On Oct 18, 2010, at 4:23 PM, David Holt wrote:

> 
> On 2010-10-18, at 1:11 PM, David Avendasora wrote:
> 
>> Hi all,
>> 
>> I'm using ERModernD2W and ERXNavigation. I've followed Dave L's example and 
>> setup a NavController instead of putting all the navigation methods in the 
>> session, but even with that my NavController is getting to be huge, with 
>> lots of repeated methods that are identical except for which entity they are 
>> for.
> 
>> 
>> What I'd like to do is create a NavController for each tab. This is simple 
>> enough, and I can easily target the entity-specific nav controller from the 
>> Navigation.plist by setting the action binding to 
>> session.myEntityNavController.action but I'd like to be able to define a nav 
>> controller delegate with a rule and just have the action binding have the 
>> action method name in it.
>> 
>> For example, for tabs that are basically for doing CRUD functions on an 
>> Entity I'd have a GenericEntityNavController superclass that has some basic 
>> stuff in it that all entity-focused tabs will want to be able to do (query, 
>> list, inspect, etc) then subclass it with delegates for each entity that do 
>> entity-specific things. I would create a rule that would define which 
>> controller to use, similar to how I can specify a pageController.
>> 
>> Is this possible? Can the same functionality be achieved in a different way?
> 
> I'd take a closer look at BugTracker Factory class. This is where navigation 
> tab actions get triggered in BugTracker. I think you'll find that the calling 
> of the various methods for page creation is pretty efficient. There are some 
> nice generic methods at the top of the code. It's still large and relatively 
> convoluted to understand, but I'm imagining the resulting code is not quite 
> as large as using a NavigationController style class might get you. You may 
> be able to combine some of your ideas above with the coding style in Factory.

Wow. That looks like it does pretty much what I am trying to do, I think...but 
it makes my brain hurt. It's the D2W/ERNavigation equivalent to saying "Oh, you 
like that addition & subtraction? You should try calculus, it's even more 
powerful."

I think I'll go back to my huge, monolithic NavController for now. Maybe I'll 
work up to multiplication...

Dave
 _______________________________________________
Do not post admin requests to the list. They will be ignored.
Webobjects-dev mailing list      ([email protected])
Help/Unsubscribe/Update your Subscription:
http://lists.apple.com/mailman/options/webobjects-dev/archive%40mail-archive.com

This email sent to [email protected]

Reply via email to