I just happen to be at the same stage you are, and I ran into the exact same problem.
I used your syntax and also tried using the syntax: var newCountry: Country = new Country(); newCountry.code = "CAN" newCountry.description = "Great White North"; countries.addItem(newCountry); And ran into the same problem. I too use hibernate so I compared my app to the crm app in the fds samples folder - an app that I hibernate / mySql enabled a while ago with no problems. In the sample crm app there's a similiar function for adding employees. That helped me figure it out. Turns out that by default the hibernate tools generated my country.hbm.xml with <generator class="assigned" /> Meanwhile the employee.hbm.xml file in the crm sample is configured with <generator class="native" /> I modified my country.hbm.xml and the problem went away. Vic --- In [email protected], "Benno Kittelmann" <[EMAIL PROTECTED]> wrote: > > Hello all, > > I have the following (simplified) setup: An ArrayCollection is bound > to the dataProvider attribute of a DataGrid. The values of the > ArrayCollection are loaded by a DataService during startup of the > application. Additionally, there is a form which is used to create new > managed objects. Whenever the form is submitted, a new object is > created, and after a call to to createItem() it is persisted on the > server, and some seconds later displayed in the DataGrid. So far so > good. > > Here's the problem though: If I try to directly add another object, I > get the error message "Item with id '0' already exists'. And the > object does not display in the DataGrid. > > The object I'm trying to add/persist looks like this: > > package myPackage > { > [Managed] > [RemoteClass(alias="myPackage.Item")] > public class Item { > public var id:int; > public var name:String = ""; > } > } > > and I'm trying to persist it like this: > > var newItem:Item = new Item(); > newItem.name = "foobar"; > dataservice.createItem(newItem); > > datagrid.dataProvider.refresh(); > Alert.show(String(newItem.id)); > > > The alert is showing me '0' as the newly generated id - which I > suppose is to be expected, since the order of method calls is not > synchronous. Anyway, when I monitor what's happening on the server, I > see that a new Java object is successfully created and persisted to > the database, and it gets the ID value set from the ORM tool > (Hibernate). I suspected that then the dataservice notifies the Flash > client that a new object exists, and that it should display it. My > assumption was that the managed Item object would then have the newly > generated ID instead of the default '0' value. > > I have the feeling I'm probably not doing things in the correct order > or missing a crucial piece of information. How is one supposed to > persist a managed object via createItem() and put that into a > DataGrid? Does any article exist that showcases this situation? I've > perused the Flex docs extensively, but did not find a good example > that helped me resolve my problem. > > Thanks in advance, > Benno Kittelmann > -- Flexcoders Mailing List FAQ: http://groups.yahoo.com/group/flexcoders/files/flexcodersFAQ.txt Search Archives: http://www.mail-archive.com/flexcoders%40yahoogroups.com Yahoo! Groups Links <*> To visit your group on the web, go to: http://groups.yahoo.com/group/flexcoders/ <*> Your email settings: Individual Email | Traditional <*> To change settings online go to: http://groups.yahoo.com/group/flexcoders/join (Yahoo! ID required) <*> To change settings via email: mailto:[EMAIL PROTECTED] mailto:[EMAIL PROTECTED] <*> To unsubscribe from this group, send an email to: [EMAIL PROTECTED] <*> Your use of Yahoo! Groups is subject to: http://docs.yahoo.com/info/terms/
