NHibernate "Errors in named queries"
I have the following named SQL query defined:
<sql-query name="ItemSearch">
<return class="ItemSearchResult">
<return-property name="Item" column="ItemId" />
<return-property name="Distance" column="Distance" />
</return>
SELECT
Items.*,
dbo.DistanceBetween(Latitude, Longitude, :lat, :long) AS Distance
FROM Items
WHERE Contains(Name, :keywords)
ORDER BY Distance ASC
</sql-query>
Whenever I try to run my application, I get the generic error "Errors in named queries: {ItemSearch}". Is there something obviously wrong here?
The ItemSearchResult class is a very simple wrapper class that looks like this:
public class ItemSearchResult
{
public Item Item {get; set;}
public double Distance {get; set;}
}
Do you have a correct .hbm.xml
for ItemSearchResult
? If you use ItemSearchResult
in your query, then you need to have a .hbm.xml
for it. Just like entities.
Here is a sample from my code: The only few things that are different between the NHibernate version and my Hibernate is the auto-import and I would assume the package.
<hibernate-mapping auto-import="true" package="PackageName">
<class name="Name of class to maptop">
<composite-id>
<key-property name="<name of parameter>" type="TYPE"/>
</composite-id>
<property name="COLUMNNAME" type="TYPE"/>
</class>
<sql-query name="queryName">
<return alias="dr" class="Name of class to map to"/>
select columnName as {dr.nameofColumn},
from table
</sql-query>
</hibernate-mapping>
I think the problem that exists in your code is that you did not specifically map out the columns and how they map to your class.
Note: If there are any fields that do not correspond to the NHibernate XML format let me know through the comments. I don't have access to my NHibernate mapping files right now.
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