[Zope-dev] Adding a TemporaryFolder inside a factory method of a Zope class

[Marco Bizzarri]

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Dieter Maurer wrote:
| Paolo Bizzarri wrote at 2004-8-10 09:44 +0200:
|
|>...
|
|>from Products.TemporaryFolder.TemporaryFolder import
constructTemporaryFolder
|
|>def manage_addMyFolderCache(container, id, title='')
|>	mfc = MyFolderCache(id, title)
|>	container._setObject(id, mfc)
|
|
| The standard way is:
|
|     destination.manage_addProduct[product_name].constructor(...).

This is part of the problem, but I don't thik is the whole problem.

Please take time to review the example I'm including in this mail. You
can find the TFProduct, which creates a Folderish object, puts a
temporary folder named alfa inside it, and then another folder called
cache inside alfa temporary folder.

Note that in order to create a TFProduct you've to pass the id argument
on the URL...

As you can see, I'm using all manage_addProduct calls. However, when I
review the result from the ZMI (or whatever) you end up with:

tf
~ |
~ +- alfa
~ |
~ +- cache

instead of:

tf
|
+- alfa
~    |
~    +- cache


which is what I wanted.


| When you follow the standard way, you avoid FMEs (Frequently Made Errors)
| such as the above: "mfc" is not acquisition wrapped!

Shame on *me* for doing a FME and posting on the list :).

However, it is also the way to really undestand why things have to be
done that way.

|
|
|>2) how can I do what I want to do in a single transaction?
|
|
| I fear you will need your own MountPoint logic that
| does not depend an preconfigured storages in Zope's configuration
| file.
|

I don't think so. You can add a temporary folder wherever you want in a
Zope installation without any configuration.

Also, I'm using Zope 2.6.4, which has not any configuration for the
storage (no DBTab here).

Thanks for your support.
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