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POQuery/Mapping problem using NHibernate
 

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  1. POQuery/Mapping problem using NHibernate
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    <p>I'm experiencing a problem with a certain query I'm attempting against a simple joined pair of classes, represented in my example below:</p> <p>Classes:</p> <pre><code>public class ParentClass { public virtual Guid ParentClassId { get;set;} public virtual ChildClass ChildClassRef { get;set;} } public class ChildClass { public virtual Guid ChildClassId { get;set;} public virtual string ChildCode { get;set;} } </code></pre> <p>Fluent Mappings:</p> <pre><code>public class ParentClassMap : ClassMap&lt;ParentClass&gt; { public ParentClassMap() { Id(x =&gt; x.ParentClassId).GeneratedBy.Guid(); References&lt;ChildClass&gt;(x =&gt; x.ChildClassRef, "ChildClassId").ForeignKey("ChildClassId").Fetch.Join(); } } public class ChildClassMap : ClassMap&lt;ChildClass&gt; { public ChildClassMap() { Id(x =&gt; x.ChildClassId).GeneratedBy.Guid(); Map(x =&gt; x.ChildCode).Not.Nullable(); } } </code></pre> <p>This fails:</p> <pre><code>DetachedCriteria criteria = DetachedCriteria.For(boType); criteria.Add(Expression.Eq("ChildClassRef.ChildCode", "ABC")); ICriteria runnableCriteria = detachedCriteria.GetExecutableCriteria(session); IList ilistResult = runnableCriteria.List(); </code></pre> <p>with error: "could not resolve property: ChildClassRef.ChildCode".</p> <p>However, this criteria works:</p> <pre><code>criteria.Add(Expression.Eq("ChildClassRef.ChildClassId", "931DAF7A-15D1-4B0B-8030-1C113BABC554")); </code></pre> <p>This, along with other evidence, suggests to me that my Fluent Reference mapping is correct (or maybe just slightly flawed). </p> <p>EDIT: Underlying tables:</p> <pre><code>ParentClass: ParentClassId, ChildClassId ChildClass: ChildClassId, ChildCode </code></pre>
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    1. USTrevor
    1. USTrevor
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    1. COIs the table column named "ChildCode"?
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      1. POQuery/Mapping problem using NHibernate
      1. USAGuyCalledGerald
    2. COTry queryover and it will remove all the ambiguity of string parameter names.
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      1. POQuery/Mapping problem using NHibernate
      1. USgt124
 

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