/// <summary>
/// Updates the <see cref="AuditLog"/> from the current <see cref="ObjectContext"/> changes.
/// </summary>
/// <param name="auditLog">The audit log.</param>
/// <returns></returns>
public AuditLog UpdateLog(AuditLog auditLog)
{
if (auditLog == null)
throw new ArgumentNullException("auditLog");
// must call to make sure changes are detected
ObjectContext.DetectChanges();
var entityState = EntityState.Modified;
if (Configuration.IncludeInserts)
entityState = entityState | EntityState.Added;
if (Configuration.IncludeDeletes)
entityState = entityState | EntityState.Deleted;
IEnumerable<ObjectStateEntry> changes = ObjectContext
.ObjectStateManager
.GetObjectStateEntries(entityState);
foreach (ObjectStateEntry objectStateEntry in changes)
{
if (objectStateEntry.Entity == null)
continue;
Type entityType = objectStateEntry.Entity.GetType();
entityType = ObjectContext.GetObjectType(entityType);
if (!Configuration.IsAuditable(entityType))
continue;
var state = new AuditEntryState(ObjectContext, objectStateEntry)
{
AuditLog = auditLog,
};
if (WriteEntity(state))
auditLog.Entities.Add(state.AuditEntity);
}
return auditLog;
}
/// <summary>
/// Creates the <see cref="AuditLog"/> from the current <see cref="ObjectContext"/>.
/// </summary>
/// <returns></returns>
public AuditLog CreateLog()
{
var auditLog = new AuditLog
{
Date = DateTime.Now,
Username = Environment.UserName
};
// must call to make sure changes are detected
ObjectContext.DetectChanges();
IEnumerable<ObjectStateEntry> changes = ObjectContext
.ObjectStateManager
.GetObjectStateEntries(EntityState.Added | EntityState.Deleted | EntityState.Modified);
foreach (ObjectStateEntry objectStateEntry in changes)
{
if (objectStateEntry.Entity == null)
continue;
Type entityType = objectStateEntry.Entity.GetType();
entityType = ObjectContext.GetObjectType(entityType);
if (!Configuration.IsAuditable(entityType))
continue;
var state = new AuditEntryState(objectStateEntry)
{
AuditLog = auditLog,
ObjectContext = ObjectContext,
};
if (WriteEntity(state))
auditLog.Entities.Add(state.AuditEntity);
}
return auditLog;
}
/// <summary>
/// Creates the <see cref="AuditLog"/> from the current <see cref="ObjectContext"/>.
/// </summary>
/// <returns></returns>
public AuditLog CreateLog()
{
var auditLog = new AuditLog
{
Date = DateTime.Now,
Username = Environment.UserName
};
return UpdateLog(auditLog);
}
/// <summary>
/// Updates the <see cref="AuditLog"/> from the current <see cref="ObjectContext"/> changes.
/// </summary>
/// <param name="auditLog">The audit log.</param>
/// <returns></returns>
public AuditLog UpdateLog(AuditLog auditLog)
{
if (auditLog == null)
throw new ArgumentNullException("auditLog");
// must call to make sure changes are detected
ObjectContext.DetectChanges();
IEnumerable<ObjectStateEntry> changes = ObjectContext
.ObjectStateManager
.GetObjectStateEntries(EntityState.Added | EntityState.Deleted | EntityState.Modified)
.Where(t => !t.IsRelationship);
foreach (ObjectStateEntry objectStateEntry in ObjectContext.ObjectStateManager.GetObjectStateEntries(EntityState.Added | EntityState.Deleted).Where(t => t.IsRelationship))
{
ObjectStateEntry entryLeft = null;
ObjectStateEntry entryRight = null;
var associationEnds = objectStateEntry.GetAssociationEnds();
NavigationProperty navigationPropertyLeft = objectStateEntry.GetNavigationProperty(associationEnds[0]);
NavigationProperty navigationPropertyRight = objectStateEntry.GetNavigationProperty(associationEnds[1]);
if (objectStateEntry.State == EntityState.Added)
{
entryLeft = ObjectContext.ObjectStateManager.GetObjectStateEntry((EntityKey)objectStateEntry.CurrentValues[0]);
entryRight = ObjectContext.ObjectStateManager.GetObjectStateEntry((EntityKey)objectStateEntry.CurrentValues[1]);
}
else if (objectStateEntry.State == EntityState.Deleted)
{
entryLeft = ObjectContext.ObjectStateManager.GetObjectStateEntry((EntityKey)objectStateEntry.OriginalValues[0]);
entryRight = ObjectContext.ObjectStateManager.GetObjectStateEntry((EntityKey)objectStateEntry.OriginalValues[1]);
}
Type entityTypeLeft = entryLeft.Entity.GetType();
entityTypeLeft = ObjectContext.GetObjectType(entityTypeLeft);
if (Configuration.IsAuditable(entityTypeLeft))
{
var stateLeft = new AuditEntryState(entryLeft)
{
AuditLog = auditLog,
ObjectContext = ObjectContext,
AdditionalModifiedProperty = navigationPropertyLeft,
AdditionalModifiedPropertyEnd = ObjectContext.GetObjectByKey(entryRight.EntityKey),
AdditionalModifiedPropertyIsAdd = objectStateEntry.State == EntityState.Added
};
if (WriteEntity(stateLeft))
auditLog.Entities.Add(stateLeft.AuditEntity);
}
Type entityTypeRight = entryRight.Entity.GetType();
entityTypeRight = ObjectContext.GetObjectType(entityTypeRight);
if (Configuration.IsAuditable(entityTypeRight))
{
var stateRight = new AuditEntryState(entryRight)
{
AuditLog = auditLog,
ObjectContext = ObjectContext,
AdditionalModifiedProperty = navigationPropertyRight,
AdditionalModifiedPropertyEnd = ObjectContext.GetObjectByKey(entryLeft.EntityKey),
AdditionalModifiedPropertyIsAdd = objectStateEntry.State == EntityState.Added
};
if (WriteEntity(stateRight))
auditLog.Entities.Add(stateRight.AuditEntity);
}
}
foreach (ObjectStateEntry objectStateEntry in changes)
{
if (objectStateEntry.Entity == null)
continue;
Type entityType = objectStateEntry.Entity.GetType();
entityType = ObjectContext.GetObjectType(entityType);
if (!Configuration.IsAuditable(entityType))
continue;
var state = new AuditEntryState(objectStateEntry)
{
AuditLog = auditLog,
ObjectContext = ObjectContext,
};
if (WriteEntity(state))
auditLog.Entities.Add(state.AuditEntity);
}
return auditLog;
}
