public void SaveCustomerReviews(CustomerReview[] items)
{
if (items == null)
{
throw new ArgumentNullException(nameof(items));
}
var pkMap = new PrimaryKeyResolvingMap();
using (var repository = _repositoryFactory())
{
using (var changeTracker = GetChangeTracker(repository))
{
var alreadyExistEntities = repository.GetByIds(items.Where(m => !m.IsTransient()).Select(x => x.Id).ToArray());
foreach (var item in items)
{
var sourceEntity = AbstractTypeFactory <CustomerReviewEntity> .TryCreateInstance().FromModel(item, pkMap);
var targetEntity = alreadyExistEntities.FirstOrDefault(x => x.Id == sourceEntity.Id);
bool needRecountRating = targetEntity == null || targetEntity.Rating != sourceEntity.Rating;
if (targetEntity != null)
{
changeTracker.Attach(targetEntity);
sourceEntity.Patch(targetEntity);
}
else
{
repository.Add(sourceEntity);
}
if (needRecountRating)
{
var product = repository.GetProductById(sourceEntity.ProductId);
product.Rating = _ratingService.Count(sourceEntity);
}
}
CommitChanges(repository);
pkMap.ResolvePrimaryKeys();
}
}
}