borgo commented on CAY-912:
---------------------------
Here's the solution:
// begin java code
DataObjectList doLookupList = new DataObjectList(dataContext
.performQuery(new SelectQuery(Name.class)));
ObjEntityViewField viewField = dataView.getObjEntityView("ObjEntityViewName").getFieldForObjAttribute(
"description");
// using lookup cache to translate between combobox labels and DataObjects.
viewField.getOwner().getOwner().getLookupCache().cache(viewField, doLookupList );
// You should use the previous code for every lookup fields you want to edit as a combobox in the jtable.
// ... then load the main dataobject list in the tableModel as illustrated in the following example:
// http://cayenne.apache.org/doc20/dataviews-in-action.html
// end java code
(I don't know how cache in dataview works. I hope someone will write a little description)
Regards
Andrea
PS: (I have an enhanced example for dataview that I wish to upload (its based on the 1.2 example but also show how to use combo in jtable as lookup fields. How can I upload it ? Do I need a svn account ?)
> Lookup fields not working on jtable
> -----------------------------------
>
> Key: CAY-912
> URL: https://issues.apache.org/cayenne/browse/CAY-912
> Project: Cayenne
> Issue Type: Bug
> Components: DataViews
> Affects Versions: 2.0 [STABLE]
> Environment: JRE 1.5 + Windows Vista :-(
> Reporter: borgo
> Assignee: Andrus Adamchik
>
> I have tried to use DataViews with the following example code (http://cayenne.apache.org/doc20/dataviews-in-action.html)
> The DataViews documentation It's not clear about use the lookup when editing a JTable.
> Two problem arise:
> 1) Lookups combobox are always empty
> I have look at createTableCellEditor() methods in CellEditors
> Here the method field.getLookupValues() returns always an empty list.
> The cause is getRootOwner().getLookupCache().getCachedValues(lookupField) that returns always an empty list.
> I think it's because I haven't setting any data in the cache.
> But how could I do that ? Does I need to create query in the modeller ?
> Unluckly, documentation and examples doesn't help to understand how cache and lookup fields works.
> 2) So I have tried to use a custom method to load the lookup combobox.
> Here is another problem: when I pickup an element, the cell in the table is not updated and becomes empty.
> there is no way to update the cell choosing elements from the combo.
> I'm very interested in DataViews. My first reason to use Cayenne is the presence of DataViews.
> I'd like to give my contributes to that project but first we need a working base to develop on.
> Regars
> Andrea
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