TODOS de configuracion general lista

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

@@ -14,7 +14,6 @@ from core.database import Base
 
 from api.v1.modules.a76.classes.models import Class
 from api.v1.modules.a76.general_catalogs.units_of_measure.models import UnitOfMeasure
-from api.v1.modules.a76.general_catalogs.identifiers.models import IdentifierDetail
 
 if TYPE_CHECKING:
     from .line_financials.models import LineFinancial
@@ -22,8 +21,6 @@ if TYPE_CHECKING:
     from .line_customs.models import LineCustom
     from .line_descriptions.models import LineDescription
     from .line_references.models import LineReference
-    from api.v1.modules.a24.fa.fa_item_lines.models import FaLineItem
-    from api.v1.modules.a76.parts.models import Part
     from api.v1.modules.a76.invoices.models import InvoiceHeader
 
 
@@ -222,7 +219,7 @@ class LineItem(Base, TenantScopedMixin, TimestampMixin):
         uselist=False,
     )
     identifiers: Mapped[List["IdentifierDetail"]] = relationship(
-        IdentifierDetail,
+        "IdentifierDetail",
         back_populates="line",
         cascade="all, delete-orphan",
     )
@@ -231,6 +228,11 @@ class LineItem(Base, TenantScopedMixin, TimestampMixin):
         foreign_keys=[part_number_id],
         viewonly=True,
     )
+    component_part_info: Mapped[Optional["Part"]] = relationship(
+        "Part",
+        foreign_keys=[component_part_number_id],
+        viewonly=True,
+    )
 
 
 # ============================================================================
@@ -387,3 +389,14 @@ MIGRATION STRATEGY FROM ORIGINAL TABLES TO NORMALIZED SCHEMA:
    )
    ```
 """
+# ============================================================================
+# RUNTIME IMPORTS FOR MAPPER RESOLUTION
+# ============================================================================
+# We import these specialized models at the bottom to ensure they are registered
+# in the SQLAlchemy metadata for relationship resolution while avoiding 
+# circular import issues in the module head.
+
+from api.v1.modules.a24.fa.fa_item_lines.models import FaLineItem
+from api.v1.modules.a76.parts.models import Part
+from api.v1.modules.a76.items.series.models import Serie
+from api.v1.modules.a76.general_catalogs.identifiers.models import IdentifierDetail