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POLINQ to NHibernate: could not resolve property
 

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  1. POLINQ to NHibernate: could not resolve property
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    <p>Fluent nHibernate using nHibernate v. 2.1.2.4, nHibernate.Linq v. 1.1.0.1001, and Fluent NHibernate v. 1.1.0.685.</p> <p>I have a domain object with a DateTime field called DateOfEvent. This is an actual date/time field in the database. I've also added 2 new properties YearOfEvent which grabs the Year from the DateOfEvent field as well as MontOfEvent which grabs the Month from the DateOfEvent field.</p> <pre><code>public class Event { public Event() { } public virtual Int32 Id { get; set; } public virtual String Title { get; set; } public virtual DateTime DateOfEvent { get; set; } public virtual Int32 YearOfEvent { get { return DateOfEvent.Year; } } public virtual Int32 MonthOfEvent { get { return DateOfEvent.Month; } } public virtual String Location { get; set; } public virtual String City { get; set; } public virtual String State { get; set; } public virtual String Zip { get; set; } public virtual String Description { get; set; } public virtual Boolean HasImage { get; set; } public virtual Boolean IsActive { get; set; } } </code></pre> <p>However, when running this method:</p> <pre><code>public IList&lt;Event&gt; GetActiveEvents(int pageNumber, int pageSize, out int totalItems) { Int32 skip = Misc.NumberToSkip(pageNumber, pageSize); totalItems = (from e in _session.Linq&lt;Event&gt;() where e.IsActive select e).Count(); return (from e in _session.Linq&lt;Event&gt;() where e.IsActive select e) .Skip(skip) .Take(pageSize) .ToList(); } </code></pre> <p>NHibernate.QueryException: could not resolve property: YearOfEvent of: ....Event</p> <p>FWIW, I've blurred out the name of the project. ;)</p> <p>Any idea how to get this query working?</p> <p>Thanks! -Steve</p> <p>EDIT: Here's my mapping class:</p> <pre><code>public class EventMap : ClassMap&lt;Event&gt; { public EventMap() { Table("tbl_event"); Id(x =&gt; x.Id, "eventId"); Map(x =&gt; x.DateOfEvent, "dateOfEvent"); Map(x =&gt; x.Description, "description"); Map(x =&gt; x.Title, "title"); Map(x =&gt; x.Location, "location"); Map(x =&gt; x.State, "state"); Map(x =&gt; x.City, "city"); Map(x =&gt; x.Zip, "zip"); Map(x =&gt; x.HasImage, "hasImage"); Map(x =&gt; x.IsActive, "isActive"); } } </code></pre> <p>...and my config:</p> <pre><code>public Configuration GetConfiguration() { Configuration configuration; var assembly = Assembly.Load(".....Data"); var fluentConfig = Fluently.Configure() .Database(MySQLConfiguration.Standard.ConnectionString( c =&gt; c.FromConnectionStringWithKey("......") )) .Mappings(m =&gt; m.FluentMappings.AddFromAssembly(assembly)); configuration = fluentConfig.BuildConfiguration(); configuration.Properties.Add("hbm2ddl.keywords", "none"); return configuration; } </code></pre> <p>I also just tried the Criteria API:</p> <pre><code>return _session.CreateCriteria(typeof (Event)) .Add(Expression.Eq("IsActive", true)) .Add(Expression.Eq("YearOfEvent", year)) .List&lt;Event&gt;(); </code></pre> <p>No workie either.</p>
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    1. USStephenPAdams
    1. USStephenPAdams
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      1. POLINQ to NHibernate: could not resolve property
      1. USRuss Cam
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    1. COPost your mappings
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      1. POLINQ to NHibernate: could not resolve property
      1. USDiego Mijelshon
    2. COStrange. Looks fine to me, I wonder if maybe it's the LINQ provider trying to do something fancy with the properties. Have you tried running the same query without LINQ?
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      1. USPhill
    3. COPhill, just tried (posted the query) using the Criteria API. Same exception.
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      1. USStephenPAdams
 

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