import ali

backend/app/schemas/item.py

@@ -5,8 +5,9 @@ Définit les schémas de validation pour les requêtes et réponses API.
 
 from datetime import date, datetime
 from decimal import Decimal
+from typing import Any
 
-from pydantic import BaseModel, ConfigDict, Field
+from pydantic import BaseModel, ConfigDict, Field, model_validator
 
 from app.models.item import ItemStatus
 from app.schemas.category import CategoryResponse
@@ -26,6 +27,7 @@ class ItemBase(BaseModel):
     url: str | None = Field(None, max_length=500, description="Lien vers page produit")
     price: Decimal | None = Field(None, ge=0, decimal_places=2, description="Prix d'achat")
     purchase_date: date | None = Field(None, description="Date d'achat")
+    characteristics: dict[str, str] | None = Field(None, description="Caractéristiques techniques (clé-valeur)")
     notes: str | None = Field(None, description="Notes libres")
 
 
@@ -34,6 +36,8 @@ class ItemCreate(ItemBase):
 
     category_id: int = Field(..., description="ID de la catégorie")
     location_id: int = Field(..., description="ID de l'emplacement")
+    parent_item_id: int | None = Field(None, description="ID de l'objet parent (si intégré)")
+    shop_id: int | None = Field(None, description="ID de la boutique d'achat")
 
 
 class ItemUpdate(BaseModel):
@@ -49,9 +53,12 @@ class ItemUpdate(BaseModel):
     url: str | None = Field(None, max_length=500)
     price: Decimal | None = Field(None, ge=0)
     purchase_date: date | None = None
+    characteristics: dict[str, str] | None = None
     notes: str | None = None
     category_id: int | None = None
     location_id: int | None = None
+    parent_item_id: int | None = None
+    shop_id: int | None = None
 
 
 class ItemResponse(ItemBase):
@@ -62,6 +69,8 @@ class ItemResponse(ItemBase):
     id: int
     category_id: int
     location_id: int
+    parent_item_id: int | None = None
+    shop_id: int | None = None
     created_at: datetime
     updated_at: datetime
 
@@ -71,6 +80,57 @@ class ItemWithRelations(ItemResponse):
 
     category: CategoryResponse
     location: LocationResponse
+    thumbnail_id: int | None = None
+    parent_item_name: str | None = None
+
+    @model_validator(mode="before")
+    @classmethod
+    def extract_computed_fields(cls, data: Any) -> Any:
+        """Extrait les champs calculés : thumbnail et nom du parent."""
+        from sqlalchemy.orm import InstanceState
+
+        thumbnail_id = None
+        parent_item_name = None
+
+        # Vérifier que les relations sont chargées (éviter lazy load en async)
+        loaded_relations: set[str] = set()
+        if hasattr(data, "_sa_instance_state"):
+            state: InstanceState = data._sa_instance_state
+            loaded_relations = set(state.dict.keys())
+
+        if "documents" in loaded_relations:
+            for doc in data.documents:
+                if doc.type.value == "photo":
+                    thumbnail_id = doc.id
+                    break
+
+        if "parent_item" in loaded_relations and data.parent_item is not None:
+            parent_item_name = data.parent_item.name
+
+        if isinstance(data, dict):
+            if thumbnail_id:
+                data["thumbnail_id"] = thumbnail_id
+            if parent_item_name:
+                data["parent_item_name"] = parent_item_name
+        elif thumbnail_id or parent_item_name:
+            result = {}
+            for k in dir(data):
+                if k.startswith("_"):
+                    continue
+                # Ne pas accéder aux relations non chargées
+                if k in ("documents", "parent_item", "children", "shop"):
+                    continue
+                try:
+                    result[k] = getattr(data, k)
+                except Exception:
+                    pass
+            if thumbnail_id:
+                result["thumbnail_id"] = thumbnail_id
+            if parent_item_name:
+                result["parent_item_name"] = parent_item_name
+            return result
+
+        return data
 
 
 class ItemSummary(BaseModel):