public void AddCategories(int[] categories, int productId, bool isEditing)
{
if (isEditing)
{
var oldCategories = _categoryRepository.GetProductCategories(productId).ToList();
_categoryRepository.DeleteProductCategories(oldCategories);
_categoryRepository.SaveChanges();
}
var newCategories = new List <ProductCategory>();
foreach (var item in categories)
{
newCategories.Add(new ProductCategory
{
CategoryId = item,
ProductId = productId
});
}
_categoryRepository.AddProductCategories(newCategories);
_categoryRepository.SaveChanges();
}
