[Zope-dev] Recursively adding ZClasses (continued)

[Jason Spisak]

Rik Hoekstra writes:

This currently adds recursive ZClasses for me.  All ZClasses are on the top
level of the Product, no nesting:

<cut out untested>

<dtml-with "PermanentJobClass.createInObjectManager(REQUEST['id'],
REQUEST)">
 <dtml-call "propertysheets.PermanentJob.manage_editProperties(REQUEST)">
 <dtml-call "propertysheets.Job.manage_editProperties(REQUEST)">
 <dtml-call "propertysheets.Searchable.manage_editProperties(REQUEST)">
 <dtml-with "manage_addProduct['ZGL']">
  <dtml-with "ServiceClass.createInObjectManager(_.getitem('unique_id', 1),
REQUEST)">
   <dtml-call "propertysheets.Service.manage_changeProperties(REQUEST)">
   <dtml-with "manage_addProduct['ZGL']">
    <dtml-with "ItemClass.createInObjectManager(_.getitem('unique_id', 1),
REQUEST)">
 <dtml-call "propertysheets.Item.manage_changeProperties(
                price=REQUEST['price'],
                description='Placement Fee',
                )">
     <dtml-with "manage_addProduct['ZGL']">
      <dtml-with
"ComponentClass.createInObjectManager(_.getitem('unique_id', 1), REQUEST)">
        </dtml-in default_overrides>
       </dtml-with>
      <dtml-call reindex_object>
      </dtml-with>
     </dtml-with>
     <dtml-call reindex_object>
    </dtml-with>
   </dtml-with>
   <dtml-call reindex_object>
  </dtml-with>
 </dtml-with>
 <dtml-call reindex_object>
</dtml-with>
</dtml-with>
<dtml-call "RESPONSE.redirect(URL1 + '/' + REQUEST['id'])">

</cut out untsted>
I cut a few things out that didn't have to do with the recursing, but you
bet the general picture.

All my best,


> <snip>
> 
> Thanks for replying Kevin, but it won't work ;-( I tried it ALL, and it
> _will_not_work_. The nested ZClasses will apparently solve it (I used it
> elsewhere), but it will get you into trouble in other situations - if
> you want to add an instance of the nested zclass to an existing instance
> of that same nested zclass. I had to change my product before because of
> that.
> 
> > 
> > I'm using nested ZClasses in KM|Net News. Take a look at the AddArticle
> > method. In KMNN, these ZClasses are set up as nested ZClasses, so that may
> > change things somewhat. However, it may still work. Rather than doing
> > manage_addProduct[], you *might* be able to just directly call
> > ZClass_add(_.None, _), because it could be in your acquisition path at the
> > top of the product. In KMNN, that's all I had to do, but in that case the
> > ZClass_add method was located within the ZClass that was to contain it.
> > 
> > That sounded kind of rambling, so I hope it makes sense...
> 
> No matter if you use ZClass_add directly or in  dtml-with. No matter if
> you close the first dtml-with and open another. No matter if you
> redirect to get out of namespace problems (that will _really_ give
> strange errors). Believe me, it was a _very_ frustrating experience (and
> I really wanted to refrain from ranting -just couldn't help myself)
> 
> thanks again for replying
> 
> Rik
> 
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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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