add project base

backend/src/products/service.py

@@ -0,0 +1,41 @@
+from sqlmodel import Session, select
+from src.models import Product
+
+def get_all(session: Session) -> list[Product]:
+    statement = select(Product)
+    return session.exec(statement).all()
+
+def get_one(session: Session, product_id: int) -> Product:
+    return session.get(Product, product_id)
+
+def create_one(session: Session, product: Product) -> Product:
+    product_create = product.model_dump(exclude_unset=True)
+    new_product = Product(**product_create)
+    session.add(new_product)
+    session.commit()
+    session.refresh(new_product)
+    return new_product
+
+def update_one(session: Session, id: int, product: Product) -> Product:
+    statement = select(Product).where(Product.id == id)
+    result = session.exec(statement)
+    new_product = result.first()
+    if not new_product:
+        return None
+    product_updates = product.model_dump(exclude_unset=True)
+    for key, value in product_updates.items():
+        setattr(new_product, key, value)
+    session.add(new_product)
+    session.commit()
+    session.refresh(new_product)
+    return new_product
+
+def delete_one(session: Session, id: int) -> Product:
+    statement = select(Product).where(Product.id == id)
+    result = session.exec(statement)
+    product = result.first()
+    if not product:
+        return None
+    session.delete(product)
+    session.commit()
+    return product