71 lines
2.9 KiB
Python
71 lines
2.9 KiB
Python
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"""Equipment model for the rental inventory catalog."""
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import uuid
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from datetime import datetime
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from sqlalchemy import String, DateTime, ForeignKey, func, Float, Integer, Text
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from sqlalchemy.orm import Mapped, mapped_column, relationship
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from app.db.base import Base
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class Equipment(Base):
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"""Represents a piece of rental equipment within a tenant account."""
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__tablename__ = "equipment"
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id: Mapped[str] = mapped_column(
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String(36), primary_key=True, default=lambda: str(uuid.uuid4())
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)
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account_id: Mapped[str] = mapped_column(
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String(36), ForeignKey("accounts.id", ondelete="CASCADE"), nullable=False
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)
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name: Mapped[str] = mapped_column(String(255), nullable=False)
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category: Mapped[str | None] = mapped_column(String(100), nullable=True)
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brand: Mapped[str | None] = mapped_column(String(255), nullable=True)
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serial_number: Mapped[str | None] = mapped_column(String(100), nullable=True, unique=True)
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barcode: Mapped[str | None] = mapped_column(String(100), nullable=True, unique=True)
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qr_code: Mapped[str | None] = mapped_column(String(500), nullable=True)
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status: Mapped[str] = mapped_column(
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String(20), nullable=False, default="available"
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) # available, rented, maintenance, retired
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purchase_price: Mapped[float | None] = mapped_column(Float, nullable=True)
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current_value: Mapped[float | None] = mapped_column(Float, nullable=True)
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weight_kg: Mapped[float | None] = mapped_column(Float, nullable=True)
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dimensions: Mapped[str | None] = mapped_column(String(255), nullable=True)
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power_watt: Mapped[float | None] = mapped_column(Float, nullable=True)
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notes: Mapped[str | None] = mapped_column(Text, nullable=True)
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custom_fields: Mapped[str | None] = mapped_column(
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Text, nullable=True
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) # JSON string for flexible custom fields
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# Location reference
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location_id: Mapped[str | None] = mapped_column(
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String(36), ForeignKey("stock_locations.id", ondelete="SET NULL"), nullable=True
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)
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# Supplier reference (optional contact)
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supplier_id: Mapped[str | None] = mapped_column(
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String(36), ForeignKey("contacts.id", ondelete="SET NULL"), nullable=True
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)
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created_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True), server_default=func.now(), nullable=False
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)
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updated_at: Mapped[datetime] = mapped_column(
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DateTime(timezone=True),
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server_default=func.now(),
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onupdate=func.now(),
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nullable=False,
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)
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# Relationships
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account: Mapped["Account"] = relationship("Account", back_populates="equipment")
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location: Mapped["StockLocation"] = relationship(
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"StockLocation", back_populates="equipment_items"
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)
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supplier: Mapped["Contact"] = relationship("Contact", foreign_keys=[supplier_id])
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def __repr__(self) -> str:
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return f"<Equipment {self.name} ({self.status})>"
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