Re: [Zope] get property of type 'list'

2001-01-12 Thread Jim Washington 

Hi, Andrei

I think I have it figured out.  I just submitted something similar to
the Collector about an analogous problem I have been having with 'lines'
properties.

When you create your tokens property, you should make its value a
string, like:

'1 2 3'

not a list: [1, 2, 3]

If your data is in a list and you want to use that list as tokens, you
need to join the list into a string first:

mylist = ['1', '2', '3']
fortokens = string.join(mylist,' ')

That's the python, but you can do it in DTML using _.string.join(.  Be
careful to convert your integers to strings first.

What's happening to you is that the string representation of the list,
"[1, 2, 3]" is getting stored verbatim as your tokens property, and
ZPublisher/Converters.py is then splitting it on the spaces when you ask
for it. Which is how you get that weird '[1,' '2,' '3]'.

-- Jim Washington

Andrei Belitski wrote:
 
 Hi!
 I add a list property to a DTML document of type 'tokens' (e.g. '[1, 2,
 3]') wenn i try to retrieve it with _.getitem i get '[1,' '2,' '3]'
 instead of '1' '2' '3'
 How can I get Zope to interpret my property like a list not a string or
 whatever else?
 Thank you in advance!
 
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-- 

Jim Washington
Center for Assessment, Evaluation and Educational Programming
Department of Teaching and Learning, Virginia Tech

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RE: [Zope] get property of type 'list'

2001-01-10 Thread Max Møller Rasmussen 

From: Andrei Belitski [mailto:[EMAIL PROTECTED]]

I add a list property to a DTML document of type 'tokens' (e.g. '[1, 2,
3]') wenn i try to retrieve it with _.getitem i get '[1,' '2,' '3]'
instead of '1' '2' '3'

How can I get Zope to interpret my property like a list not a string or
whatever else?

Actually it IS treating it as a list:

dtml-var "tokens[0]" Should return '1'

This should list each item:

dtml-in tokens
dtml-var sequence-itembr
/dtml-in


Regards Max M

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Re: [Zope] get property of type 'list'

2001-01-10 Thread Dieter Maurer 

Andrei Belitski writes:
  I add a list property to a DTML document of type 'tokens' (e.g. '[1, 2,
  3]') wenn i try to retrieve it with _.getitem i get '[1,' '2,' '3]'
  instead of '1' '2' '3'
Are you sure, it was '[1,' '2,' '3]' and not ['1', '2', '3', '4']?

If it were, it would be really strange, unbelievable.

['1', '2', '3', '4'] would be normal, when you use
a list (it definitely is one!) in e.g.:

  dtml-var "_.getitem('toks')"

as a list (of cause) can not be part of a generated HTML page.
It must be converted into a string. And the above
it the string representation of a list.

To get the representation, you seem to favour (though
I do not understand why), you could use:

  dtml-var "_.str(_.getitem('toks'))[1:-1]"

This make the string conversion explicitly ("_.str")
and then keeps the slice "[1:-1]" which means
everything beside the first and last character,
i.e. you chop the '[]'.


Dieter

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