/// <summary>
/// Save a product to the database
/// </summary>
public long SaveType(IProductType modifiedInstance)
{
using (var uow = Factory.Create())
{
var productSaverContext = new ProductPartsSaverContext(uow);
var entity = SaveProduct(productSaverContext, modifiedInstance);
uow.SaveChanges();
return(entity.Id);
}
}
private ProductTypeEntity GetPartEntity(ProductPartsSaverContext saverContext, IProductPartLink link)
{
if (saverContext.EntityCache.ContainsKey((ProductIdentity)link.Product.Identity))
{
var part = saverContext.EntityCache[(ProductIdentity)link.Product.Identity];
EntityIdListener.Listen(part, link.Product);
return(part);
}
if (link.Product.Id == 0)
{
return(SaveProduct(saverContext, link.Product));
}
return(saverContext.UnitOfWork.GetEntity <ProductTypeEntity>(link.Product));
}
private ProductTypeEntity SaveProduct(ProductPartsSaverContext saverContext, IProductType modifiedInstance)
{
var strategy = TypeStrategies[modifiedInstance.GetType().Name];
// Get or create entity
var repo = saverContext.GetRepository <IProductTypeEntityRepository>();
var identity = (ProductIdentity)modifiedInstance.Identity;
ProductTypeEntity typeEntity;
var entities = repo.Linq
.Where(p => p.Identifier == identity.Identifier && p.Revision == identity.Revision)
.ToList();
// If entity does not exist or was deleted, create a new one
if (entities.All(p => p.Deleted != null))
{
typeEntity = repo.Create(identity.Identifier, identity.Revision, modifiedInstance.Name, modifiedInstance.GetType().Name);
EntityIdListener.Listen(typeEntity, modifiedInstance);
}
else
{
typeEntity = entities.First(p => p.Deleted == null);
typeEntity.Name = modifiedInstance.Name;
// Set id in case it was imported under existing material and revision
modifiedInstance.Id = typeEntity.Id;
}
// Check if we need to create a new version
if (typeEntity.CurrentVersion == null || typeEntity.CurrentVersion.State != (int)modifiedInstance.State || strategy.HasChanged(modifiedInstance, typeEntity.CurrentVersion))
{
var version = saverContext.GetRepository <IProductPropertiesRepository>().Create();
version.State = (int)modifiedInstance.State;
typeEntity.SetCurrentVersion(version);
}
strategy.SaveType(modifiedInstance, typeEntity.CurrentVersion);
saverContext.EntityCache.Add(new ProductIdentity(typeEntity.Identifier, typeEntity.Revision), typeEntity);
// And nasty again!
var type = modifiedInstance.GetType();
var linkRepo = saverContext.GetRepository <IPartLinkRepository>();
foreach (var linkStrategy in LinkStrategies[strategy.TargetType.Name].Values)
{
var property = type.GetProperty(linkStrategy.PropertyName);
var value = property.GetValue(modifiedInstance);
if (typeof(IProductPartLink).IsAssignableFrom(property.PropertyType))
{
var link = (IProductPartLink)value;
var linkEntity = FindLink(linkStrategy.PropertyName, typeEntity);
if (linkEntity == null && link != null) // link is new
{
linkEntity = linkRepo.Create(linkStrategy.PropertyName);
linkEntity.Parent = typeEntity;
linkStrategy.SavePartLink(link, linkEntity);
EntityIdListener.Listen(linkEntity, link);
linkEntity.Child = GetPartEntity(saverContext, link);
}
else if (linkEntity != null && link == null) // link was removed
{
linkStrategy.DeletePartLink(new IGenericColumns[] { linkEntity });
linkRepo.Remove(linkEntity);
}
else if (linkEntity != null && link != null) // link was modified
{
linkStrategy.SavePartLink(link, linkEntity);
linkEntity.Child = GetPartEntity(saverContext, link);
}
// else: link was null and is still null
}
else if (typeof(IEnumerable <IProductPartLink>).IsAssignableFrom(property.PropertyType))
{
var links = (IEnumerable <IProductPartLink>)value;
// Delete the removed ones
var toDelete = (from link in typeEntity.Parts
where link.PropertyName == linkStrategy.PropertyName
where links.All(l => l.Id != link.Id)
select link).ToArray();
linkStrategy.DeletePartLink(toDelete);
linkRepo.RemoveRange(toDelete);
// Save those currently active
var currentEntities = FindLinks(linkStrategy.PropertyName, typeEntity).ToArray();
foreach (var link in links)
{
PartLink linkEntity;
if (link.Id == 0 || (linkEntity = currentEntities.FirstOrDefault(p => p.Id == link.Id)) == null)
{
linkEntity = linkRepo.Create(linkStrategy.PropertyName);
linkEntity.Parent = typeEntity;
EntityIdListener.Listen(linkEntity, link);
}
else
{
linkEntity = typeEntity.Parts.First(p => p.Id == link.Id);
}
linkStrategy.SavePartLink(link, linkEntity);
linkEntity.Child = GetPartEntity(saverContext, link);
}
}
}
return(typeEntity);
}
