Re: [Zope] Test if an object exists in a folder

1 Aug 2002

      Hi

I want to use dtml.

I tried these to check if content_html exists:

1:   <dtml-if expr="_.has_key('content_html')">
        Action!
     <dtml-else>
        Does not exist
     </dtml-if>

2:   <dtml-in expr="objectValues()">
        <dtml-var getId><br>
        <dtml-if expr="getId() == 'content_html'">
           Action!
        </dtml-if>
     </dtml-in> 

I'm not sure of the syntax of expr in the first example.

The second one works, but it seems a like overkill to me. And how do I
now later that I found it?

The dtml code below is not what I want, because it returns true when a
parent object has "content_html".

On Wed, 2002-07-31 at 15:05, Max M wrote:
...
Hans Sandsdalen wrote:
...
I'm new to zope, and I can't figure out how to check if an object (with
a spesific name) exists in the current folder.
It kind of depends on where you want to check from. dtml, Python Script, 
Python product/external method or what have you.
dtml:
<dtml-if someObj>
    <dtml-var showStuff>
</dtml-if>
Python:
if self.someFolder.has_key('someObj'):
    showStuff()
regards Max M
--
"Sorry I would Really Like To Help More On This Project,
But Am To Busy Doing Paid Work On A Tight Deadline"
    Max M
-- 
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