[Zope] Help: dtml-var expr -> DTML method -> ZSQL method

[Mayers, Philip J]

Oops, my bad - REQUEST just contains the CGI/HTTP REQUEST variables, like
form variables, cookies, AUTHENTICATED_USER and so on. '_' consists of
"REQUEST" along with the Zope container hierarchy down to the given method.
So REQUEST is not expected to work. It *is* still a namespace, just not one
that contains the other DTML methods/folder/etc.

Sorry for the confusion!

Regards,
Phil

+----------------------------------+
| Phil Mayers, Network Support     |
| Centre for Computing Services    |
| Imperial College                 |
+----------------------------------+  

-----Original Message-----
From: Andrews, Martin [mailto:mandrews@netgenics.com]
Sent: 12 February 2001 17:10
To: 'Mayers, Philip J'; 'zope@zope.org'
Subject: RE: [Zope] Help: dtml-var expr -> DTML method -> ZSQL method


I was pretty sure the problem was that I was losing context when calling
get_rid() - but for the life of me I cannot figure out how to pass it on -
trying:

     <dtml-var expr="get_rid(_.None, REQUEST)">

still gives me the NameError for next_rid - but the first one works:

     <dtml-var expr="get_rid(_.None, _)">

Anyone care to illuminate me as to why (what am I doing with the call above?

Thanks,
Martin

> -----Original Message-----
> From: Mayers, Philip J [mailto:p.mayers@ic.ac.uk]
> Sent: Monday, February 12, 2001 5:45 AM
> To: 'Martin Andrews'; 'zope@zope.org'
> Subject: RE: [Zope] Help: dtml-var expr -> DTML method -> ZSQL method
> 
> 
> The DTML method call:
> 
>     <dtml-var expr="get_rid()">
> 
> Will call get_rid without a "namespace", so get_rid can't 
> lookup next_rid,
> and therefore it fails. Try this:
> 
>     <dtml-var expr="get_rid(_.None, _)">
> 
> Try the Zope "Help" link from the management interface, go 
> "Zope Help",
> "Zope API", "DTML Method", and lookup the API for __call__:
> 
> __call__(client=None, REQUEST={}, **kw): 
> 
> 
> So, clearly this will work:
> 
>     <dtml-var expr="get_rid(_.None, REQUEST)">
> 
> Namespaces are hard!
> 
> Regards,
> Phil