add Brand Management

backend/schemas.py

@@ -2,10 +2,29 @@ from pydantic import BaseModel, Field
 from typing import Optional, List
 from datetime import datetime
 
+# Brand schemas
+class BrandBase(BaseModel):
+    name: str
+
+class BrandCreate(BrandBase):
+    pass
+
+class BrandUpdate(BaseModel):
+    name: Optional[str] = None
+
+class Brand(BrandBase):
+    id: int
+    created_at: datetime
+    updated_at: Optional[datetime] = None
+    
+    class Config:
+        from_attributes = True
+
 # Base schemas
 class ProductBase(BaseModel):
     name: str
     category: str
+    brand_id: Optional[int] = None
     organic: bool = False
     weight: Optional[float] = None
     weight_unit: str = "g"
@@ -16,6 +35,7 @@ class ProductCreate(ProductBase):
 class ProductUpdate(BaseModel):
     name: Optional[str] = None
     category: Optional[str] = None
+    brand_id: Optional[int] = None
     organic: Optional[bool] = None
     weight: Optional[float] = None
     weight_unit: Optional[str] = None
@@ -24,6 +44,7 @@ class Product(ProductBase):
     id: int
     created_at: datetime
     updated_at: Optional[datetime] = None
+    brand: Optional[Brand] = None
     
     class Config:
         from_attributes = True
@@ -60,6 +81,7 @@ class ProductWithEventData(BaseModel):
     id: int
     name: str
     category: str
+    brand: Optional[Brand] = None
     organic: bool
     weight: Optional[float] = None
     weight_unit: str