Hi Joe,
On 2010-11-17, at 9:15 AM, Joe Kramer wrote:
> Hi All,
>
> I'm trying my first D2W app... This should be easy to find, and I'm almost
> embarrassed to ask, but I need to get this working ASAP.
Never be embarrassed to ask anything related to D2W :-) It is a complex topic
that will take you awhile to get your head around. What follows assumes you
are using ModernLook and Wonder.
> I'm wondering how to make it so that you can create new entities from the
> list page.
This may not be quite as easy as you might think. Where do you imagine the
button going? In the list itself or above or below the table?
> What rule should I add to make that happen?
From fastest to hardest:
1. The fastest way to handle it (and it is the one of the ways
ERModernMoviesDemo and BugTracker demonstrate), is to make the action a link in
your ERXNavigationMenu with the code for entity creation in the Navigation
Controller class.
public WOComponent createMovieAction() {
return newObjectForEntityName(MOVIE);
}
public WOComponent newObjectForEntityName(String entityName) {
WOComponent nextPage = null;
try {
EditPageInterface epi =
D2W.factory().editPageForNewObjectWithEntityNamed(entityName, session());
epi.setNextPage(session().context().page());
nextPage = (WOComponent) epi;
} catch (IllegalArgumentException e) {
ErrorPageInterface epf = D2W.factory().errorPage(session());
epf.setMessage(e.toString());
epf.setNextPage(session().context().page());
nextPage = (WOComponent) epf;
}
return nextPage;
}
2. You could create a custom component that would be repeated in the list that
has similar code to that in the Navigation Controller class. You name a
placeholder propertyKey such as "createLink", set it to display a custom
component, then name the custom component. If you choose this route and need
help, please let the list know.
3. You can use ERDActionBar and a delegate for your entity that has a
createAction. This component is supported in the ModernLook list page template.
This took me a couple of days to wrap my head around. To get an idea of what is
involved see this page:
ERDBranchDelegate & ERDControllerButton
http://wiki.objectstyle.org/confluence/display/WO/D2W+Flow+Control
4. You could place your custom component from item 2 above or below your list,
but then you'd need to muck with the list page template to support your custom
component.
I have been using the first option in my D2W apps.
David
>
> Thanks,
>
> Joe Kramer
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