You are writing too much in the mapping...
btw"city cannot be found although  it definitely exist."
is not an NH's exception message.

2009/9/28 csetzkorn <[email protected]>

>
> Hi,
>
> Thanks I noticed the typo myself. Now it seems to work for the last
> object that has a reference to the city (here it is ok to delete the
> ‘last city’) but not for any objects ‘before’. I get an exception that
> the city cannot be found although  it definitely exist.
>
> Here are some fractions of my mapping file:
>
> ...
> <joined-subclass
>      name="Address" table="Addresses" dynamic-update="true">
>      <key foreign-key="ItemIdAddress" column="AddressId"></key>
> ...
> <many-to-one name="City" class="City" column="CityId" cascade="delete-
> orphan"  />
> ...
> </joined-subclass>
> ...
> <class name="City" table="Cities">
>
>    <id name="CityId" unsaved-value="0">
>      <column name="CityId" sql-type="bigint"/>
>      <generator class="identity" />
>    </id>
>
>    <property name="CityName" >
>      <column name="CityName" not-null="true" sql-type="char(100)"/>
>    </property>
>
>  </class>
>
> I am using generic DAOs for all my classes. This is the code for
> deletion:
>
> ...
> public void MakeTransient(T entity)
>        {
>            Session.Delete(entity);
>            Session.Flush();
>        }
> ...
>
> Looking forward to hearing from you.
>
> BTW is there a good book/paper/etc. with examples of more complicated
> scenarios of modelling and implementing different relationships plus
> DAO code exacmples. I have NHibernate in Action which only seems to
> touch the surface.
>
> Thanks.
>
> Christian
>
>
> On Sep 28, 4:41 pm, Fabio Maulo <[email protected]> wrote:
> > It is only a TYPO : It is "delete-orphan" and not "delete-orphans"
> >
> > 2009/9/28 csetzkorn <[email protected]>
> >
> >
> >
> >
> >
> >
> >
> > > Hi,
> >
> > > Can I use:
> >
> > > <many-to-one name="City" class="City" column="CityId" cascade="delete-
> > > orphans"  />
> >
> > > I get:
> >
> > > Unsupported cascade style: delete-orphans
> >
> > > although it says here (or not?):
> >
> > >http://groups.google.com/group/fluent-nhibernate/browse_thread/thread.
> ..
> >
> > > That I can use it.
> >
> > > Thanks.
> >
> > > Christian
> >
> > --
> > Fabio Maulo- Hide quoted text -
> >
> > - Show quoted text -
> >
>


-- 
Fabio Maulo

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