Re: [xwiki-users] Custom display for computed field which is list of users

[Marius Dumitru Florea]

On Tue, Jan 26, 2016 at 8:20 PM, Mark Sack 
wrote:

> In 7.4, I've created an app within minutes. One of the properties in the
> app
> is a computed field that returns a list of users that meet some specific
> criteria. If I leave the custom display field for the property blank, the
> contents are displayed as follows:
>
>

> [XWiki.john_smith, XWiki.mark_sack]
>

This must be the result / output of rendering the "script" meta property of
your computed field.


>
> What I would really like to do is display them as hyperlinks to the
> corresponding user page. I thought that I could use a script in the custom
> display field to accomplish this. Reading the following note
>
> http://www.xwiki.org/xwiki/bin/view/FAQ/Which+variables+I+can+use+in+%22Custom+Display%22+field
> there are some variables available. It looks like the $value variable
> should
> contain the computed list of users. But if I put a script like the
> following
> into the custom display field:
>
> {{velocity}}
> $name
> $prefix
> $object
> $type
> $value
> {{/velocity}}
>
> the result is as follows
>
> Usuarios
> Secti.Admin.Setores.Code.SetoresClass_0_
> com.xpn.xwiki.api.Object@543f3466
> view
> $value
>
> The first four values are correct as far as I can tell. But the $value
> variable does not appear to be populated. Does anyone have a suggestion as
> to how I can achieve my desired result with the hyperlinks?
>

$value is null because computed fields don't have a value stored in the
database. Their "value" is dynamic, computed by rendering the "script" meta
property. You have two options:

(1) Render the "script" meta property in the custom displayer and use the
data that has been put in the Velocity context (assuming you're using
Velocity in the "script" value)

{{velocity}}
#set ($script = $object.getxWikiClass().get($name).getValue('script'))
#set ($classSyntax = $xwiki.getDocument($object.documentReference).syntax)
#set ($discard = $doc.getRenderedContent($script, $classSyntax))
## Assuming $users is set in the "script" meta property
$users
{{/velocity}}

(2) Most of the time you don't need to access the "raw" value of a computed
field. If you're only interested in displaying it then it's easier to
generate the hyperlinks directly in the "script" meta property. Which is
equivalent with leaving the "script" meta property empty and putting all
the code in the custom displayer.

Hope this helps,
Marius


>
>
>
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[xwiki-users] Custom display for computed field which is list of users

[Mark Sack]

In 7.4, I've created an app within minutes. One of the properties in the app
is a computed field that returns a list of users that meet some specific
criteria. If I leave the custom display field for the property blank, the
contents are displayed as follows:

[XWiki.john_smith, XWiki.mark_sack]

What I would really like to do is display them as hyperlinks to the
corresponding user page. I thought that I could use a script in the custom
display field to accomplish this. Reading the following note
http://www.xwiki.org/xwiki/bin/view/FAQ/Which+variables+I+can+use+in+%22Custom+Display%22+field
there are some variables available. It looks like the $value variable should
contain the computed list of users. But if I put a script like the following
into the custom display field:

{{velocity}}
$name
$prefix
$object
$type
$value
{{/velocity}}

the result is as follows

Usuarios
Secti.Admin.Setores.Code.SetoresClass_0_
com.xpn.xwiki.api.Object@543f3466
view
$value

The first four values are correct as far as I can tell. But the $value
variable does not appear to be populated. Does anyone have a suggestion as
to how I can achieve my desired result with the hyperlinks?



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Sent from the XWiki- Users mailing list archive at Nabble.com.
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