[Zope] Extreme DTML fun: How to copy a dtml-document while saving itsproperties

[Jim Washington]

Hi, Fiore,

> Hi,
> 
> this is my code for copying a dtml document found in a ZClass product folder/
> subfolder to an instance folder of my choice, this is done inside a folder
> creation routine.
> 
>  <dtml-in "defaultblocks.objectIds( 'DTML Document' )">
>   <dtml-let si=sequence-item>
>    <dtml-with newRoot>
>      <dtml-call "manage_addDTMLDocument( si, '', defaultblocks[ si ] )">
>      <dtml-in "defaultblocks[si].propertyIds()">
>         <dtml-if "not _['sequence-item']=='title'">
>         <dtml-call "newRoot[si].manage_addProperty(
>                         _['sequence-item'],
>                         defaultblocks[si].getProperty(_['sequence-item']),
>                         defaultblocks[si].getPropertyType(_['sequence-item'])
>                         )">
>         </dtml-if>
>      </dtml-in>
>    </dtml-with>
>   </dtml-let>
>  </dtml-in>
> 
> But a problem occurs when a property is of type "lines", in that case the
> source value for ex.
> 
> Test
> -
> Test1
> Test2
> Test3
> 
> get translated in the destination document as aproperty of type
> lines but with value
> 
> ['Test', '-', 'Test1','Test2','Test3']
> 
> so i can't iterate over it with dtml-in tag.
> 
> I guess a solution could be to reparse the string in a tuple object for example
> with an eval (I didn't find that in the zope namespace)
> 
> Any idea?

If you are really getting a string back that looks like that, you can
make a sequence of it by the following expression:

"_.string.split(thestring[1,-1],',')"

This takes everything but the first and last elements of the string,
getting rid of [ and ], then splits it into a list by the commas.

But you have to get rid of the single quotes beforehand with

"_.string.replace(thestring, _.chr(39), '')", chr(39) being "'", though
you can't say that.

So the entire expression would be

"_.string.split(_.string.replace(thestring, _.chr(39), '')[1,-1],',')"

hth

-- Jim Washington