public override bool Perform(object instance, object fieldValue)
{
ActiveRecordValidationBase arInstance = (ActiveRecordValidationBase)instance;
ActiveRecordModel model = ActiveRecordBase.GetModel(arInstance.GetType());
while (model != null)
{
if (model.Ids.Count != 0)
{
_pkModel = model.Ids[0] as PrimaryKeyModel;
}
model = model.Parent;
}
if (_pkModel == null)
{
throw new ValidationFailure("We couldn't find the primary key for " + arInstance.GetType().FullName +
" so we can't ensure the uniqueness of any field. Validatior failed");
}
_fieldValue = fieldValue;
return((bool)arInstance.Execute(new NHibernateDelegate(CheckUniqueness)));
}
/// <summary>
/// Perform the check that the property value is unqiue in the table
/// </summary>
/// <param name="instance"></param>
/// <param name="fieldValue"></param>
/// <returns><c>true</c> if the field is OK</returns>
public override bool IsValid(object instance, object fieldValue)
{
Type instanceType = instance.GetType();
ActiveRecordModel model = ActiveRecordBase.GetModel(instance.GetType());
while (model != null)
{
if (model.PrimaryKey != null)
{
pkModel = model.PrimaryKey;
}
model = model.Parent;
}
if (pkModel == null)
{
throw new ValidationFailure("We couldn't find the primary key for " + instanceType.FullName +
" so we can't ensure the uniqueness of any field. Validatior failed");
}
IsUniqueValidator.fieldValue = fieldValue;
SessionScope scope = null;
FlushMode? originalMode = null;
if (SessionScope.Current == null /*||
* SessionScope.Current.ScopeType != SessionScopeType.Transactional*/)
{
scope = new SessionScope();
}
else
{
originalMode = ActiveRecordBase.holder.CreateSession(instanceType).FlushMode;
ActiveRecordBase.holder.CreateSession(instanceType).FlushMode = FlushMode.Never;
}
try
{
return((bool)ActiveRecordMediator.Execute(instanceType, CheckUniqueness, instance));
}
finally
{
if (scope != null)
{
scope.Dispose();
}
if (originalMode != null)
{
ActiveRecordBase.holder.CreateSession(instanceType).FlushMode = originalMode ?? FlushMode.Commit;
}
}
}
