[Zope-dev] Re: [Zope3-dev] Re: RFC: TALES adapters and TAL/Tales variable namespaces

Jim Fulton jim at zope.com
Tue Jun 1 16:04:03 EDT 2004


Chris Withers wrote:
> Jim Fulton wrote:
> 
>> Yup. We implemented:
>>
>>   ob/adapter:name
> 
> 
> ...which to me says:
> 
> "take adapter, apply to it object with name as a parameter"

That's close to the meaning of Even Simpson's Zope 2 ':' extension.
Which is why we don't want to use this syntax for adapters.

> ...what I'd like it to say would give meaning to:
> 
> my_content_object/zapi:title
> 
> ...meaning apply the title adapter from the zapi package to 
> my_content_object, which was where I left things last time I came close 
> to understanding Zoppe 3.

Well, what we did in bristol, enabled:

   my_content_object/zope:title

Which really gets a special adapter named "zope"
which exposes zapi-like functionality for ZPT.

> What's the equivalent to that in today's Zope 3 land?

What I described still works.  But we want to pick a different
syntax, like:

   my_content_object#zope/title

>> which is equivalent to:
>>
>>   ob/adapter:/name
>>
>> and, in fact, you can say just:
>>
>>   ob/adapter:
> 
> 
> I'm afraid neither of those means anything to me so your equivalency 
> makes so sense :-S

right, which is why we want to pick a different syntax.

>> Steve pointed out some problems with the syntax, which
>> the above examples should make obvious.
> 
> 
> Hurm :-S Don't suppose you have a use for that off hand?

Use for what?

Jim

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