No answers to my question :( Could it be that my question is stupid... I wonder? :)
On Wed, Sep 2, 2009 at 1:05 PM, Ajay Chitre <chitre.a...@gmail.com> wrote: > Hello, > > I am a newbie to Datastore. Here's what I am trying to accomplish: > > Trying to set an "Unowned" one-to-many relationship between 2 objects. (I > chose "unowned" because I wasn't sure if I could have an "owned" > many-to-many. Also wasn't sure if "lazy loading" is available for the > children. Is "owned" the recommended way?) > > Anyway, I have a *Parent *class in which I have this... > > @Persistent > private Set<Key> children = new HashSet<Key>(); > > In the *Child *class I have this... > > @Persistent > private Key parent = null; > > I am doing the following: > > 1) Create a Parent.. This worked. The parent.getId() gives me the Id. > 2) While creating a child, I want to attach the child to parent, so I > tried several variations such as this: > > String parentId = parent.getId().toString(); > child.setParent(KeyFactory.stringToKey(parentd)); > > This is NOT working. What's the best way to do this? > > 3) Also, I need to put the key of child into Parent. As per, Max Ross' > presentation at Google I/O this doesn't work in the same transaction. Has > that issue been fixed? > > Is there any tutorial available that shows this? Any help in this regard > will be greatly appreciated. > > Thanks. > > - Ajay > > > --~--~---------~--~----~------------~-------~--~----~ You received this message because you are subscribed to the Google Groups "Google App Engine" group. To post to this group, send email to google-appengine@googlegroups.com To unsubscribe from this group, send email to google-appengine+unsubscr...@googlegroups.com For more options, visit this group at http://groups.google.com/group/google-appengine?hl=en -~----------~----~----~----~------~----~------~--~---
