internal AuditLog CreateLogRecord(EventType eventType, DbContext context)
{
Type entityType = _dbEntry.Entity.GetType().GetEntityType();
TrackChangesAttribute trackChangesAttribute = entityType.GetCustomAttributes(true).OfType <TrackChangesAttribute>().SingleOrDefault();
if (trackChangesAttribute == null)
{
return(null);
}
DateTime changeTime = DateTime.Now;
var keyRepresentation = BuildKeyRepresentation(_dbEntry);
try
{
var newlog = new AuditLog
{
IdUsuario = MAEUserSession.InstanciaCargada? MAEUserSession.Instancia.IdUsuario:1,
FechaEvento = changeTime,
entityType = eventType,
IdClase = (short)trackChangesAttribute.LogAuditoriaClase,
IdRegistro = keyRepresentation.Value
};
return(newlog);
}
catch
{
return(null);
}
}
internal static TrackingConfigurationValue EntityConfigValueFactory(string key, Type entityType)
{
TrackChangesAttribute trackChangesAttribute = entityType.GetCustomAttributes(true).OfType <TrackChangesAttribute>().SingleOrDefault();
bool value = trackChangesAttribute != null;
return(new TrackingConfigurationValue(value));
}
public static bool IsTrackingEnabled(Type entityType)
{
TrackChangesAttribute trackChangesAttribute =
entityType.GetCustomAttributes(true).OfType <TrackChangesAttribute>().SingleOrDefault();
bool value = trackChangesAttribute != null;
return(value);
}
private static bool TableTrackerIndicatorFactory(Type type)
{
Type entityType = type.GetEntityType();
TrackChangesAttribute trackChangesAttribute =
entityType.GetCustomAttributes(true).OfType <TrackChangesAttribute>().SingleOrDefault();
return(trackChangesAttribute != null && trackChangesAttribute.Enabled);
}
private List <AuditEntry> OnBeforeSaveChanges()
{
ChangeTracker.DetectChanges();
var auditEntries = new List <AuditEntry>();
foreach (var entry in ChangeTracker.Entries())
{
if (entry.Entity is AuditLog || entry.State == EntityState.Detached || entry.State == EntityState.Unchanged)
{
continue;
}
Type entityType = entry.Entity.GetType();
TrackChangesAttribute trackChangesAttribute = entityType.GetCustomAttributes(true).OfType <TrackChangesAttribute>().SingleOrDefault();
if (trackChangesAttribute == null)
{
return(null);
}
var auditEntry = new AuditEntry(entry);
auditEntry.TableName = entry.Metadata.Relational().TableName;
auditEntries.Add(auditEntry);
foreach (var property in entry.Properties)
{
if (property.IsTemporary)
{
// value will be generated by the database, get the value after saving
auditEntry.TemporaryProperties.Add(property);
continue;
}
string propertyName = property.Metadata.Name;
if (property.Metadata.IsPrimaryKey())
{
auditEntry.KeyValues[propertyName] = property.CurrentValue;
continue;
}
if (propertyName.Equals("ConfiguracionSistema") ||
propertyName.Equals("RolUsuarioItems") ||
propertyName.Equals("ConfiguracionSistemaUrls") ||
propertyName.Equals("Pass"))
{
continue;
}
switch (entry.State)
{
case EntityState.Added:
auditEntry.NewValues[propertyName] = property.CurrentValue;
auditEntry.eventType = EventType.Added;
break;
case EntityState.Deleted:
auditEntry.eventType = EventType.Deleted;
auditEntry.OldValues[propertyName] = property.OriginalValue;
break;
case EntityState.Modified:
if (property.IsModified)
{
auditEntry.OldValues[propertyName] = property.OriginalValue;
auditEntry.NewValues[propertyName] = property.CurrentValue;
auditEntry.eventType = EventType.Modified;
}
break;
}
}
}
// Save audit entities that have all the modifications
foreach (var auditEntry in auditEntries.Where(_ => !_.HasTemporaryProperties))
{
var au = auditEntry.ToAudit(this);
if (au != null)
{
Audits.Add(au);
}
}
// keep a list of entries where the value of some properties are unknown at this step
return(auditEntries.Where(_ => _.HasTemporaryProperties).ToList());
}
