Partidas BOM y partes para SCAI

backend/api/v1/modules/a24/inv/part_countries/models.py

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+"""
+Modelo ORM para la relación entre partes y países - Anexo 24
+"""
+
+from datetime import datetime
+from typing import TYPE_CHECKING, Optional
+from decimal import Decimal
+from api.v1.common.base_models import TenantScopedMixin, TimestampMixin
+from core.database import Base
+from sqlalchemy import (
+    Integer,
+    PrimaryKeyConstraint,
+    String,
+    Boolean,
+    ForeignKeyConstraint,
+    DateTime,
+    Numeric,
+)
+from sqlalchemy.orm import Mapped, mapped_column, relationship
+
+if TYPE_CHECKING:
+    from api.v1.modules.a76.parts.models import Part
+
+
+class PartCountry(Base, TenantScopedMixin, TimestampMixin):
+    """
+    Tabla inv_parte_paises: Relación entre partes y países.
+    Almacena información de países de origen, preferencias, certificados y omisiones.
+    """
+    __tablename__ = "inv_parte_paises"
+    __table_args__ = (
+        PrimaryKeyConstraint("id", name="inv_parte_paises_pkey"),
+        ForeignKeyConstraint(
+            ["part_id"], ["a76.parts.id"], name="fk_inv_parte_paises_part"
+        ),
+        {"schema": "a24", "extend_existing": True},
+    )
+
+    id: Mapped[int] = mapped_column(Integer, primary_key=True, autoincrement=True)
+    part_id: Mapped[int] = mapped_column(Integer, nullable=False)
+    country_code: Mapped[str] = mapped_column(String(3), nullable=False)
+    
+    # Información de fracciones
+    fraction: Mapped[Optional[str]] = mapped_column(String(20))
+    is_origin: Mapped[bool] = mapped_column(Boolean, default=False)
+    
+    # Preferencia comercial
+    preference: Mapped[str] = mapped_column(String(15), default="GENERAL")  # GENERAL, PROSEC, ALADI, TLCS
+    
+    # Certificado de origen
+    has_certificate: Mapped[bool] = mapped_column(Boolean, default=False)
+    certificate_number: Mapped[Optional[str]] = mapped_column(String(50))
+    end_date: Mapped[Optional[datetime]] = mapped_column(DateTime)
+    
+    # Fracciones anteriores a 7 meses
+    previous_fractions_7m: Mapped[bool] = mapped_column(Boolean, default=False)
+    
+    # Omisiones (importación/exportación)
+    omission_import: Mapped[bool] = mapped_column(Boolean, default=False)
+    omission_export: Mapped[bool] = mapped_column(Boolean, default=False)
+    
+    # Porcentajes
+    import_percentage: Mapped[Optional[Decimal]] = mapped_column(Numeric(5, 2))
+    export_percentage: Mapped[Optional[Decimal]] = mapped_column(Numeric(5, 2))
+    
+    # Sector (para referencia)
+    sector: Mapped[Optional[str]] = mapped_column(String(10))
+
+    # Relación
+    part: Mapped["Part"] = relationship("Part", back_populates="inv_countries")
+
+    def __repr__(self) -> str:
+        return f"<PartCountry(id={self.id}, part={self.part_id}, country='{self.country_code}', preference='{self.preference}')>"