>
> ISQLQuery qry = NHibernateSession.Instance.Current.CreateSQLQuery ("SELECT
> CASE WHEN {t.Priority} ='High' THEN 0 ELSE 1 END AS BatchPrioritySort, {t.*}
> FROM TranslationBatch AS {t} ORDER BY BatchPrioritySort
> ASC").AddEntity(typeof(TranslationBatch));
two fixes:
1. FROM TranslationBatch AS {t} => FROM TranslationBatch t
2. .AddEntity(typeof(TranslationBatch)); =>
.AddEntity("t",typeof(TranslationBatch));
On Thu, Feb 12, 2009 at 11:43 PM, RDot <[email protected]> wrote:
>
> Hi Ken -
>
> I'm feeling like an Nhibernate loser! I can't figure this out...
>
> I have been trying variations of what you sent me and nothing
> works. Here is some sample code.
>
> ISQLQuery qry = NHibernateSession.Instance.Current.CreateSQLQuery
> ("SELECT CASE WHEN {t.Priority} ='High' THEN 0 ELSE 1 END AS
> BatchPrioritySort, {t.*} FROM TranslationBatch AS {t} ORDER BY
> BatchPrioritySort ASC").AddEntity(typeof(TranslationBatch));
>
> I have tried putting the sql in exactly as you have typed it. I have
> modified the alias syntax several different ways. By alias syntax I
> mean the {t.*} in the select clause and the {t} when declaring the
> table alias. I've reviewed the NHibernate PDF and it appears i'm
> doing this correctly.
>
> Whenever I do a .list() on the qry object I get the following
> Exception..
> --"could not execute query\r\n[ SELECT CASE WHEN {t.Priority}
> ='High' THEN 0 ELSE 1 END AS BatchPrioritySort, {t.*} FROM
> TranslationBatch AS {t} ORDER BY
> BatchPrioritySort ASC ]\r\n[SQL: SELECT CASE WHEN {t.Priority}
> ='High' THEN 0 ELSE 1 END AS BatchPrioritySort, {t.*} FROM
> TranslationBatch AS {t} ORDER
> BY BatchPrioritySort ASC]"
>
> --inner exception is - "Incorrect syntax near '.'."
>
> Obviously i'm not building the SQL text appropriately because what
> Nhibernate is generating is blowing up. Any other thoughts?
>
> Heck I can't even get the following code to work...
>
> ISQLQuery qry = NHibernateSession.Instance.Current.CreateSQLQuery
> ("SELECT * FROM TranslationBatch").AddEntity(typeof
> (TranslationBatch));
> qry.List() throws an Exception...
> --"could not execute query\r\n[ SELECT * FROM TranslationBatch ]\r\n
> [SQL: SELECT * FROM TranslationBatch]:'
> --Inner Exception - {"Value cannot be null.\r\nParameter name:
> fieldName"}
>
> I figured this would be easy. Any insight you can provide would
> be appreciated. Good Karma you way. :-)
>
> Thanks -
>
>
>
>
>
> On Feb 12, 8:46 am, Ken Egozi <[email protected]> wrote:
> > This mean that NH will expand the {t.*] bit to the fields that are mapped
> > on TranslationBatch.
> >
> >
> >
> > On Thu, Feb 12, 2009 at 4:37 PM, RDot <[email protected]>
> wrote:
> >
> > > Hi Ken -
> >
> > > Thanks for your response - I need to understand the expansion syntax
> > > more. I will search around to understand this syntax.
> >
> > > On Feb 12, 12:56 am, Ken Egozi <[email protected]> wrote:
> > > > you can use SQL for this one, with the expansion syntax:
> > > > SELECT
> > > > CASE
> > > > WHEN Priority = 'High' THEN 0
> > > > ELSE 1
> > > > END AS BatchPrioritySort,
> > > > *{t.*}*
> > > > FROM
> > > > TranslationBatch *AS t*
> > > > ORDER BY BatchPrioritySort ASC
> >
> > > > On Thu, Feb 12, 2009 at 12:59 AM, John Rayner <
> [email protected]
> > > >wrote:
> >
> > > > > Don't think I follow your reasons why you can't have a formula
> field.
> > > > > It looks to me like that would be the way forward here.
> >
> > > > > On Feb 11, 2:47 pm, RDot <[email protected]> wrote:
> > > > > > Hi -
> >
> > > > > > nhibernate version: 1.2.1.4000
> > > > > > SQL Server 2005
> > > > > > C# 2.0
> >
> > > > > > If you use Projections when using the Criteria API can you
> still
> > > > > > populate the regular entity object?
> >
> > > > > > I want to add a new field in my select statement which I can
> then
> > > > > > order by but I also want to populate the entity object.
> >
> > > > > > I have read the documentation and browsed the web and it appears
> > > > > > whenever you use projections you are now working with an IList.
> >
> > > > > > The sample SQL I need is something along this line...
> >
> > > > > > select case when Priority = 'High' then 0 else 1
> > > > > > end AS BatchPrioritySort, *
> > > > > > from TranslationBatch
> > > > > > order by BatchPrioritySort ASC
> >
> > > > > > So I want a List<TranslationBatch> objects returned. I
> can't
> > > use
> > > > > > a formula field because sometimes the 'case when' clause will
> sort
> > > > > > differently based on different priority values. I want to use
> the
> > > > > > Criteria API because I build a long Where clause based on fields
> the
> > > > > > user has filtered on.
> >
> > > > > > I have researched and tried to make the SetResultTransformer
> work
> > > > > > to no avail.
> >
> > > > > > This seems very simple, am I missing something?
> >
> > > > > > Thanks -
> >
> > > > --
> > > > Ken Egozi.
> > >http://www.kenegozi.com/bloghttp://www.delver.comhttp://www.musicglue.
> ..
> >
> > --
> > Ken Egozi.
> http://www.kenegozi.com/bloghttp://www.delver.comhttp://www.musicglue.comhttp://www.castleproject.orghttp://www.gotfriends.co.il
> >
>
--
Ken Egozi.
http://www.kenegozi.com/blog
http://www.delver.com
http://www.musicglue.com
http://www.castleproject.org
http://www.gotfriends.co.il
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