[Zope-dev] ZClass nesting/adding desperation

[Jason Spisak]

Rik,


> Technically a python product is probably even better. 
I gave it a try and it went pretty easily.  Which brings me to you next
thought...

>I want to
> be this a web (read ZClasses) only, product so that it is easily
> customizable. Ease of management through the web and flexibilty are the main
> assets of the thing (in contrast to the existing commercial web educational
> packages). Therefore a ZClasses solution is the only way to go I think.
> 

I decided the same here, for the same web-isized reasons.  I am managing
another large project that is currently in use, and nothing beats the
ability to make a few changes via the web and give them exactly the change
they wanted.

> By way of background: this is a product that is to be used for managing an
> educational site (containing a management layer, a design layer and a
> flexible web course layer).

Sounds great and useful.

> There are already a zillion methods and
> properties inside the product and I was reluctant to change it in fear both
> of breaking things and of getting behind in getting the damn thing out. But
> I think that is the only option (sigh).

I just started rebuilding mine yesterday too.  I just figured I'd better
bite it now, rather that wait.  

One thing I found though, is that when you create an instance of a ZClass
progarmatically, and then you wnat to automatically create an instance of a
ZClass inside that inthe same method, you can't use:

<dtml-with "manage_addProduct['MyProduct']">
<dtml-with "ParentClass.createInObjectManager(REQUEST['id'], REQUEST)">
 <dtml-call "propertysheets.myProperties.manage_editProperties(REQUEST)">
  <dtml-with "ContactClass.createInObjectManager(REQUEST['contact'],
REQUEST)">
    <dtml-call "propertysheets.Contact.manage_editProperties(REQUEST)">
    <dtml-call reindex_object>
   </dtml-with>
 <dtml-call reindex_object>
</dtml-with>
</dtml-with>

It will create both instances in the same object, even though you included
a 'with' for the created object!  Bug?  Anyone else think this is a bug?

You have to grab the 'id' from the instance you want to put something
inside, and then create the instance inside of that object like this:

<dtml-with "manage_addProduct['MyProduct']">
<dtml-with "ParentClass.createInObjectManager(REQUEST['id'], REQUEST)">
 <dtml-call "propertysheets.myProperties.manage_editProperties(REQUEST)">
 <dtml-call reindex_object>
</dtml-with>
</dtml-with>
<dtml-with "_[REQUEST['id']]">
<dtml-with "manage_addProduct['ZGL']">
  <dtml-with "BabyClass.createInObjectManager(REQUEST['contact'],
REQUEST)">
   <dtml-call "propertysheets.babyProps.manage_editProperties(REQUEST)">
   <dtml-call reindex_object>
  </dtml-with>
</dtml-with>
</dtml-with>

Pain in my ass.


All my best,


Jason Spisak
CIO
HireTechs.com
6151 West Century Boulevard
Suite 900
Los Angeles, CA 90045
P. 310.665.3444
F. 310.665.3544

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