Hello I have small problem with filter definition. I use in my project nhibernate mapping attributes and I want define new nhibernate filter with one named parameters.

I use this mapping:

[NHibernate.Mapping.Attributes.FilterDef(0, Name = "CurrentUserFilter",
Condition = "user_id = :user_id")]
[NHibernate.Mapping.Attributes.FilterParam(1,Name= "CurrentUser",Type = "String")]
[NHibernate.Mapping.Attributes.Filter(2, Name= "CurrentUserFilter",Condition = "user_id = :user_id")]

[NHibernate.Mapping.Attributes.List(3, Name = "UserViews", Table =
"users_views", Access = "field.camelcase-underscore", Lazy = false)]
[NHibernate.Mapping.Attributes.Key(4, Column ="business_object_id")]
[NHibernate.Mapping.Attributes.Index(5, Column= "userView_index",
TypeType=typeof(string))]
[NHibernate.Mapping.Attributes.OneToMany(6, Class = "UserView",ClassType = typeof(UserView))]

IList<UserView> _userViews = new List<UserView>();

When I try enable CurrentUserFilter in Nhibernate session
Nhibernate throw NhibernateExecption with message "No such filter definition". There are small examples with attributes

Can you help me ?

I'm having the exact same problem.

It's a bug with the mapping attributes. If you look at the mapping file that the attributes create, you'll notice that there is no <filter-def /> section at all. The <filter-def /> section needs to go under the "root" of the mapping file and in order to do that you'd have to put the [FilterDef] attribute on a class or in it's own file or something. But the [FilterDef] attribute can only go on a property, indexer, or member in the C# code.

It's impossible to put the [FilterDef] attribute in the correct place!

-Tim Gebhardt
tim@gebhardtcomputing.com