public virtual bool ObjectHasReference(object entity)
{
if (entity == null)
{
return(false);
}
IHasLoggingReference entityWithReference = entity as IHasLoggingReference;
if (entityWithReference != null)
{
return(true);
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.IgnoreCase;
string keyPropertyName = GetReferencePropertyForObject(entity);
var keyProperty = entity.GetType().GetProperty(keyPropertyName, flags);
if (keyProperty != null)
{
return(true);
}
return(false);
}
public virtual string GetReferenceForObject(object entity)
{
if (entity == null)
{
return(null);
}
IHasLoggingReference entityWithReference = entity as IHasLoggingReference;
if (entityWithReference != null)
{
return(entityWithReference.Reference.ToString());
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.IgnoreCase;
string keyPropertyName = GetReferencePropertyForObject(entity);
var keyProperty = entity.GetType().GetProperty(keyPropertyName, flags);
if (keyProperty != null)
{
return(keyProperty.GetGetMethod().Invoke(entity, null).ToString());
}
throw new Exception(string.Format("Attempted to log a foreign entity that did not implement IHasLoggingReference and that did not have a property with name '{0}'. It had type {1}, and it was '{2}'",
KeyPropertyName, entity.GetType(), entity));
}
public virtual string GetReferenceForObject(object entity)
{
if (entity == null)
{
return(null);
}
IHasLoggingReference entityWithReference = entity as IHasLoggingReference;
if (entityWithReference != null)
{
return(entityWithReference.Reference.ToString());
}
const BindingFlags flags = BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Public | BindingFlags.IgnoreCase;
string keyPropertyName = GetReferencePropertyForObject(entity);
var keyProperty = entity.GetType().GetProperty(keyPropertyName, flags);
if (keyProperty != null)
{
return(keyProperty.GetGetMethod().Invoke(entity, null).ToString());
}
ObjectStateEntry entry = null;
if (context.ObjectStateManager.TryGetObjectStateEntry(entity, out entry))
{
var keyMember = entry.EntityKey.EntityKeyValues.FirstOrDefault();
if (keyMember != null && keyMember.Value != null)
{
return(keyMember.Value.ToString());
}
}
throw new InvalidOperationException(string.Format("Attempted to log a foreign entity that did not implement IHasLoggingReference and that did not have a property with name '{0}'. It had type {1}, and it was '{2}'",
KeyPropertyName, entity.GetType(), entity));
}
