improvate #evaluate example
---------------------------
Key: VELOCITY-603
URL: https://issues.apache.org/jira/browse/VELOCITY-603
Project: Velocity
Issue Type: Improvement
Components: Documentation
Reporter: Will Glass-Husain
Priority: Minor
Fix For: 1.6
---------- Forwarded message ----------
From: Luan Nguyen <[EMAIL PROTECTED]>
Date: Mon, Oct 22, 2007 at 8:56 PM
Subject: Evaluate Section
To: [email protected]
Hello,In the Evaluate section, there are two different variables: $source1
and $source. How can it display "abc" when $source is never defined?
Evaluate
The *#evaluate* directive can be used to dynamically evaluate VTL. This
allows the template to evaluate a string that is created at render time.
Such a string might be used to internationalize the template or to include
parts of a template from a database.
The example below will display abc.
#set($source1 = "abc")
#set($select = "1")
#set($dynamicsource = "$source$select")
#evaluate($dynamicsource)
---------- Forwarded message ----------
From: Will Glass-Husain <[EMAIL PROTECTED]>
Date: Tue, Oct 23, 2007 at 9:55 AM
Subject: Re: Evaluate Section
To: Velocity Developers List <[email protected]>
That's a good point though. Perhaps the example should use concatenation to be
clearer. The single quotes prevent evaluation.
#set($dynamicsource = '$source' + "$select")
WILL
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