It's not very clear how exactly are you executing this wiki content with Velocity in it ? Document#getRenderedContent call from Groovy ? On Fri, Aug 1, 2014 at 3:16 PM, Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr> wrote: -- Thomas Mortagne

Yes, my scheduler can contain:  xcontext.put("DoCleanup", "true")   xwiki.getDocument("SandboxTemplate.ReinitSandboxMacro").getRenderedContent() or this   xcontext.put("source", "SpaceTemplate")   xcontext.put("DoCleanup", "true")   xwiki.getDocument("SandboxTemplate.ReinitSandboxMacro").getRenderedContent() or   xcontext.put("source", "SpaceTemplate")   xcontext.put("target", "SpaceToDeleteAndOverwrite")   xcontext.put("DoCleanup", "true")   xwiki.getDocument("SandboxTemplate.ReinitSandboxMacro").getRenderedContent() And my SandboxTemplate.ReinitSandboxMacro contain this velocity scipt: #if ($request.get('source') != $null)   #set ($Source = "$request.get('source')") #else   #set ($Source =  "SandboxTemplate") #end #if ($request.get('target') != $null)   #set ($Target = "$request.get('target')") #else  #set ($Target =  "Sandbox") #end #if ($request.confirm == 'true' || $xcontext.get("docleanup") == 'true') =>My script is launch This test doesn't work #if (xcontext.get("source") != $null)   #set ($Source = "xcontext.get("source")") #else   #set ($Source =  "SandboxTemplate") #end To resume: I'm looking for a test to know if a xcontext.get("parameter") exist or not (in a velocity script) ________________________________ De : Thomas Mortagne <thomas.mortagne(a)xwiki.com> À : Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr>fr>; XWiki Users <users(a)xwiki.org> Envoyé le : Vendredi 1 août 2014 15h28 Objet : Re: [xwiki-users] How to check $xcontext.get(xxxx) is empty? It's not very clear how exactly are you executing this wiki content with Velocity in it ? Document#getRenderedContent call from Groovy ? On Fri, Aug 1, 2014 at 3:16 PM, Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr> wrote: -- Thomas Mortagne

So you want to differenciate between a property set to null and a property that does not exist ? If your issue is that the document may not have PR then you can't use custom properties in Contex to passe informations since there won't be any way to access it. Another way that should do it is to set properties in script context using something like: services.component.getInstance(org.xwiki.script.ScriptContextManager.class).setAttribute("DoCleanup", true, javax.script.ScriptContext.ENGINE_SCOPE); and then access it in Velocity using: $DoCleanup On Fri, Aug 1, 2014 at 3:46 PM, Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr> wrote: -- Thomas Mortagne

(just because I see that syntax issue): On 08/01/2014 03:42 PM, Pascal BASTIEN wrote: Thats because $null is not the Java null, but "something undefined" A few options to check for null are given here: http://wiki.apache.org/velocity/CheckingForNull (however XWiki does not have that $null-tool installed and the other stuff mentioned from Approach 4 down, so you might try "Approach 3" there) (and there a few '$' in front of xcontext missing ;) Clemens

By the way, realizing something, if your objective is to call a macro from velocity to "reinitialize a sandbox", with passing parameters, why don't you just make it a velocity macro ??? In your SandboxTemplate.ReinitSandboxMacro : #macro (reinitSandbox $source $target $doCleanup) ## ... your macro code ... #end And in your scheduler script: {{include reference="SandboxTemplate.ReinitSandboxMacro"/}} ... #reinitSandbox "space1" "space2" "true" You could even make it a wiki macro [1] ... [1] - http://platform.xwiki.org/xwiki/bin/view/DevGuide/WikiMacroTutorial 2014-08-01 16:30 GMT+02:00 Jeremie BOUSQUET <jeremie.bousquet(a)gmail.com>om>:

Here there are: http://extensions.xwiki.org/xwiki/bin/view/Extension/Reinit_Sandbox That's work well now :-) (to manipulate with caution) ________________________________ De : Pascal BASTIEN <pbasnews-xwiki(a)yahoo.fr> À : XWiki Users <users(a)xwiki.org> Envoyé le : Vendredi 1 août 2014 17h08 Objet : Re: [xwiki-users] How to check $xcontext.get(xxxx) is empty? Thxs to all, but I try to explain more clairely :-) From groovy I pass (or not) some parameter at my velocity script and in velocity I simply want to check if my parameter exist or not. For the moment, i manage to writing this dirty code: In scheduler: xcontext.put("source", "SandboxTemplate") xcontext.put("target", "Sandbox") xcontext.put("DoCleanup", "true") xwiki.getDocument("SandboxTemplate.ReinitSandboxMacro").getRenderedContent() In my SandboxTemplate.ReinitSandboxMacro page: ##Script seem to be launch by scheduler then I use Source and Target from groovy script in scheduler #if ($xcontext.get("DoCleanup") == 'true')     #set ($Source = $xcontext.get("source"))     ##set ($Target = $xcontext.get("target")) #else   ##Script is launch manally from this page then I use default value of 'source' and 'target' URL parameter doesn't exist (and/or is null)   #if ($request.get('source') != $null)     #set ($Source = "$request.get('source')")   #else     #set ($Source =  "SandboxTemplate")   #end   #if ($request.get('target') != $null)     #set ($Target = "$request.get('target')")   #else     #set ($Target =  "Sandbox")   #end #end ##Launch the reinit #if ($request.DoCleanup == 'true' || $xcontext.get("DoCleanup") == 'true')  [[Return>>ReinitSandboxMacro||queryString="source=$Source&target=$Target"]]   #if ($request.debug == 'true')     {{info}}**Debug mode activated: no change made.**{{/info}} NB:  - #if ("$!xcontext.get('target')" != "") doesn't work - I can't include my page in scheduler because it is in groovy syntax. - I don't want doing a xwiki macro because the code is to dangerous (delete space) - I will try services.component.getInstance solution ________________________________ _______________________________________________ users mailing list users(a)xwiki.org http://lists.xwiki.org/mailman/listinfo/users