code snippets for "Think Twice Before You Map Entities To DTOs" post

s1.cs

public class AuthorizationDto
{
    public long Id { get; set; }
    public Guid ApplicationId { get; set; }
    public string ApplicationName { get; set; }
    public Guid? UserGroupId { get; set; }
    public string UserGroupName { get; set; }
    public Guid? UserId { get; set; }
    public string Username { get; set; }
    public Guid PermissionId { get; set; }
    public string PermissionName { get; set; }
    public string PermissionDescription { get; set; }
}

s2.cs

var items = Session.CreateCriteria<Authorization>()
    .CreateAlias("Application", "a", JoinType.InnerJoin)
    .CreateAlias("User", "u", JoinType.LeftOuterJoin)
    .CreateAlias("UserGroup", "g", JoinType.LeftOuterJoin)
    .CreateAlias("Permission", "p", JoinType.InnerJoin)
    .Future<Authorization>();
 
var dtos = new AuthorizationDtoMapper().ToDtos(items);

s3.cs

var dtos = Session.CreateCriteria<Authorization>()
    .CreateAlias("Application", "a", JoinType.InnerJoin)
    .CreateAlias("User", "u", JoinType.LeftOuterJoin)
    .CreateAlias("UserGroup", "g", JoinType.LeftOuterJoin)
    .CreateAlias("Permission", "p", JoinType.InnerJoin)
    .SetProjection(Projections.ProjectionList()
        .Add(Projections.Id(), "Id")
        .Add(Projections.Property("a.Id"), "ApplicationId")
        .Add(Projections.Property("a.Name"), "ApplicationName")
        .Add(Projections.Property("u.Id"), "UserId")
        .Add(Projections.Property("u.UserName"), "Username")
        .Add(Projections.Property("g.Id"), "UserGroupId")
        .Add(Projections.Property("g.Name"), "UserGroupName")
        .Add(Projections.Property("p.Id"), "PermissionId")
        .Add(Projections.Property("p.Name"), "PermissionName")
        .Add(Projections.Property("p.Description"), "PermissionDescription"))
    .SetResultTransformer(new AliasToBeanResultTransformer(typeof(AuthorizationDto)))
    .Future<AuthorizationDto>();