feauture/catalogo-clases-inventario-UME

backend/api/v1/modules/a76/classes/models.py

@@ -42,6 +42,12 @@ class Class(Base, TenantScopedMixin, TimestampMixin):
             ["a76.units_of_measure.code", "a76.units_of_measure.tenant_id",
                 "a76.units_of_measure.company_id"],
         ),
+        ForeignKeyConstraint(
+            ["stock_unit_of_measure", "tenant_id", "company_id"],
+            ["a76.units_of_measure.code", "a76.units_of_measure.tenant_id",
+                "a76.units_of_measure.company_id"],
+            name="fk_classes_stock_uom",
+        ),
         UniqueConstraint(
             "tenant_id",
             "company_id",
@@ -69,6 +75,9 @@ class Class(Base, TenantScopedMixin, TimestampMixin):
     unit_of_measure: Mapped[Optional[str]] = mapped_column(
         String(5)
     )  # UNIMED - homologated from UNIMEDIDA
+    stock_unit_of_measure: Mapped[Optional[str]] = mapped_column(
+        String(5)
+    )  # UMEXISTENCIA - UM Existencia (SCAII/inventory)
 
     # Tariff fractions
     fraction: Mapped[Optional[str]] = mapped_column(String(20))  # FRACCION
@@ -97,7 +106,11 @@ class Class(Base, TenantScopedMixin, TimestampMixin):
     )
     unit_of_measure_info: Mapped[Optional["UnitOfMeasure"]] = relationship(
         foreign_keys=[unit_of_measure]
-    )        
+    )
+    stock_unit_of_measure_info: Mapped[Optional["UnitOfMeasure"]] = relationship(
+        foreign_keys=[stock_unit_of_measure],
+        viewonly=True,
+    )
 
     # Inverse relationship with GParts that have this class
     parts: Mapped[list["Part"]] = relationship(