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PONHibernate extract DBTransaction from Session
 

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    <p>I have an legacy db where some stored proc calculates the row ids for all the tables. Now I want to overwrite the IIdentifierGenerator as hinted at this page <a href="http://www.richter-web.info/Wordpress/?p=132" rel="nofollow noreferrer">http://www.richter-web.info/Wordpress/?p=132</a> just to avoid the Id(x => x.id).GenereatedBy.Assigned.</p> <p>Now as I save some object,of course inside an Nhibernate transaction, named AppendixHierarchy, then as soon as it gets into ATKIdGenerator.Generate and it starts command.ExecuteNonQuery() I receive some exception ExecuteNonQuery requires the command to have a transaction when the connection assigned to the command is in a pending local transaction. The Transaction property of the command has not been initialized.</p> <p>How can I extract the DB Transaction from the Nhibernate session object, in order to attach it to the command?</p> <p>I used the FluentMapping for the poco</p> <pre><code> public AppendixHierarchyMap() { Table("appendixHierarchy"); Id(x =&gt; x.id).GeneratedBy.Custom(typeof(ATKIdGenerator), a =&gt; a.AddParam("TableName", "appendixHierarchy")); ..... </code></pre> <p>And here is the Id Generator</p> <pre><code>public class ATKIdGenerator : IIdentifierGenerator, IConfigurable { private string TableName { get; set; } #region IIdentifierGenerator Members public object Generate(NHibernate.Engine.ISessionImplementor session, object obj) { IDbCommand command = new SqlCommand(); command.Connection = session.Connection; //transaction.Enlist(command); command.CommandType = CommandType.StoredProcedure; command.CommandText = "dbo.ups_GetNewId"; // Set input parameters var parm = new SqlParameter("@tableName", SqlDbType.VarChar); parm.Value = TableName; command.Parameters.Add(parm); // Set output parameter var outputParameter = new SqlParameter("@id", SqlDbType.Int); outputParameter.Direction = ParameterDirection.Output; command.Parameters.Add(outputParameter); // Set a return value var returnParameter = new SqlParameter("@RETURN_VALUE", SqlDbType.Int); returnParameter.Direction = ParameterDirection.ReturnValue; command.Parameters.Add(returnParameter); // Execute the stored procedure command.ExecuteNonQuery(); return (int)((SqlParameter)command.Parameters["@id"]).Value; } #endregion #region IConfigurable Members public void Configure(NHibernate.Type.IType type, IDictionary&lt;string, string&gt; parms, NHibernate.Dialect.Dialect d) { TableName = parms["TableName"]; } #endregion } </code></pre>
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