/// <summary>
/// Create an alias for a projection
/// </summary>
/// <param name="projection">the projection instance</param>
/// <param name="alias">LambdaExpression returning an alias</param>
/// <returns>return NHibernate.Criterion.IProjection</returns>
public static IProjection WithAlias(this IProjection projection,
Expression <Func <object> > alias)
{
string aliasContainer = ExpressionProcessor.FindPropertyExpression(alias.Body);
return(Projections.Alias(projection, aliasContainer));
}
protected override Expression VisitMemberAccess(MemberExpression expr)
{
//this must be a grouping parameter member access
IProjection projection = _rootCriteria.GetProjection();
if (projection != null && projection.IsGrouped)
{
_projections.Add(NHProjections.Alias(projection, expr.Member.Name));
}
return(expr);
}
public IProjection As(string alias)
{
return(Projections.Alias(this, alias));
}
public ProjectionList Add(IProjection projection, String alias)
{
return(Add(Projections.Alias(projection, alias)));
}
/// <summary>
/// Create an alias for a projection
/// </summary>
/// <param name="projection">the projection instance</param>
/// <param name="alias">alias</param>
/// <returns>return NHibernate.Criterion.IProjection</returns>
public static IProjection WithAlias(this IProjection projection, string alias)
{
return(Projections.Alias(projection, alias));
}
