Hm, that is a bug then, with NH.
Please file a JIRA issue for this.
On Mon, Sep 22, 2008 at 5:25 PM, burkhard_m
<[EMAIL PROTECTED]>wrote:
>
> The answer is still the same:
>
> System.Data.SqlClient.SqlException: Incorrect syntax near '='.
>
> NHibernate: select descriptio0_.Id as Id0_, descriptio0_.Text as
> Text0_ from [T_Descriptions] descriptio0_ where
> (contains(descriptio0_.Text , @p0)=1 ); @p0 = '"Text*"'
>
>
>
> On 22 Sep., 15:34, "Ayende Rahien" <[EMAIL PROTECTED]> wrote:
> > Try = 1
> >
> > On Mon, Sep 22, 2008 at 4:23 PM, burkhard_m
> > <[EMAIL PROTECTED]>wrote:
> >
> >
> >
> >
> >
> > > @Eric: thanks the Expression.Sql() restriction works.
> > > Anyhow there must be a way to register the function with NHibernate.
> > > So I tried Ayende Rahien's suggestion but still no success.
> >
> > > I registered the CONTAINS function like this:
> > > RegisterFunction("contains", new
> > > SQLFunctionTemplate(NHibernateUtil.Boolean, "contains(?1,?2)"))); [/
> > > code]
> >
> > > So now, the HQL parser expects CONTAINS to be a function with return
> > > type boolean. In other words, its a [i]predicate[/i], a boolean-valued
> > > characteristic function.
> >
> > > So I wrote the query like this:
> > > ISession session = GetSession();
> > > var result = session.CreateQuery("FROM Description d WHERE
> > > contains( d.Text, :searchValue)").SetString("searchValue", "\"Text*
> > > \"").List();
> >
> > > But NHibernate complains, because it expects a comparison, like
> > > ... WHERE contains( d.Text, :searchValue) = TRUE ...
> >
> > > So I changed the query to:
> > > ISession session = GetSession();
> > > var result = session.CreateQuery("FROM Description d WHERE
> > > contains( d.Text, :searchValue)" = TRUE).SetString("searchValue",
> > > "\"Text*\"").List();
> > > Now the query is accepted by NHibernate, but of course that's no valid
> > > SQL statement and MSSQL Server complains about the syntax.
> >
> > > I found the same problem described here:
> > >http://forum.hibernate.org/viewtopic.php?p=2386233
> >
> > > So the question is, how do I treat predicate functions?
> > > And how do I express the query, that both NHibernate and MSSQL-Server
> > > accept it?
> >
> > > On 19 Sep., 17:35, Eric Hauser <[EMAIL PROTECTED]> wrote:
> > > > If you don't want to mess with learning the Criteria API for complex
> > > > queries, then just use the native SQL option:
> >
> > > >http://www.hibernate.org/hib_docs/nhibernate/html/querysql.html
> >
> > > > On Sep 19, 11:10 am, burkhard_m <[EMAIL PROTECTED]>
> > > > wrote:
> >
> > > > > Hi Eric,
> >
> > > > > Thanks, I read about that kind of solution. But in my case it's
> rather
> > > > > complicated.
> >
> > > > > For each Article we have diffrent kind of lists containing
> > > > > descriptions in diffrent languages.
> > > > > In particular we have ShortTexts, LongTexts, Keywords and
> MediaTexts
> > > > > for each Article.
> >
> > > > > Here is a sample query using the LIKE-Expression:
> >
> > > > > new SimpleQuery<Article>(typeof(Article), "SELECT DISTINCT a FROM
> > > > > Article a, ShortTextDescriptionContainer stc, ShortTextDescription
> sd,
> > > > > LongTextDescriptionContainer ltc, LongTextDescription ld WHERE
> (stc
> > > > > IN elements(a.ShortTexts) AND sd IN (FROM stc.Content WHERE Text
> > > > > LIKE ?)) OR (ltc IN elements(a.LongTexts) AND ld IN (FROM
> ltc.Content
> > > > > WHERE Text LIKE ?))", "%Calculator%", "%Calculator%");
> >
> > > > > Of course we've got a lot of descriptions and using the LIKE-
> > > > > Expression takes minutes. So we'd like to use full text search
> > > > > instead.
> > > > > Maybe there is a better solution?
> >
> > > > > On 19 Sep., 16:42, Eric Hauser <[EMAIL PROTECTED]> wrote:
> >
> > > > > > For a simple case like that, I would just use the criteria API
> and an
> > > > > > Expression.Sql() restriction.
> >
> > >http://www.hibernate.org/hib_docs/nhibernate/1.2/reference/en/html/qu.
> ..
> >
> > > > > > On Sep 19, 7:57 am, burkhard_m <[EMAIL PROTECTED]>
> > > wrote:
> >
> > > > > > > Hi everyone!
