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PONhibernate select query triggers Update statement - unintended, Why?
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  1. PONhibernate select query triggers Update statement - unintended, Why?
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    copied!<p>I have the following code wich causes an Update on the DB as calling Commit().</p> <pre><code>using (ISession t = DBSessionManager.GetDBSessionController(Database).GetDBSession()) { using (var tx = t.BeginTransaction()) { var o = t.Linq&lt;Appendix&gt;(); o.Expand("Instruments"); o.Expand("Language"); o.Expand("MifidCompliance"); o.Expand("IBAppendix"); var ret = (from ss in o where ss.AppendixHierachy.id == hierarchyId select ss).ToList(); tx.Commit(); return ret; //this hql also causes the updates string hqlString = "select a from Appendix as a join fetch a.Language as l join fetch a.MifidCompliance as mifid left join fetch a.Instruments i left join a.IBAppendix as ib where a.AppendixHierachy = " + hierarchyId; IQuery query = t.CreateQuery(hqlString); var items = query.List&lt;Appendix&gt;(); tx.Commit(); return (List&lt;Appendix&gt;)items; } } </code></pre> <p>It seems to update with Commit all the appendix which fullfill the restriction.(NH Profiler)</p> <pre><code>UPDATE appendix SET appendix = '0x255044462D312E340A25C7E461215928AE3FBD7DF6F17204439AE9AF...' /* @p0_0 */, creatorEmpId = 0 /* @p1_0 */, disclaimerOffset = 0 /* @p2_0 */, fileExtension = 'PDF' /* @p3_0 */, publishedDate = '2008-10-02T18:34:50.00' /* @p4_0 */, reportPositionId = 0 /* @p5_0 */, summary = ' summaryText...' /* @p6_0 */, thumbnail = '0xFFD8...' /* @p7_0 */, title = 'Nitto Denko - Upgrade: Pessimism already priced in' /* @p8_0 */, appendixHierarchyId = 12 /* @p9_0 */, languageId = 101 /* @p10_0 */, MifidComplianceId = 110 /* @p11_0 */ WHERE id = 337815 /* @p12_0 */ </code></pre> <p>Why is that? If the is some IBAppendix available then it works without updates: Here is the mapping:</p> <pre><code>public class IBAppendixMap : ClassMap&lt;IBAppendix&gt; { public IBAppendixMap() { Id(x =&gt; x.id).GeneratedBy.Foreign("Appendix"); Map(x =&gt; x.RIXMLProductID); References(x =&gt; x.Appendix).Column("Appendix_id"); } } public class AppendixMap : ClassMap&lt;Appendix&gt; { public AppendixMap () { Table("appendix"); Id(x =&gt; x.id).GeneratedBy.Custom(typeof(ATKIdGenerator), a =&gt; a.AddParam("TableName", "appendix")); References(x =&gt; x.AppendixHierachy).Column("appendixHierarchyId").Not.Nullable(); Map(x =&gt; x.appendix); Map(x =&gt; x.creatorEmpId); Map(x =&gt; x.disclaimerOffset); Map(x =&gt; x.fileExtension); References(x =&gt; x.Language).Column("languageId"); References(x =&gt; x.MifidCompliance).Column("MifidComplianceId"); Map(x =&gt; x.publishedDate); Map(x =&gt; x.reportPositionId); Map(x =&gt; x.summary).Length(7000); Map(x =&gt; x.thumbnailbyte).Column("thumbnail"); Map(x =&gt; x.title); HasManyToMany(x =&gt; x.Instruments).Table("instAppendix").ParentKeyColumn("appendixId").ChildKeyColumn("instId"); HasOne( x =&gt; x.IBAppendix).Cascade.All(); } } </code></pre> <p>I never expected that some simple select would cause an update on the db! Has anyone ideas why that is?</p>
 

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