/// <summary>
/// Commits the changes made on the context to the database.
/// </summary>
/// <returns>
/// The number of objects written to the database
/// </returns>
public int Commit()
{
var modifiedEntities = DbContext.ChangeTracker.Entries()
.Where(el => el.State == EntityState.Modified).ToList();
var deletedEntities = DbContext.ChangeTracker.Entries().Where(el => el.State == EntityState.Deleted).ToList();
var writtenObjectCount = DbContext.SaveChanges();
foreach (var e in modifiedEntities.OfType <DbEntity>().Where(el => el.BusinessEntity != null))
{
e.BusinessEntity.Commit();
EventProxy.NotifyUpdated(e.BusinessEntity);
}
foreach (var e in deletedEntities.OfType <DbEntity>().Where(el => el.BusinessEntity != null))
{
e.BusinessEntity.Commit();
EventProxy.NotifyDeleted(e.BusinessEntity);
}
var saveCounter = 0;
while (DbContext.ChangeTracker.Entries().Any(el => el.State != EntityState.Unchanged))
{
if (saveCounter++ > 1000)
{
throw new RepositoryException("Repository tried saving more than set limit and there are still changes. Check for infinite recursion events or increase the limit.");
}
writtenObjectCount += Commit();
}
return(writtenObjectCount);
}
/// <summary>
/// Updates a business entity to the repository.
/// </summary>
/// <typeparam name="TEntity">The entity type to update.</typeparam>
/// <typeparam name="TBusinessEntity">The business entity type that's updating.</typeparam>
/// <param name="businessEntity">The business entity that's updating.</param>
/// <exception cref="RepositoryException">Fires this exception when the Entity is not found in the context.</exception>
public void Update <TEntity, TBusinessEntity>(TBusinessEntity businessEntity)
where TEntity : DbEntity, new()
where TBusinessEntity : BusinessEntity
{
IEnumerable <object> keys;
var originalEntity = GetEntityFromBusinessEntity <TEntity, TBusinessEntity>(businessEntity, out keys);
if (originalEntity == null)
{
var exception = new RepositoryException(Resources.Repository_Update_UpdateFailed_NotFound);
exception.Data.Add("Entity Keys", keys);
throw exception;
}
if (!EventProxy.NotifyUpdate(businessEntity))
{
return;
}
var dbEntity = originalEntity as BaseDbEntity;
if (dbEntity != null)
{
dbEntity.UpdateDate = DateTime.UtcNow.ToUniversalTime();
dbEntity.UpdaterUsername = UserName;
}
originalEntity.InjectFrom(businessEntity);
originalEntity.WriteJsonData(businessEntity);
Cryptography.EncryptProperties <TBusinessEntity>(originalEntity);
}
/// <summary>
/// Adds a new business entity to the repository.
/// </summary>
/// <typeparam name="TEntity">The type of the entity to add.</typeparam>
/// <typeparam name="TBusinessEntity">The Type of the business entity to add.</typeparam>
/// <param name="businessEntity">The business entity to add to the repository.</param>
public void Add <TEntity, TBusinessEntity>(TBusinessEntity businessEntity)
where TEntity : DbEntity, new()
where TBusinessEntity : BusinessEntity
{
var newEntity = new TEntity();
newEntity.InjectFrom(businessEntity);
newEntity.WriteJsonData(businessEntity);
Cryptography.EncryptProperties <TBusinessEntity>(newEntity);
var baseDbEntity = newEntity as BaseDbEntity;
if (baseDbEntity != null)
{
baseDbEntity.Guid = Guid.NewGuid();
baseDbEntity.CreationDate = DateTime.UtcNow.ToUniversalTime();
baseDbEntity.CreatorUsername = UserName;
baseDbEntity.UpdateDate = baseDbEntity.CreationDate;
baseDbEntity.UpdaterUsername = UserName;
baseDbEntity.IsDeleted = false;
}
EventProxy.NotifyAdd(businessEntity);
ImmediateDbContext.Set <TEntity>().Add(newEntity);
ImmediateDbContext.SaveChanges();
ImmediateDbContext.Entry(newEntity).State = EntityState.Detached;
DbContext.Set <TEntity>().Attach(newEntity);
//Get updated keys
businessEntity.InjectFrom(newEntity);
businessEntity.Init();
EventProxy.NotifyAdded(businessEntity);
}
public void Delete <TEntity, TBusinessEntity>(TBusinessEntity businessEntity)
where TEntity : DbEntity, new()
where TBusinessEntity : BusinessEntity
{
IEnumerable <object> keys;
var entity = GetEntityFromBusinessEntity <TEntity, TBusinessEntity>(businessEntity, out keys);
if (!EventProxy.NotifyDelete(businessEntity))
{
return;
}
DbContext.Set <TEntity>().Remove(entity);
}
/// <summary>
/// Registers an event proxy on a Type.
/// </summary>
/// <param name="type">The type to register the event proxy to.</param>
/// <param name="proxy">The proxy event to register.</param>
public static void Register(Type type, EventProxy proxy)
{
Proxies[type] = proxy;
}
