/// <summary>
/// 别名可以直接用字符串
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="p"></param>
/// <param name="alias"></param>
/// <returns></returns>
public static QueryOverProjectionBuilder <T> WithAliasString <T>(this QueryOverProjectionBuilder <T> p, string alias)
{
FieldInfo fi = typeof(QueryOverProjectionBuilder <T>).GetField("lastProjection",
BindingFlags.NonPublic | BindingFlags.SetField | BindingFlags.Instance | BindingFlags.GetField);
IProjection lastProjection = fi.GetValue(p) as IProjection;
fi.SetValue(p, Projections.Alias(lastProjection, alias));
return(p);
}
/// <summary>
/// Media items selector.
/// </summary>
/// <param name="builder">Media items projection builder.</param>
/// <returns>Media items projection builder</returns>
protected virtual QueryOverProjectionBuilder <TEntity> SelectItems(QueryOverProjectionBuilder <TEntity> builder)
{
return(builder
.Select(() => alias.Id).WithAlias(() => modelAlias.Id)
.Select(() => alias.Title).WithAlias(() => modelAlias.Name)
.Select(() => alias.CreatedOn).WithAlias(() => modelAlias.CreatedOn)
.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.Version).WithAlias(() => modelAlias.Version));
}
/// <summary>
/// SelectEntity
/// </summary>
/// <typeparam name="T"></typeparam>
/// <param name="builder"></param>
/// <returns></returns>
public static QueryOverProjectionBuilder <T> SelectEntity <T>(this QueryOverProjectionBuilder <T> builder) where T : class
{
System.Type type = typeof(T);
var properties = type.GetProperties(BindingFlags.Instance | BindingFlags.Public | BindingFlags.NonPublic);
foreach (PropertyInfo pi in properties)
{
if (pi.CanWrite)
{
builder.Select(NHibernate.Criterion.Projections.Property(pi.Name).As(pi.Name));
}
}
return(builder);
}
/// <summary>
/// Selects the items.
/// </summary>
/// <param name="builder">The builder.</param>
/// <returns></returns>
protected override QueryOverProjectionBuilder <MediaImage> SelectItems(QueryOverProjectionBuilder <MediaImage> 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.Caption).WithAlias(() => modelAlias.Tooltip)
.Select(() => alias.OriginalFileExtension).WithAlias(() => modelAlias.FileExtension)
.Select(() => alias.PublicThumbnailUrl).WithAlias(() => modelAlias.ThumbnailUrl)
.Select(() => alias.PublicUrl).WithAlias(() => modelAlias.PublicUrl)
.Select(alias.GetIsProcessingConditions()).WithAlias(() => modelAlias.IsProcessing)
.Select(alias.GetIsFailedConditions()).WithAlias(() => modelAlias.IsFailed)
.Select(() => alias.Size).WithAlias(() => modelAlias.Size));
}
