private EntityChange CreateEntityChangeInfo(EntityEntry entityEntry)
{
var entity = entityEntry.Entity;
EntityChangeType changeType;
switch (entityEntry.State)
{
case EntityState.Added:
changeType = EntityChangeType.Create;
break;
case EntityState.Deleted:
changeType = EntityChangeType.Delete;
break;
case EntityState.Modified:
changeType = IsDeleted(entityEntry) ? EntityChangeType.Delete : EntityChangeType.Change;
break;
case EntityState.Detached:
case EntityState.Unchanged:
default:
return(null);
}
var entityId = GetEntityId(entity);
if (entityId == null && changeType != EntityChangeType.Create)
{
return(null);
}
var entityType = entity.GetType();
var entityChangeInfo = new EntityChange
{
ChangeTime = Clock.Now,
ChangeType = changeType,
EntityEntry = entityEntry, // [NotMapped]
EntityId = entityId,
EntityTypeFullName = entityType.FullName,
EntityTypeName = entityType.Name,
EntityTypeTableName = entityEntry.Metadata.Relational().TableName,
PropertyChanges = GetPropertyChanges(entityEntry)
};
return(entityChangeInfo);
}
private DateTime GetChangeTime(EntityChange entityChange)
{
var entity = entityChange.EntityEntry.As <EntityEntry>().Entity;
switch (entityChange.ChangeType)
{
case EntityChangeType.Create:
return((entity as ICreatedDateAuditableEntity)?.AACreatedDate ?? Clock.Now);
case EntityChangeType.Delete:
return((entity as IUpdatedDateAuditableEntity)?.AAUpdatedDate ?? Clock.Now);
case EntityChangeType.Change:
return((entity as IUpdatedDateAuditableEntity)?.AAUpdatedDate ?? Clock.Now);
default:
return(Clock.Now);
}
}
