[Zope] How to disply a property of an object created with a Z class

Sun, 26 Jan 2003 23:12:25 -0000

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I used a Z class to write a basic news pinup board for my site.
Everything is working fine but I reached a point where I am trying to
publish only the heading and a summary of the message while asking users
to click on a link to view the body of the message

I have created a newster class which is my news server instance. The
newster class contains the messages class which is the blueprint for
each of the messages that I am going to add. Each message is an object
in the newster directory.

The message objects each have a number of properties such as expired,
title, id, summary and body.

I have two methods:

1. index_html that prints the title and summary of each message instance
one after the other on a long page.

2. display_body that will print the body of the message in a new window.

The problem:

I pass the id of the message whose body must be displayed in a url like:
display_body?document_id=<id>

Here is what I believe the basic code of the display_body method should
be:

<dtml-var standard_html_header>

<dtml-with REQUEST>

<dtml-with expr="document_id">

<dtml-var body>

</dtml-with>

</dtml-with>

<dtml-var standard_html_footer>

I can print the document_id as a dtml-var but somehow I cannot get zope
to understand it is the name of an object whose body property I want to
display.

But, somehow, zope does not push the properties of the document_id
(which it received through the web) on top of the namespace and
therefore it believes that there is no such thing as a body property.

Any help will be greatly appreciated. This is driving me nuts.

Thanks,

Pieter

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<div class=3DSection1>

I used a Z class to write a basic news pinup =
board
for my site. Everything is working fine but I reached a point where I am =
trying
to publish only the heading and a summary of the message while asking =
users to
click on a link to view the body of the message

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

I have created a newster class which is my =
news
server instance. The newster class contains the messages class which is =
the
blueprint for each of the messages that I am going to add. Each message =
is an
object in the newster directory.

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>The message objects each have a number of =
properties
such as expired, title, id, summary and body.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>I have two methods:</span></font></p>

1. index_html that prints the title and =
summary of
each message instance one after the other on a long =
page.

2. display_body that will print the body of =
the
message in a new window.

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>The problem:</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>I pass the id of the message whose body must =
be
displayed in a url like: =
display_body?document_id=3D&lt;id&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Here is what I believe the basic code of the =
display_body
method should be:</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;dtml-var =
standard_html_header&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;dtml-with REQUEST&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;dtml-with =
expr=3D&quot;document_id&quot;&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;dtml-var body&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;/dtml-with&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;/dtml-with&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&lt;dtml-var =
standard_html_footer&gt;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>I can print the document_id as a dtml-var but =
somehow
I cannot get zope to understand it is the name of an object whose body =
property
I want to display.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>But, somehow, zope does not push the =
properties of
the document_id (which it received through the web) on top of the =
namespace and
therefore it believes that there is no such thing as a body =
property.</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>&nbsp;</span></font></p>

Any help will be greatly appreciated. This is =
driving
me nuts.

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Thanks,</span></font></p>

<p class=3DMsoNormal><font size=3D2 face=3DArial><span lang=3DEN-GB =
style=3D'font-size:
10.0pt;font-family:Arial'>Pieter</span></font></p>

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