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Posted to dev@velocity.apache.org by "Will Glass-Husain (JIRA)" <de...@velocity.apache.org> on 2007/01/03 05:47:27 UTC
[jira] Created: (VELOCITY-509) Add new directive #evaluate
Add new directive #evaluate
---------------------------
Key: VELOCITY-509
URL: https://issues.apache.org/jira/browse/VELOCITY-509
Project: Velocity
Issue Type: New Feature
Components: Engine
Affects Versions: 1.5 beta2
Reporter: Will Glass-Husain
Priority: Minor
Fix For: 1.6
On a separate issue (VELOCITY-504) we came up with the idea of a new directive, #evaluate. Basically, it would act just like Velocity.evaluate().
Users are always asking for this capability (internal evaluation). Usually we tell them to "use a tool". Instead, we should just put in a simple directive that would evaluate a VTL string using the current context.
Incidentally, this should be the current local context, e.g. if inside a macro or a foreach loop (or worse, both) it should use that context. See VELOCITY-504 for why this is needed.
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Re: [jira] Created: (VELOCITY-509) Add new directive #evaluate
Posted by ap...@recks.org.
No, the #evaluate directive is to be used as it the following example:
#set( $error = $i18n_tool.getMessage("ERROR123") )
#evaluate( $error )## reder by merging with context
It something like the #parse directive, but the content comes
from a string and not a file.
:) Christoph
Geir Magnusson Jr. wrote:
> Do you mean
>
> $foo = "#foreach($a in $b) ...... #end"
>
> ?
>
> If so, why not just do it that way, rather than add a new directive?
>
> geir
>
>
> On Jan 2, 2007, at 11:47 PM, Will Glass-Husain (JIRA) wrote:
>
>> Add new directive #evaluate
>> ---------------------------
>>
>> Key: VELOCITY-509
>> URL: https://issues.apache.org/jira/browse/VELOCITY-509
>> Project: Velocity
>> Issue Type: New Feature
>> Components: Engine
>> Affects Versions: 1.5 beta2
>> Reporter: Will Glass-Husain
>> Priority: Minor
>> Fix For: 1.6
>>
>>
>> On a separate issue (VELOCITY-504) we came up with the idea of a new
>> directive, #evaluate. Basically, it would act just like
>> Velocity.evaluate().
>>
>> Users are always asking for this capability (internal evaluation).
>> Usually we tell them to "use a tool". Instead, we should just put in
>> a simple directive that would evaluate a VTL string using the current
>> context.
>>
>> Incidentally, this should be the current local context, e.g. if inside
>> a macro or a foreach loop (or worse, both) it should use that
>> context. See VELOCITY-504 for why this is needed.
>>
>> --This message is automatically generated by JIRA.
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>> If you think it was sent incorrectly contact one of the
>> administrators: https://issues.apache.org/jira/secure/Administrators.jspa
>> -
>> For more information on JIRA, see: http://www.atlassian.com/software/jira
>>
>>
>>
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>> To unsubscribe, e-mail: dev-unsubscribe@velocity.apache.org
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>
>
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Re: [jira] Created: (VELOCITY-509) Add new directive #evaluate
Posted by "Geir Magnusson Jr." <ge...@pobox.com>.
Do you mean
$foo = "#foreach($a in $b) ...... #end"
?
If so, why not just do it that way, rather than add a new directive?
geir
On Jan 2, 2007, at 11:47 PM, Will Glass-Husain (JIRA) wrote:
> Add new directive #evaluate
> ---------------------------
>
> Key: VELOCITY-509
> URL: https://issues.apache.org/jira/browse/
> VELOCITY-509
> Project: Velocity
> Issue Type: New Feature
> Components: Engine
> Affects Versions: 1.5 beta2
> Reporter: Will Glass-Husain
> Priority: Minor
> Fix For: 1.6
>
>
> On a separate issue (VELOCITY-504) we came up with the idea of a
> new directive, #evaluate. Basically, it would act just like
> Velocity.evaluate().
>
> Users are always asking for this capability (internal evaluation).
> Usually we tell them to "use a tool". Instead, we should just put
> in a simple directive that would evaluate a VTL string using the
> current context.
>
> Incidentally, this should be the current local context, e.g. if
> inside a macro or a foreach loop (or worse, both) it should use
> that context. See VELOCITY-504 for why this is needed.
>
> --
> This message is automatically generated by JIRA.
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> If you think it was sent incorrectly contact one of the
> administrators: https://issues.apache.org/jira/secure/
> Administrators.jspa
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> software/jira
>
>
>
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[jira] Resolved: (VELOCITY-509) Add new directive #evaluate
Posted by "Will Glass-Husain (JIRA)" <de...@velocity.apache.org>.
[ https://issues.apache.org/jira/browse/VELOCITY-509?page=com.atlassian.jira.plugin.system.issuetabpanels:all-tabpanel ]
Will Glass-Husain resolved VELOCITY-509.
----------------------------------------
Resolution: Fixed
Implemented, though still need to write the user docs.
A good example:
#set($vtl = 'learn the alphabet $test1')
#set($test1 = "abc")
#evaluate($vtl)
#set($test1 = "xyz")
#evaluate($vtl)
will display (removing blank lines).
learn the alphabet abc
learn the alphabet xyz
Note that the reference "$vtl" needs single quotes to avoid evaluating $test1 up front.
> Add new directive #evaluate
> ---------------------------
>
> Key: VELOCITY-509
> URL: https://issues.apache.org/jira/browse/VELOCITY-509
> Project: Velocity
> Issue Type: New Feature
> Components: Engine
> Affects Versions: 1.5 beta2
> Reporter: Will Glass-Husain
> Priority: Minor
> Fix For: 1.6
>
>
> On a separate issue (VELOCITY-504) we came up with the idea of a new directive, #evaluate. Basically, it would act just like Velocity.evaluate().
> Users are always asking for this capability (internal evaluation). Usually we tell them to "use a tool". Instead, we should just put in a simple directive that would evaluate a VTL string using the current context.
> Incidentally, this should be the current local context, e.g. if inside a macro or a foreach loop (or worse, both) it should use that context. See VELOCITY-504 for why this is needed.
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