fix(BE): add missing product json in transfer get all & support flag param filter in product warehouses

internal/modules/inventory/product-warehouses/services/product_warehouse.service.go

@@ -34,7 +34,11 @@ func NewProductWarehouseService(repo repository.ProductWarehouseRepository, vali
 }
 
 func (s productWarehouseService) withRelations(db *gorm.DB) *gorm.DB {
-	return db.Preload("Product.Flags").Preload("Product").Preload("Warehouse").Preload("CreatedUser")
+	return db.
+		Preload("Product.Flags").
+		Preload("Product").
+		Preload("Warehouse").
+		Preload("CreatedUser")
 }
 
 func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query) ([]entity.ProductWarehouse, int64, error) {
@@ -55,6 +59,12 @@ func (s productWarehouseService) GetAll(c *fiber.Ctx, params *validation.Query)
 			db = db.Where("warehouse_id = ?", params.WarehouseId)
 		}
 
+		if params.Flag != "" {
+			db = db.Joins("JOIN products ON products.id = product_warehouses.product_id")
+			db = db.Joins("JOIN flags ON flags.flagable_id = products.id AND flags.flagable_type = ?", "products")
+			db = db.Where("flags.name = ?", params.Flag)
+		}
+
 		return db.Order("created_at DESC").Order("updated_at DESC")
 	})