[stringtemplate-interest] Fwd: Re: Conditional iterations

[Harald Mueller]

-------- Original-Nachricht --------
Datum: Sun, 24 Oct 2010 18:19:21 +0200
Von: "Harald Mueller" <harald_m_mueller at gmx.de>
An: Ivan Gallo <ivgallo at gmail.com>
Betreff: Re: [stringtemplate-interest] Conditional iterations

There are two possibilities:

* Preferably, you have to create a clone of you model which somehow marks the row (so that you have a boolean property you can use in a standard $if$);

OR

* you use a tricky way to implement an equals operator; I showed how to do this in http://www.antlr.org/pipermail/stringtemplate-interest/2010-March/002637.html - the implementation is in C#; however, the same concept works for Java.

The first method sometimes requires a fundamental shift on what a "model" is: Not something stable created once, but a structure that is sometimes cloned multiple (100s) times to mark some special places so Stringtemplate can work using $if$s or $(indirect macros)$.

Hope this short teaser helps you ...

Regards
Harald

-------- Original-Nachricht --------
> Datum: Sun, 24 Oct 2010 11:04:40 -0500
> Von: Ivan Gallo <ivgallo at gmail.com>
> An: stringtemplate-interest at antlr.org
> Betreff: [stringtemplate-interest] Conditional iterations

> how I can do this in stringtemplate, conditional expression only accepts
> boolean values ?
> 
>  <select id="city" name="city">
>                 <option value=""></option>
>                 <c:forEach var ="row" items="${cities}">
>                     <option value="${row.code}" ${row.code == s.code
> ?'selected':''}>${row.name}</option>
>                 </c:forEach>
>  </select>
> 
> s.code is a value of javabeans
> 
> 
> -- 
> Ivan Gallo P
> SCJP
> cel 3008165846

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