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POLazy loading not working for many-to-one relationship when mapping to a non-key field using property-ref
 

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  1. POLazy loading not working for many-to-one relationship when mapping to a non-key field using property-ref
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    <p>I have a legacy database that I am mapping using NHibernate. The objects of concern are an Account and a list of Notification objects. The objects look like: </p> <pre><code>public class Notification { public virtual int Id { get; set; } public virtual DateTime BatchDate { get; set; } /* other properties */ public virtual Account Account { get; set; } } public class Account { public virtual int Id { get; set; } public virtual string AccountNumber { get; set; } /* other properties */ } </code></pre> <p>The mapping files look like:</p> <pre><code>&lt;class name="Account" table="Account" dynamic-update="true"&gt; &lt;id name="Id" column="AccountID"&gt; &lt;generator class="native" /&gt; &lt;/id&gt; &lt;property name="AccountNumber" length="15" not-null="true" /&gt; &lt;!-- other properties --&gt; &lt;/class&gt; &lt;class name="Notification" table="Notification"&gt; &lt;id name="Id" column="Id"&gt; &lt;generator class="native" /&gt; &lt;/id&gt; &lt;!-- other properties --&gt; &lt;many-to-one name="Account" class="Account" property-ref="AccountNumber" lazy="proxy"&gt; &lt;column name="AcctNum" /&gt; &lt;/many-to-one&gt; </code></pre> <p>However, when I create a criteria such as </p> <pre><code>return session.CreateCriteria(typeof(Notification)).List&lt;Notification&gt;(); </code></pre> <p>I am getting a Select N+1 case where each account is loaded even though the Account is never referenced. Why are all of the accounts getting loaded when the many-to-one is mapped as a lazy proxy?</p>
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    1. USSteveBering
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    1. COI get the same issue, I do remember seeing a post somehwere saying many-to-one property ref's can't be lazy loaded, I just cant find the source. This was with NH 1.2
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