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NHibernate.QueryException: could not resolve property

Original Post

marcus

11 Mar, 2010 02:52 PM via web

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I'm using the automapping feature in fnh and the mappings looks like this:

        var cfg = Fluently.Configure()
            .Database(MsSqlConfiguration.MsSql2008.ShowSql()
            .ConnectionString(c => c.FromConnectionStringWithKey("dbConn")))
            .Mappings(m => m.AutoMappings.Add(AutoMap.AssemblyOf<ContentItem>()
            .Where(t => t.IsSubclassOf(typeof(ContentItem)))
            .IncludeBase<ContentItem>()
            .Override<ContentItem>(map => map.Id(x => x.Id).GeneratedBy.Identity())
            .Setup(s => {
                s.IsDiscriminated = type => true;
                s.DiscriminatorColumn = type => "type";
                s.SubclassStrategy = type => SubclassStrategy.Subclass;
            })

In my repository I have this method

    public T Get(Expression<Func<T, bool>> predicate) {
        return (T) Session.CreateCriteria(typeof (T)).Add(predicate).UniqueResult();
    }

and i use it from my code like this

    public ActionResult Index(string pagePath) {
        var model = _repository.Get(x => x.UrlSegment == pagePath);
        return View(new BlogModel(model));
    }

and when I call this method I get an NHibernate.QueryException: could not resolve property.
Please see the attached file for complete stacktrace.

• stacktrace.txt 3.4 KB

1. Support Staff 2 Posted by James Gregory on 12 Mar, 2010 09:32 AM

   

   Could you post your entities? Specifically the one containing UrlSegment.

   Also, if you replace your AutoMappings call with the following, it'll export the XML mappings that are generated; if you could attach those too it'll help us debug.

   .Mappings(m =>
     m.AutoMappings
       .ExportTo(@"C:\Mappings")
       .Add(AutoMap.AssemblyOf<ContentItem>())
   

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2. 3 Posted by marcus on 12 Mar, 2010 11:15 AM

   

   Here is the files you asked for, my mappings for all my entities and my ContentItem.
   I can say that I downloaded the latest buid from your site a couple of days ago and all sudden it seems like something has happend to the automapping feature in fnh because I need to override all my properties and add the mapping manually.

   • Mappings.rar 3.1 KB

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3. Support Staff 4 Posted by James Gregory on 17 Mar, 2010 01:34 PM

   

   I've looked over your files and everything seems fine.

   • What's the type of _repository? What's the generic argument for it?
   • What's the actual property the exception refers to?

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4. James Gregory resolved this discussion on 16 May, 2010 05:48 PM.

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