[Zope] where has the REQUEST-object gone???

[Andy Pahne]

hi,

at the moment we are builduing a database-enabled three-language website. we
have the contents (texts) for the site already in a database. I wrote a
Z-SQL-Method  sql_get_text which takes id_to_get as argument. So, when I
call

  <dtml-in "get_text(id_to_get=xxxx)">
     <dtml-var text_value>
  </dtml-in>

I get the text I was looking for. (Note that this ZSQL-method will return
only one result, because id_to_get is the primary key of the database table
and therefore unique).


I wanted to make things a bit easier for the people who generate the
templates for the site. So I coded a helper-method named get_text which also
takes id_to_get as argument. It holds exactly the code-snippet from above.
By doing so I wanted the HTML-Coders to type

 <dtml-var "get_text(id_to_get=xxxx)">

so that they do not have to worry about the dtml-in-tag. It did not work. I
get an error-message that Zope can not find the ZSQL-method sql_get_text
method. Here is the traceback:

Traceback (innermost last):
  File /usr/local/src/Zope-2.1.6-src/lib/python/ZPublisher/Publish.py, line
214, in publish_module
  File /usr/local/src/Zope-2.1.6-src/lib/python/ZPublisher/Publish.py, line
179, in publish
  File /usr/local/src/Zope-2.1.6-src/lib/python/Zope/__init__.py, line 202,
in zpublisher_exception_hook
    (Object: ElementWithAttributes)
  File /usr/local/src/Zope-2.1.6-src/lib/python/ZPublisher/Publish.py, line
165, in publish
  File /usr/local/src/Zope-2.1.6-src/lib/python/ZPublisher/mapply.py, line
160, in mapply
    (Object: content)
  File /usr/local/src/Zope-2.1.6-src/lib/python/ZPublisher/Publish.py, line
102, in call_object
    (Object: content)
  File /usr/local/src/Zope-2.1.6-src/lib/python/OFS/DTMLMethod.py, line 150,
in __call__
    (Object: content)
  File
/usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: content)
  File /usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_Util.py,
line 335, in eval
    (Object: _['content-ms'])
    (Info: _)
  File &lt;string&gt;, line 0, in ?
  File /usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_Util.py,
line 161, in careful_getitem
  File /usr/local/src/Zope-2.1.6-src/lib/python/OFS/DTMLMethod.py, line 146,
in __call__
    (Object: content-ms)
  File
/usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: content-ms)
  File /usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_Util.py,
line 335, in eval
    (Object: get_text(id_to_get='AXIN_001'))
    (Info: get_text)
  File &lt;string&gt;, line 0, in ?
  File /usr/local/src/Zope-2.1.6-src/lib/python/OFS/DTMLMethod.py, line 146,
in __call__
    (Object: get_text)
  File
/usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_String.py, line
502, in __call__
    (Object: get_text)
  File /usr/local/src/Zope-2.1.6-src/lib/python/DocumentTemplate/DT_With.py,
line 132, in render
    (Object: REQUEST)
KeyError: (see above)



My next idea was:

<dtml-with REQUEST>
  <dtml-in "get_text(id_to_get=xxxx)">
     <dtml-var text_value>
  </dtml-in>
</dtml-with>

I don't know why, but the <dtml-with REQUEST> fixed a lot of errors before,
so I just gave it a try. But then I received and error-message telling me
that I am trying to refference the non-existing object REQUEST.

Now, why doesn't it find my method and why did the REQUEST-object
disappear???

PS: I am doing Zope for half a year now but the namespace-stack is still
mysterious to me.


Andy Pahne, ap@net22.net

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