How to map a composite-id when using interfaces (or how to change the class attribute in the key-many-to-one tag)
Hello,
i'm trying to switch out .hbm mappings to fluent mappings an have a problem with the mapping of composite-ids and the usage of Interfaces
the Class looks at follows:
public class ClassWithCompositeId {
public virtual IKeyOne KeyOne { get; set; }
public virtual IKeyTwo KeyTwo { get; set; }
}our hbm mapping looks like this:
<hibernate-mapping ...>
<class name="ClassWithCompositeId" table="t_classwithcompositeid">
<composite-id>
<key-many-to-one name="KeyOne" column="colkeyone" class="company.namespace.KeyOneImplementation, BL_Stammdaten" />
<key-many-to-one name="KeyTwo" column="colkeytwo" class="KeyTwoImplementation" />
</composite-id>
</hibernate-mapping>Please note, that we got interfaces in the Class! Now I'm trying to map this with Fluent nhibernate.
Map {
public ClassWithCompositeIdMap() {
CompositeId()
.KeyReference(x => x.KeyOne, "colkeyone")
.KeyReference(x => x.KeyTwo, "colkeytwo");
...
}
}But now Fluent generates the Mapping as follows:
...
<composite-id mapped="false" unsaved-value="undefined">
<key-many-to-one name="KeyOne" class="company.namespace.IKeyOne, Interfaces, Version=0.1.4.3379, Culture=neutral, PublicKeyToken=null">
<column name="colkeyone" />
</key-many-to-one>
<key-many-to-one name="KeyTwo" class="company.namespace.IKeyTwo, Interfaces, Version=0.1.4.3379, Culture=neutral, PublicKeyToken=null">
<column name="colkeytwo" />
</key-many-to-one>
</composite-id>
...The "Class" Attribute points now to the Interface not to the implementation of this interface.
How can I tell Fluent nHibernate to use another class as the attribute value?
Regards
MoJo
Support Staff 2 Posted by Paul Batum on 24 Oct, 2010 04:12 AM
This was an oversight on our fluent interface. It was very quick to resolve
so I've pushed a change to my repository:
http://github.com/paulbatum/fluent-nhibernate/tree/dev
<http://github.com/paulbatum/fluent-nhibernate/tree/dev>You would use it
like so:
Map {
public ClassWithCompositeIdMap() {
CompositeId()
.KeyReference(x => x.KeyOne, k =>
k.Type<KeyOneImplementation>(), "colkeyone")
.KeyReference(x => x.KeyTwo, k =>
k.Type<KeyTwoImplementation>(), "colkeytwo");
...
}
}
It should be in the official trunk before too long.
On Sat, Oct 23, 2010 at 12:21 AM, Christian Erhardt <
***@tenderapp.com<tender%***@tenderapp.com>
> wrote:
3 Posted by Christian Erhardt on 24 Oct, 2010 08:33 AM
Ah, okay! I patched Fluent nHibernate here and added a parameter like you did. I though already that this feature was not yet implemented.
How do I know that this feature is available in the trunk?
Support Staff 4 Posted by James Gregory on 24 Oct, 2010 10:16 AM
I periodically merge changes into the master/trunk when Paul tells me to.
Until I get the go-ahead, you can just build the source from Paul's branch.
On Sun, Oct 24, 2010 at 9:35 AM, Christian Erhardt <
***@tenderapp.com<tender%***@tenderapp.com>
> wrote:
5 Posted by Christian Erhardt on 24 Oct, 2010 04:06 PM
Okay, thank you both very very much!
James Gregory closed this discussion on 05 Nov, 2010 02:04 PM.
Christian Erhardt re-opened this discussion on 31 Dec, 2010 09:39 AM
6 Posted by Christian Erhardt on 31 Dec, 2010 09:39 AM
One last question:
I had to build fluent against nHibernate 3.0.1 because of an bug i ran into. But Pauls change did not make it to the trunk yet. So i had to patch it manually. Can you tell me if this patch makes it to the trunk someday?
Thank you!
Christian Erhardt