/// <summary>
/// Asynchronously saves all changes made in this context to the underlying database.
/// If the tracker for an entity is active, it will also put the old values in tracking table.
/// </summary>
/// <param name="userName">Username of the logged in identity</param>
/// <param name="cancellationToken">
/// A System.Threading.CancellationToken to observe while waiting for the task
/// to complete.
/// </param>
/// <returns>Returns the number of objects written to the underlying database.</returns>
public virtual async Task <int> SaveChangesAsync(object userName, CancellationToken cancellationToken)
{
if (!GlobalTrackingConfig.Enabled)
{
return(await base.SaveChangesAsync(cancellationToken));
}
if (cancellationToken.IsCancellationRequested)
{
cancellationToken.ThrowIfCancellationRequested();
}
CommonTracker.AuditChanges(this, userName);
IEnumerable <DbEntityEntry> addedEntries = CommonTracker.GetAdditions(this);
// Call the original SaveChanges(), which will save both the changes made and the audit records...Note that added entry auditing is still remaining.
int result = await base.SaveChangesAsync(cancellationToken);
//By now., we have got the primary keys of added entries of added entiries because of the call to savechanges.
CommonTracker.AuditAdditions(this, userName, addedEntries);
//save changes to audit of added entries
await base.SaveChangesAsync(cancellationToken);
return(result);
}
/// <summary>
/// This method saves the model changes to the database.
/// If the tracker for an entity is active, it will also put the old values in tracking table.
/// Always use this method instead of SaveChanges() whenever possible.
/// </summary>
/// <param name="userName">Username of the logged in identity</param>
/// <returns>Returns the number of objects written to the underlying database.</returns>
public virtual int SaveChanges(object userName)
{
CommonTracker.AuditChanges(this, userName);
IEnumerable<DbEntityEntry> addedEntries = CommonTracker.GetAdditions(this);
// Call the original SaveChanges(), which will save both the changes made and the audit records...Note that added entry auditing is still remaining.
int result = base.SaveChanges();
//By now., we have got the primary keys of added entries of added entiries because of the call to savechanges.
CommonTracker.AuditAdditions(this, userName, addedEntries);
//save changes to audit of added entries
base.SaveChanges();
return result;
}