Hi, In some recent messages, there were people talking about creating objects from within External Methods. In there, after the createInObjectManager call, they call a _setObject method (or something like that). Unfortunately, we can't do that from DTML because it starts with _. Maybe there is some piece missing that is need to create these objects wherever you wish via DTML? Not to confuse the issue, but I've got a slightly different situation and a slightly different problem (but no luck, either :) I have two ZClasses: KMArticleStore and KMArticle. There is a method within KMArticleStore that I would like to use to create new KMArticles. I've tried a few variations to get this to work. Brian (Lloyd)'s suggestion <dtml-call "Control_Panel.Products.Kendermedia.KMArticle_add(REQUEST)"> Yields a NameError (KMArticle), here: Object: KMArticle.createInObjectManager(REQUEST['id'], REQUEST) I did, at one point, manage to get the article added to the Products part of the control panel :) (I think by calling Control_Panel.Products.Kendermedia.KMArticle.createInObjectManager directly) Kevin --- Brian Hooper <brian@garage.co.jp> wrote:

Hi, thanks for the response!

Brian Lloyd <Brian@digicool.com> wrote:

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Hi Zopistas -

This is probably a really easy one, but I was wondering if anyone knows how to create an instance of one ZClass inside the constructor of a different ZClass. To illustrate with an example:

I have defined two ZClasses, a ProjectManager and a GuestBook (I reimplemented the old Guestbook example product using ZClasses) as separate Products (since they are not really intrinsically related). I want to use the GuestBook in the ProjectManager, but I can't figure out how to create the GuestBook in the ProjectManager's constructor.

I want to do something like

<!--#call "GuestBook_add(id)"-->

in the ProjectManager_add method; however, since the other Product's names don't seem to be defined in the namespace of ProjectManager_add, this doesn't work.

Can anyone please tell me the magical solution to this problem?

--Brian Hooper

This is a little ugly, but it should work (untested). Let me know!

<!--#call

"Control_Panel.Products.Guestbook.Guestbook_add(id)"-->

I tried this (or rather, something like it - sharp observers may have noticed that I screwed up the question a little; since GuestBook_add is a DTML Method, it should probably be called <!--#call "GuestBook_add(REQUEST)"--> after resetting the id in REQUEST to whatever I want the new object id to be):

<!--#call "REQUEST.set(id, 'messages')"--> <!--#call

"Control_Panel.Products.GuestBook.GuestBook_add(REQUEST)"-->

Puzzlingly (at first), there was no error, but also the 'messages' GuestBook did not appear in my newly created ProjectManager instance. Apparently, the GuestBook instance is being created but instead of being contained in the ProjectManager instance, it is simply returned inside the ProjectManager_add constructor page. When I remove the redirect at the end of the ProjectManager constructor and <!--#var--> instead of <!--#call--> the above DTML statements, I get a

<GuestBook instance at 80f12e0>

in the ProjectManager_add page.

I guess this has something to do with how createInObjectManager works; however, I'm still not able to get my noodle around what's going on there (turns my brain to spaghetti). Is there any way of skirting around this problem? (not the brain spaghetti problem, the instance in an instance problem)

--Brian

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