This one time, at band camp, Mark Koch said: MK >So by your explanation, I could add depends="jdo.TestMaster" to the mapping MK >for TestGroup and I should be able to just call create() for the TestMaster MK >object which contains the TestGroup. MK > MK ><class name="jdo.TestGroup" depends="jdo.TestMaster" access="shared" MK >identity="id"> MK > MK >JDO would then recognize the dependent relationship and create the entry in MK >the test_group table. ( all above references of course are to the test suite MK >). There wouldn't be a need to independently call _db.create(group). MK > MK >I've tried to do this, and the group is never inserted. Am I missing MK >something?
Mark, Yes, you're partially correct here. Adding the depends attribute in the mapping of the class is one thing that is necessary. However, I've also noticed that the TestGroup does not have a relation back to the TestMaster. There are certain situations where Castor will not completely enforce it, but Castor requiress bi-directional relationships. Meaning that if TestMaster contains a relation to TestGroup (and I've noticed that it does contain one - it's called _group) then TestGroup must also contain a reciprocal relation to TestMaster (I've notice that this is missing). I haven't dug that deep but it seems to me that the relation in TestMaster to TestGroup needs to be added. I hope I didn't completely confuse you there. Please see http://castor.exolab.org/castor-one.html#Dependent-and-related-relationships. Also see http://castor.exolab.org/jdo-faq.html#Technical-questions under the heading 'Can Castor automatically create/remove related objects?' The one thing that is not explicitly mentioned in any of the docs (not that I know of anyway) is the notion of bi-directional relationships. Simply if object A refers to Object B, then Object B must refer to Object A. Like I said, there are circumstances where Castor does not strictly enforce this, but it's safer to model bi-directional relations that not to. Bruce -- perl -e 'print unpack("u30","<0G)U8V4\@4VYY9&5R\"F9E<G)E=\$\!F<FEI+F-O;0\`\`");' ----------------------------------------------------------- If you wish to unsubscribe from this mailing, send mail to [EMAIL PROTECTED] with a subject of: unsubscribe castor-dev
