[Zope] how to pass <dtml-var sequence-item> to an external method from D TML?

[Tino Wildenhain]

Hi,

--On Montag, 6. August 2001 15:51 -0500 "J. Cameron Cooper" <jccooper@rice.edu> wrote:

>>
>>
>> <dtml-in getPropNames>
>>  <dtml-var sequence-item> <dtml-var getPropDescription("<dtml-var
>> sequence-item>")>
>> </dtml-in>
>>
>> Which throws the message:
>>    Invalid attribute name, """, for tag <dtml-var
>> getPropDescription("<dtml-var sequence-item>")>
>>
> DTML can either use things in its namespace or expressions, which are
> little bits of Python. DTML is, unsurprisingly, not parsed in expressions.
>
> You're familiar with things like <dtml-var property>. Expressions are
> like <dtml-var expr="arbitrarystuff()">, which is also exactly like
> <dtml-var "arbitrarystuff()">, but shorter. Those are the only ways to
> call things in DTML. You can't mix and match, lest you drive the parser mad.
>
> In your case, it would be::
>
>    Fool, the properties and thier descriptions are
>    <dtml-in getPropNames>
>       <dtml-var sequence-item> <dtml-var
> "getPropDescription(sequence-item)">

nearly. The problem is the sequence-item.
so "getPropDescription(_['sequence-item'])">  will work.


>    </dtml-in>. Ha!

Eventually ZPT (Zope Page Templates) make more fun here :)

Regards
Tino