public static NHibernate.Criterion.Lambda.QueryOverProjectionBuilder <T> GroupByProperty <T>(
this NHibernate.Criterion.Lambda.QueryOverProjectionBuilder <T> builder,
System.Linq.Expressions.Expression <Func <object> > propertyExpression,
System.Linq.Expressions.Expression <Func <object> > aliasExpression)
{
var alias = aliasExpression.ParseProperty();
var propertyProjection = Projections.Property(propertyExpression);
var groupProjection = Projections.GroupProperty(propertyProjection);
var withAliasProjection = Projections.Alias(groupProjection, alias);
builder.Select(withAliasProjection);
return(builder);
}
/// <summary>
/// Selects the items.
/// </summary>
/// <param name="builder">The builder.</param>
/// <returns></returns>
protected override NHibernate.Criterion.Lambda.QueryOverProjectionBuilder <MediaFile> SelectItems(NHibernate.Criterion.Lambda.QueryOverProjectionBuilder <MediaFile> builder)
{
return(builder.Select(() => alias.Id).WithAlias(() => modelAlias.Id)
.Select(() => alias.Title).WithAlias(() => modelAlias.Name)
.Select(() => alias.CreatedOn).WithAlias(() => modelAlias.CreatedOn)
.Select(() => alias.Version).WithAlias(() => modelAlias.Version)
.Select(() => alias.OriginalFileExtension).WithAlias(() => modelAlias.FileExtension)
.Select(() => alias.PublicUrl).WithAlias(() => modelAlias.PublicUrl)
.Select(alias.GetIsProcessingConditions()).WithAlias(() => modelAlias.IsProcessing)
.Select(alias.GetIsFailedConditions()).WithAlias(() => modelAlias.IsFailed)
.Select(() => alias.Size).WithAlias(() => modelAlias.Size));
}
