Re: [Zope] Newbie question(s)

2000-11-13 Thread Rik Hoekstra



"Bowyer, Alex" wrote:
> 
> Hi,
> 
> I have what I'm sure is a very simple question about Zope programming style:
> I want to count how many objects are contained in the current container
> object and then do something with that value, but I can't do the bit I need
> to do at the point of reading the count variable because I am in the wrong
> namespace.
> I can't begin a dtml-let because I would need to close dtml-if before
> dtml-let, which is not allowed.
> 
> 
> 
>   
> 
> 
> 
> 

try (untested):











> What is the "accepted" way of passing a value into a different scope? Do I
> have do a REQUEST.set or is there a tidier way?



> Also I think I read somewhere that you can use the object.subobject or
> object.property syntax but I never got that to work, what's the catch?



note that this is a Python expression and the code between quotes has
Python behaviour.
 

> 
> One last thing, I sent a couple of mails to the list about problems I had
> with manage_delObjects. I still haven't got it to work. Since the best way
> to learn Zope is by example, I wonder if anyone could direct me to a sample
> piece of code where a container of some sort deletes one of its children
> subobjects?
> 
>

try (untested):
.manage_delObjects([id1, id2, ..])">


hth

Rik

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RE: [Zope] Newbie question(s)

2000-11-12 Thread Max M

From: Bowyer, Alex

>My query is really more general though, that was just an example,
>I need to know what the generally accepted method is for
>transferring values through the code (i.e between namespaces)

I do believe that our ugly friend REQUEST.set() is the way to go here. I
cannot remember having seen any other way of doing it. I expect that better
days will be here with v.2.3 as we will get Python Methods, or whatever they
are called.

>I am also still looking for example code using manage_delObjects.

Sorry I cannot help there.

Regards
Max M


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Re: [Zope] Newbie question(s)

2000-11-12 Thread Morten W. Petersen

[Alex Bowyer]

| My query is really more general though, that was just an example, I need to
| know what the generally accepted method is for transferring values through
| the code (i.e between namespaces)

Unless I've misunderstood your problem, wouldn't  do the trick?
(See DTML manual for more info).

-Morten

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RE: [Zope] Newbie question(s)

2000-11-12 Thread Bowyer, Alex

> >I want to count how many objects are contained in the 
> current container
> >object and then do something with that value, but I can't do 
> the bit I 
> >need to do at the point of reading the count variable 
> because I am in 
> >the wrong namespace.
> 
> I would try and do it like this (untested):
> 
> 
> 
> Regards
> 
> Max M

Thanks Max, that is certainly useful in this case.

My query is really more general though, that was just an example, I need to
know what the generally accepted method is for transferring values through
the code (i.e between namespaces)

IMHO as far as Zope documentation goes, the thing that is really lacking is
a document introducing people to how to program in Zope, explaining the
overlaps between Python and Zope/DTML and explaining the different syntaxes
for calling variables, methods etc? There are a lot of references on
specific functions, methods etc but no general overview. Maybe the
forthcoming Zope book will address this better.

I am also still looking for example code using manage_delObjects.

Thanks,

Alex

==
Alex Bowyer
IT Contractor, Logica Australasia
Tel: +61 2 9202 8130
Fax: +61 2 9922 7466
E-mail : [EMAIL PROTECTED]
WWW: http://www.logica.com.au/
==

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RE: [Zope] Newbie question(s)

2000-11-12 Thread Max M

From: Bowyer, Alex

>I want to count how many objects are contained in the current container
>object and then do something with that value, but I can't do the bit I 
>need to do at the point of reading the count variable because I am in 
>the wrong namespace.

I would try and do it like this (untested):



Regards

Max M

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