At 12:22 AM 1/6/2003 +0100, you wrote:

beno schrieb:

...

Hi; Here's my code. I know there are all sorts of errors. But I'm not sure where in the documentation to find the corrections (other than somewhere in the Zope Book). Your help would be appreciated.

<dtml-let lang="REQUEST.get('HTTP_ACCEPT_LANGUAGE')"> <dtml-in expr="context.objectsInTheFolder"> <dtml-if expr="&dtml-id==&dtml-lang"> <dtml-let approved="&dtml-lang"> <dtml-else> <dtml-let approved="en-us"> </dtml-if> </dtml-in> </dtml-let>

First of all, terminate all &dtml entities by a semicolon.

Second, dtml-let needs a closing tag. This tag can't be outside of the DTML hierarchy the opening tag is in, which means that if you define a variable inside of a dtml-if, you have to close it inside, too, and the value is lost for further use. Shortly: this won't work, try another way.

Third, IMHO it doesn't make sense to extract values from variables inside a Python expression per DTML entities, try "id == lang" in line 3, and correct line 4 accordingly (your DTML namespace will be correctly looked up inside the expressions, you don't need the &dtml-...; part).

Okay, well here's what I've got right now... <dtml-let lang="REQUEST.get('HTTP_ACCEPT_LANGUAGE')"> <dtml-in objectsInTheFolder> <dtml-if id=="&dtml-lang;"> <dtml-let approved="&dtml-lang;"> <dtml-var approved> </dtml-let> <dtml-else> <dtml-let approved="en"> <dtml-var approved> </dtml-let> </dtml-if> </dtml-in> </dtml-let> If nothing else needs work, clearly line #2 does. How do I call the objects in the folder? Also, strangely, whenever I try to save these changes in my Zope it errors out with, of all things, HTTP 500. I tried to use a <dtml-set> tag, which is a product I've installed, but it appears not to work with 2.6. Without that tag, of course, I can't keep the variable from going out-of-scope, so I have to work my magic within those nested <dtml-let> tags, which I can do, although I (obviously) have to do it twice, which is a bit of a kludge.

Point four: would it be possible that this could be better done in a script?

Maybe. But if it can be done cleanly in DTML, that would be better because this is mainly for a product that will hopefully serve as a tutorial for newbies and a short DTML script would be appropriate (I have plenty of short python scripts). How would I rewrite this line for a python script? <dtml-let lang="REQUEST.get('HTTP_ACCEPT_LANGUAGE')"> TIA, beno