[Zope] Help in chaining calls to different method types

[Dieter Maurer]

roy@anoobe.com writes:
 > Could someone help me (relative Zope newbie) with understanding how I 
 > can chain method calls, with a mixed bag (i.e: py scripts, dtml methods
 > and dtml documents"). I find that the following calling chains fail.
 > 
 >   DTML_meth -> DTML_meth -> Python_Script
 >   DTML_doc -> DTML_meth -> Python_Script
 > 
 > For example:
 > 
 > x_py: 
 >   Python script
 >   takes 1 parameter (p1)
 >   URL works standalone (http://localhost:9673/Test/x_py?p1=23)
 > 
 > meth_1: 
 >   DTML method
 >   takes 1 parameter (p1) and passes it to x_py
 >   body is: <dtml-var expr="x_py(p1=p1)">
 >   URL works standalone (http://localhost:9673/Test/meth_1?p1=44)
 >  
 > meth_2:
 >   DTML method
 >   takes no parameters
 >   body is: <dtml-var expr="meth_1(p1=66)">
 >   URL fails (http://localhost:9673/Test/meth_2)
 >   I get the following message:
 >     Zope Error
 >     Zope has encountered an error while publishing this resource. 
 >     Error Type: NameError
 >     Error Value: global name 'x_py' is not defined
Please read the "Calling DTML objects" in

  <http://www.dieter.handshake.de/pyprojects/zope/book/chap3.html>

It will tell you what goes wrong, why and how to do it right.


Dieter