Great, I'm happy you like the custom mapping feature.. It was quite a challenge to implement it. I wish we could more easily implement manual custom mapping and also use more XWQL so that queries are compatible between custom mapping and non custom mapping Still a lot of work
Ludovic 2011/11/17 Edo Beutler <[email protected]> > Hi Ludovic > > Thank you for your answer. > After discussing it we decided to leave this field unmapped. We map > this class since we expect many objects and need to list it in > different combinations (e.g. show all where field x=y and p=q) which > would lead to lots of joins. We think mapping the DBList to its own > subtable would not make much of a difference to not mapping it and the > DBList field is not that important for our listings anyway, so we will > leave it unmapped for now. If we should run into problems with this > field later we will see then how we can solve them. > Btw.: Three cheers for the possibility to custom map classes > partially. It's not the first time this feature comes in handy :) > > Thanks > Edo > > On Wed, Nov 16, 2011 at 6:40 PM, Ludovic Dubost <[email protected]> wrote: > > Trying to guess it it could be: > > > > <list name="nameofyourfield" table="nameofyoursubtable" lazy="false"> > > <key> > > <column name="XWL_ID" /> > > </key> > > <index column="XWL_NUMBER"/> > > <element column="XWL_VALUE" type="string" /> > > </list> > > > > XWL_ID -> field that represents the id of your objkect > > > > > > 2011/11/16 Ludovic Dubost <[email protected]> > > > >> A multi select DB list is stored in a sub table. It seems you have used > a > >> string to store the value but you can't. > >> Look at the hbm of XWiki on the way the DBStringListProperty is done > >> > >> <joined-subclass > name="com.xpn.xwiki.objects.DBStringListProperty" > >> table="xwikilists"> > >> <key> > >> <column name="XWL_ID" /> > >> <column name="XWL_NAME" /> > >> </key> > >> <list name="list" table="xwikilistitems" lazy="false"> > >> <key> > >> <column name="XWL_ID" /> > >> <column name="XWL_NAME" /> > >> </key> > >> <index column="XWL_NUMBER"/> > >> <element column="XWL_VALUE" type="string" /> > >> </list> > >> </joined-subclass> > >> > >> Now I'm not sure exactly how to do it. I've never tried it. If you make > it > >> work please tell us. > >> > >> 2011/11/16 Edo Beutler <[email protected]> > >> > >>> Hi > >>> > >>> Today I tried to create a custom mapping for a class. One field of the > >>> class is a DBList with the "Multiple Select" option activated. To save > >>> the values to the DB I wanted to use a string field like I'm used to > >>> with static lists and non multi select DB lists. Now I get the > >>> following exception when trying to save a Document with an object > >>> attached: "java.util.ArrayList cannot be cast to java.lang.String" > >>> > >>> How could I custom map a DBList field if String ist not possible? or > >>> is there even a simple Solution I missed? > >>> > >>> A hint in the right direction would be appreciated > >>> Edo > >>> _______________________________________________ > >>> devs mailing list > >>> [email protected] > >>> http://lists.xwiki.org/mailman/listinfo/devs > >>> > >> > >> > >> > >> -- > >> Ludovic Dubost > >> Founder and CEO > >> Blog: http://blog.ludovic.org/ > >> XWiki: http://www.xwiki.com > >> Skype: ldubost GTalk: ldubost > >> > >> > > > > > > -- > > Ludovic Dubost > > Founder and CEO > > Blog: http://blog.ludovic.org/ > > XWiki: http://www.xwiki.com > > Skype: ldubost GTalk: ldubost > > _______________________________________________ > > devs mailing list > > [email protected] > > http://lists.xwiki.org/mailman/listinfo/devs > > > _______________________________________________ > devs mailing list > [email protected] > http://lists.xwiki.org/mailman/listinfo/devs > -- Ludovic Dubost Founder and CEO Blog: http://blog.ludovic.org/ XWiki: http://www.xwiki.com Skype: ldubost GTalk: ldubost _______________________________________________ devs mailing list [email protected] http://lists.xwiki.org/mailman/listinfo/devs
