Re: dynamic reference

Monday, May 18, 2009, 3:13:58 PM, a.reiter wrote:

> Hi Daniel,
>
> thanks a lot for the answer
>
> the thing is a bit mor complicated, i try to explain... :-)
>
> i have this xml structure
>
>
> <book title="Test" author="einstein" number="4711" />
>
>
>
> i need to access the attributes, the problem is, the attributes are
> very dynamic, so i don't know the names
> i cann access the title of the book by doing: ${book.@title}
>
> BUT the name of the attribute, here "title" is unknown
> what i have is a separate list, where the names of attributes are stored, called "attr"
>
> now i want to iterate over all velues of attributes defined in that list
> is that possible?
>
> should look like that, but this does not work
>
> <#list attr as a>
>   ${book.@[a][0]!"undefined"}
> </#list>
>
> i hope, the question is clear

I guess... assuming you are using our XML-wrapper it should be:

 <#list attr as a>
   ${book['@' + a][0]!"undefined"}
 </#list>

Also note that the attributes can be listed as <#list book.@@ as a >.

> regards
> andre
>
>
>
> Daniel Dekany wrote:
>> Monday, May 18, 2009, 1:40:46 PM, a.reiter wrote:
>> 
>>> Hello everybody
>>> I'm new to Freemarker, but already impressed of the features and performance
>>>
>>> now I have a simple question:
>>>
>>> in my model there two variables:
>>>
>>> foo="bar"
>>> bar="what ever"
>>>
>>> the problem is, that the model is dynamically, so my template does
>>> not know, that there is a variable "bar", only "foo" variable is well known.
>>>
>>> so how can i get the contant of the unknown "bar" variable? is it possibla at all?
>> 
>> Do the foo variable hold the variable name of the unknown variable?
>> Then:
>> 
>>   .data_model[foo]
>> 
>>> best regards
>>> andre
>> 
>
>
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-- 
Best regards,
 Daniel Dekany


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Crystal Reports - New Free Runtime and 30 Day Trial
Check out the new simplified licensing option that enables 
unlimited royalty-free distribution of the report engine 
for externally facing server and web deployment. 
http://p.sf.net/sfu/businessobjects