, ForeignKey, Integer, Numeric, String, Text, UniqueConstraint, func
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.db.database import Base
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class InventoryCategory(Base):
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__tablename__ = "inventory_categories"
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id: Mapped[int] = mapped_column(primary_key=True)
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name: Mapped[str] = mapped_column(String(160), unique=True, index=True)
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slug: Mapped[str] = mapped_column(String(180), unique=True, index=True)
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description: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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items: Mapped[list["InventoryItem"]] = relationship(back_populates="category")
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class InventoryLocation(Base):
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__tablename__ = "inventory_locations"
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id: Mapped[int] = mapped_column(primary_key=True)
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name: Mapped[str] = mapped_column(String(160), unique=True, index=True)
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description: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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items: Mapped[list["InventoryItem"]] = relationship(back_populates="location")
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class InventorySupplier(Base):
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__tablename__ = "inventory_suppliers"
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id: Mapped[int] = mapped_column(primary_key=True)
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name: Mapped[str] = mapped_column(String(180), unique=True, index=True)
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contact_name: Mapped[str | None] = mapped_column(String(180), nullable=True)
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email: Mapped[str | None] = mapped_column(String(255), nullable=True)
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phone: Mapped[str | None] = mapped_column(String(80), nullable=True)
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website: Mapped[str | None] = mapped_column(String(255), nullable=True)
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customer_number: Mapped[str | None] = mapped_column(String(120), nullable=True)
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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items: Mapped[list["InventoryItem"]] = relationship(back_populates="supplier")
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class InventoryItem(Base):
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__tablename__ = "inventory_items"
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__table_args__ = (UniqueConstraint("sku", name="uq_inventory_items_sku"),)
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id: Mapped[int] = mapped_column(primary_key=True)
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sku: Mapped[str] = mapped_column(String(40), unique=True, index=True)
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name: Mapped[str] = mapped_column(String(255), index=True)
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description: Mapped[str | None] = mapped_column(Text, nullable=True)
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category_id: Mapped[int | None] = mapped_column(ForeignKey("inventory_categories.id", ondelete="SET NULL"), nullable=True, index=True)
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manufacturer: Mapped[str | None] = mapped_column(String(180), nullable=True, index=True)
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manufacturer_part_number: Mapped[str | None] = mapped_column(String(180), nullable=True, index=True)
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supplier_id: Mapped[int | None] = mapped_column(ForeignKey("inventory_suppliers.id", ondelete="SET NULL"), nullable=True, index=True)
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supplier_part_number: Mapped[str | None] = mapped_column(String(180), nullable=True, index=True)
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compatible_devices: Mapped[str | None] = mapped_column(Text, nullable=True)
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location_id: Mapped[int | None] = mapped_column(ForeignKey("inventory_locations.id", ondelete="SET NULL"), nullable=True, index=True)
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quantity_on_hand: Mapped[int] = mapped_column(Integer, default=0, server_default="0")
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quantity_reserved: Mapped[int] = mapped_column(Integer, default=0, server_default="0")
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quantity_available: Mapped[int] = mapped_column(Integer, default=0, server_default="0", index=True)
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reorder_level: Mapped[int] = mapped_column(Integer, default=0, server_default="0")
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unit: Mapped[str] = mapped_column(String(40), default="Stk.", server_default="Stk.")
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purchase_price_cents: Mapped[int | None] = mapped_column(Integer, nullable=True)
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selling_price_cents: Mapped[int | None] = mapped_column(Integer, nullable=True)
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currency: Mapped[str] = mapped_column(String(3), default="EUR", server_default="EUR")
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tax_rate_percent: Mapped[Decimal] = mapped_column(Numeric(5, 2), default=Decimal("19.00"), server_default="19.00")
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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is_active: Mapped[bool] = mapped_column(Boolean, default=True, server_default="true", index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
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updated_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now(), onupdate=func.now())
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category: Mapped[InventoryCategory | None] = relationship(back_populates="items", lazy="joined")
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supplier: Mapped[InventorySupplier | None] = relationship(back_populates="items", lazy="joined")
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location: Mapped[InventoryLocation | None] = relationship(back_populates="items", lazy="joined")
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movements: Mapped[list["InventoryStockMovement"]] = relationship(
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back_populates="item",
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cascade="all, delete-orphan",
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order_by="InventoryStockMovement.created_at.desc()",
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)
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class InventoryStockMovement(Base):
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__tablename__ = "inventory_stock_movements"
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id: Mapped[int] = mapped_column(primary_key=True)
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item_id: Mapped[int] = mapped_column(ForeignKey("inventory_items.id", ondelete="CASCADE"), index=True)
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movement_type: Mapped[str] = mapped_column(String(40), index=True)
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quantity: Mapped[int] = mapped_column(Integer)
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reason: Mapped[str] = mapped_column(String(255), default="", server_default="")
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reference_type: Mapped[str | None] = mapped_column(String(80), nullable=True, index=True)
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reference_id: Mapped[int | None] = mapped_column(Integer, nullable=True, index=True)
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note: Mapped[str | None] = mapped_column(Text, nullable=True)
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actor_user_id: Mapped[int | None] = mapped_column(ForeignKey("users.id", ondelete="SET NULL"), nullable=True, index=True)
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created_at: Mapped[datetime] = mapped_column(DateTime(timezone=True), server_default=func.now())
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item: Mapped[InventoryItem] = relationship(back_populates="movements")
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actor = relationship("User", lazy="joined")
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@property
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def actor_username(self) -> str:
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return self.actor.username if self.actor is not None else ""
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