public ProductDTO addProduct(ProductDTO product)
{
if (productDataAccessProvider.GetProducts(p => p.ProductId == product.ProductId, false).Any())
{
throw new BusinessException("Product id already exists");
}
else if (productDataAccessProvider.GetProducts(p => p.Name == product.Name, false).Any())
{
throw new BusinessException("Product name already exists");
}
else
{
return(mapper.getDTO(productDataAccessProvider.AddProduct(mapper.getEntity(product, categoryDataAccessProvider.GetCategory(product.CategoryId)))));
}
}