[Zope] Promlem getting the current object in PythonScript

[Jérôme Loisel]

Hi!

I tried asking a question about this yesterday, and failed miserably in 
describing my problem. I apologize for that. Please read on. I have taken 
pains to write a very clear explanation with a code sample and precise data.

My basic question is this: I have code which is called from 
standard_html_footer. When that code was a DTML Method, I used this(). Now 
that this code is a PythonScript, how do I access the same object? "context" 
and "context.this()" do not work reliably. Read more for details.

I have a DTML Method called "adminMenu". That method is called in 
standard_html_footer like so: "<dtml-var adminMenu>". It prints nothing for 
anonymous users... But if the user is authenticated, it prints a 
context-sensitive admin menu.

If the user is viewing a DTML Document to which he has "write 
access", the admin menu prints a "Edit this document" link. There are various 
other options. For many of them, I have to know which object the user is 
viewing. This works fine.

But the "adminMenu" DTML Method soon grew big and cumbersome. Last week, I 
decided to re-write it as a PythonScript.. The code is mostly a port (very 
similar), and is called the same way: "<dtml-var adminMenu>" from the 
standard_html_footer.

Yet I am now having problems getting a hold of the object which the user is 
viewing. Specifically, "context" never seems to refer to DTML Documents. It 
seems to ignore them like it does DTML Methods.

An example: 
I use the following code to get my "debugging" information:
print "      <B>File name:</B> %s<BR>" % (context.getId())
print "      <B>File type:</B> %s<BR>" % (context.meta_type)

With a Folder...
  viewing http://www.levinux.org/ (a Folder)
  <B>File name:</B> levinux<BR>
  <B>File type:</B> Folder<BR>
  So far so good...

With a DTML Document...
  viewing http://www.levinux.org/liens.html (a DTML Document)
  <B>File name:</B> levinux<BR>
  <B>File type:</B> Folder<BR>
  This is not expected behavior.

My tests seem to indicate that, context.getId() and context.meta_type yield 
the same result as context.this().getId() and context.this().meta_type. So I 
am stumped. I am running Zope 2.3.1b2 (binary release, python 1.5.2, 
linux2-x86) on a Mandrake 7.2 system.

Thanks for reading me. I hope you can help. Cheers,

Jérôme Loisel

-- 
Jérôme Loisel, étudiant et webmestre
Lévinux: GNU/Linux pour la communauté
http://www.levinux.org/