> >
> > > > > > > I'm currently working on a small merchandise management tool
> and
> > > have
> > > > > > > to implement a full-text search for the article
> descriptions.Our
> > > > > > > project is based on NHibernate & ActiveRecord as well as MSSQL
> > > Server
> > > > > > > 2005 and we would prefer to use the indexing capability of the
> SQL
> > > > > > > Server rather than implementing NHibernate.Search with
> Lucene.NET.
> >
> > > > > > > I have read about several suggestions at Google Groups
> including
> > > > > > > Ayende Rahien's:
> > > > > > > "You need to create an derived dialect and register the
> contains
> > > > > > > function, if
> > > > > > > you want to use HQL. Or, you can create an ICritertion
> > > implementation
> > > > > > > that will deal with this."
> > > > > > > (seehttp://
> > > groups.google.com/group/nhusers/browse_thread/thread/e9745dafd...)
> >
> > > > > > > I tried hard for several days but I'm stuck. I have no idea how
> to
> > > > > > > implement this correctly.
> > > > > > > All I get is a QueryException telling me that I have a
> "Incorrect
> > > > > > > query syntax".
> >
> > > > > > > Yes, the Full text indexing is activated for the property
> 'Text'.
> > > > > > > The SQL-Query works:
> > > > > > > SELECT * FROM [dbo].[T_Descriptions]
> > > > > > > WHERE CONTAINS(Text, ' "T*" ')
> >
> > > > > > > The HQL-Query "FROM Description d WHERE d.Text LIKE 'T%'" also
> > > works
> > > > > > > fine.
> >
> > > > > > > Would anyone help me, please?
> > > > > > > Maybe you could tell me what I have done wrong from the
> following
> > > > > > > code?
> >
> > > > > > > Thanks a lot!
> >
> > > > > > > Best regards,
> > > > > > > Martin
> >
> > > > > > > // The config section
> >
> > > > > > > <activerecord isWeb="false">
> > > > > > > <config>
> > > > > > > <add key="hibernate.connection.driver_class"
> > > > > > > value="NHibernate.Driver.SqlClientDriver" />
> > > > > > > <add key="hibernate.dialect"
> value="SQLServerDialectWithFTS,
> > > > > > > <AssemblyName>" />
> > > > > > > <add key="hibernate.connection.provider"
> > > > > > > value="NHibernate.Connection.DriverConnectionProvider" />
> > > > > > > <add key="hibernate.max_fetch_depth" value="3"></add>
> > > > > > > <add key="hibernate.connection.connection_string"
> > > > > > > value="ConnectionString = ${ourConnectionString}" />
> > > > > > > </config>
> > > > > > > </activerecord>
> >
> > > > > > > // The model
> >
> > > > > > > [ActiveRecord("[T_Descriptions]")]
> > > > > > > [Serializable]
> > > > > > > public class Description : ActiveRecordBase<Description>
> > > > > > > {
> > > > > > > protected Description() {}
> >
> > > > > > > protected Description(string text) : this()
> > > > > > > {
> > > > > > > Text = text;
> > > > > > > }
> >
> > > > > > > [PrimaryKey]
> > > > > > > public long Id { get; set; }
> >
> > > > > > > [Property]
> > > > > > > public string Text { get; set; }
> > > > > > > }
> >
> > > > > > > // The customized dialect
> >
> > > > > > > public class SQLServerDialectWithFTS : MsSql2005Dialect
> > > > > > > {
> > > > > > > public SQLServerDialectWithFTS()
> > > > > > > {
> > > > > > > RegisterFunction("CONTAINS", new
> > > > > > > StandardSQLFunction("CONTAINS", NHibernateUtil.String));
> > > > > > > }
> > > > > > > }
> >
> > > > > > > // The search
> >
> > > > > > > IConfigurationSource source =
> > > ActiveRecordSectionHandler.Instance;
> >
> > >
> Castle.ActiveRecord.ActiveRecordStarter.Initialize(typeof(Description).Asse
> > > mbly,
> > > > > > > source);
> >
> > > > > > > using(SessionScope scope = new SessionScope())
> > > > > > > {
> > > > > > > var sq = new SimpleQuery<Description>(typeof
> (Description),
> > > > > > > "FROM Description d
> > > WHERE
> > > > > > > CONTAINS(d.Text, ' \"T*\" ')");
> > > > > > > var res = sq.Execute();
> > > > > > > }- Zitierten Text ausblenden -
> >
> > > > > > - Zitierten Text anzeigen -- Zitierten Text ausblenden -
> >
> > > > - Zitierten Text anzeigen -- Zitierten Text ausblenden -
> >
> > - Zitierten Text anzeigen -
> >
>
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