Re: [xwiki-users] Fw : Re: Some interrogations about reference - xwiki-users@xwiki.org

24 Nov 2016

On Thu, Nov 24, 2016 at 2:28 PM, Pascal BASTIEN &lt;pbasnews-xwiki(a)yahoo.fr&gt; wrote:
...

  > >
> > I use this methods,
> hasParent(EntityReference  expectedParent) and i noticed that
 >  I can not use string to set
EntityReference.
 > > Then i must use this before: 
"#set
 >> ($reference =
 > 
$services.model.resolveSpace('xwiki:Encyclopédie'))"
 > and 
"$doc.documentReference.hasParent($reference)"
 >> because
 > 
$doc.documentReference.hasParent('xwiki:Encyclopédie')
 >> doesn't work.
 >> > Am I right? Anyway, I
 >> can understand that.
 >  >> There
 >> is one magic thing about Velocity in
 XWiki that you need to
 > keep
> in mind: it automatically convert
> parameters to the right type (when
> there is
> a  converter provided for that type).
 >  >> For example
 the converter for the type
 >  EntityReference understand the
 >  following
 > syntax: 
[<entitytype>:]<entityreference> (the
 > default entity
> type is "document"
> if you don't provide it) so the  space with
 > reference 
"xwiki:Encyclopédie" will
 >> be the string
 >  "space:xwiki:Encyclopédie"
as in
 > 
hasParent('space:xwiki:Encyclopédie').

 Right :-)  $doc.documentReference.hasParent('space:xwiki:Encyclopédie')
 work well but I don't understand why we must use
 "xwiki" in space name.

 You don't have to use "xwiki".
 "xwiki" is is the wiki in which the
 space is located, if you want the space
 "Encyclopédie" in the current
 wiki then just don't put the wiki as in
 $doc.documentReference.hasParent('space:Encyclopédie').
 Keep it mind
 that we are talking about the
 space reference here, not the space
 name. 
 Heu .... it is not the same?

 Then maybe I found an issue because without "xwiki:"
documentReference.hasParent doesn't work:
 On jetty package 8.4:
 I paste this velocity code: in the page:
http://localhost:8080/xwiki/bin/edit/Paréééént/sousParent/WebHome
 $doc.documentReference.hasParent('space:Paréééént') doesn't work (false)
 $doc.documentReference.hasParent('space:xwiki:Paréééént') work well (true)

 $doc.documentReference.hasParent('space:sousParent') doesn't work (false)
 $doc.documentReference.hasParent('space:xwiki:Paréééént.sousParent') work well
(true) 
Indeed I skipped the fact that hasParent does not resolve the
parameter, it has to be the full reference so indeed you have to
explicitly indicate the wiki or it won't match the document wiki.

Then it depend what is your exact use case:
* if you want to check if the document in in the space "Paréééént" of
the current wiki then you should resolve "Paréééént" and then passe
the resolved reference to hasParent
* if you know you are searching in wiki "xwiki" then it's fine with
hasParent('space:xwiki:Paréééént')

...

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-- 
Thomas Mortagne