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thasmin
 Post subject: column named 'Size' bug
PostPosted: Fri Dec 29, 2006 9:54 am 
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Joined: Mon Jan 02, 2006 9:57 pm
Posts: 7
I was wondering if the bug where NHibernate would not be able to read the data in a column named 'Size' was fixed. I don't see it in the 1.0.3 release notes but they say almost every known bug was fixed. I looked for it in the Jira but I couldn't come up with a search that didn't have a ton of results. Can someone provide either an answer or a link to the Jira issue? If there is none, I'll write one up. Thanks.

Dan
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sergey
 Post subject:
PostPosted: Fri Dec 29, 2006 10:27 am 
Contributor
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Joined: Wed May 11, 2005 4:59 pm
Posts: 1766
Location: Prague, Czech Republic
We don't know about any such issue. Read the documentation and post problem details on the forum before submitting an issue to JIRA.
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thasmin
 Post subject:
PostPosted: Fri Dec 29, 2006 10:56 am 
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Joined: Mon Jan 02, 2006 9:57 pm
Posts: 7
Ok. Let me pull together a way to reproduce it and I'll post the details.
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thasmin
 Post subject:
PostPosted: Fri Dec 29, 2006 12:42 pm 
Newbie

Joined: Mon Jan 02, 2006 9:57 pm
Posts: 7
It's looking like I won't be able to retest this properly before January 3rd so I'll post what I can. I'm using NHibernate 1.0.2 and an Access DB via the JetDriver dll (which may be the cause of the problem). I apologize for not upgrading before posting. I don't have the time at the moment, I'm leaving on vacation in a couple of hours. I can upgrade and retest when I get back.

The following line in the .hbm.xml file and corresponding property in the .cs causes a crash.
Code:
<property column="Size" type="Int32" name="Size" />

Exception:
Unable to perform find

Inner Exception:
IErrorInfo.GetDescription failed with E_FAIL(0x80004005).
Stack Trace:
   at System.Data.OleDb.OleDbCommand.ExecuteCommandTextForSingleResult(tagDBPARAMS dbParams, Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteCommandText(Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteCommand(CommandBehavior behavior, Object& executeResult)
   at System.Data.OleDb.OleDbCommand.ExecuteReaderInternal(CommandBehavior behavior, String method)
   at System.Data.OleDb.OleDbCommand.ExecuteReader(CommandBehavior behavior)
   at System.Data.OleDb.OleDbCommand.ExecuteReader()
   at NHibernate.JetDriver.JetDbCommand.System.Data.IDbCommand.ExecuteReader()
   at NHibernate.Impl.BatcherImpl.ExecuteReader(IDbCommand cmd)
   at NHibernate.Loader.Loader.GetResultSet(IDbCommand st, RowSelection selection, ISessionImplementor session)
   at NHibernate.Loader.Loader.DoQuery(ISessionImplementor session, QueryParameters queryParameters, Object optionalObject, Object optionalId, Object[] optionalCollectionKeys, Boolean returnProxies)
   at NHibernate.Loader.Loader.DoQueryAndInitializeNonLazyCollections(ISessionImplementor session, QueryParameters queryParameters, Object optionalObject, Object optionalId, Object[] optionalCollectionKeys, Boolean returnProxies)
   at NHibernate.Loader.Loader.DoList(ISessionImplementor session, QueryParameters queryParameters)
   at NHibernate.Loader.Loader.List(ISessionImplementor session, QueryParameters queryParameters, ISet querySpaces, IType[] resultTypes)
   at NHibernate.Loader.CriteriaLoader.List(ISessionImplementor session)
   at NHibernate.Impl.SessionImpl.Find(CriteriaImpl criteria)
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sergey
 Post subject:
PostPosted: Fri Dec 29, 2006 1:38 pm 
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Joined: Wed May 11, 2005 4:59 pm
Posts: 1766
Location: Prague, Czech Republic
A problem that often happens is when a column is named using a reserved word. In this case you should quote the column name using backticks. However, it would be easier to diagnose the problem if the GetDescription call didn't fail...
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