[xwiki-users] access rights puzzles

I'm having some strange issues with access rights on http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/ Issue 1 ====== I configured the space to permit view for unauthorized users. Yet when loggen out I get: Error number 4001 in 4: Error while parsing velocity page Cases.WebHome Wrapped Exception: Failed to evaluate content with id <http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/>Web Home<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/> the root exception seems to be: org.apache.velocity.exception.MethodInvocationException: Invocation of method 'formatDate' in class com.xpn.xwiki.api.XWiki threw exception java.lang.NullPointerException @ Cases.WebHome74,17? When logged in, the page displays fine: Existing Case Studies Name[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Owner[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Created[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Modified[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> By[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Summary[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Status[image: ↓]<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/#> Woodforthetrees<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view… Steven Warburton<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki… 15 May 2008 16 May 2008 Yishay Mor <http://localhost/xwiki/bin/view/XWiki/yish> seed Virtual World Communications<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/… Jim Hensman<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/J… 15 May 2008 15 May 2008 Jim Hensman<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/J… seed Team Communications<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/… john gray<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/John… 14 May 2008 14 May 2008 john gray<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/John… What goes in here? seed test <http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/Cases/test> Yishay Mor (local)<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/Yi… 16 May 2008 16 May 2008 Yishay Mor (local)<http://patternlanguagenetwork.myxwiki.org/xwiki/bin/view/XWiki/Yi… The troublesome code is probably this: <td> $xwiki.formatDate($caseDoc.getCreationDate(),"dd MMM yyyy") </td> <td> $xwiki.formatDate($caseDoc.getDate(),"dd MMM yyyy") </td> issue 2 ===== I use this code to create new pages in the space: #if ($xwiki.hasAccessLevel("edit")) </p><form action="" id="newdoc" method="post"> <div> <input name="parent" value="XWiki.CaseClass" type="hidden"> <input name="template" value="Cases.CaseClassTemplate" type="hidden"> <input name="sheet" value="1" type="hidden"> <input name="webname" value="Cases" size="8" type="hidden"> Name: <input name="name" value="Name of your case study" type="text" size="20"> <input value="Create" onclick='if (updateName(this.form.name)) {this.form.action="../../inline/" + this.form.webname.value + "/" + this.form.name.value; this.form.submit(); }' type="button"> </div> </form><p> #else sorry, you have to log in to enter a case study. #end It works fine, users can create new pages, but then they can't edit them! In my desperation, I added this to the class sheet: ## set rights to allow creator and contributors to edit ## THIS DOESN'T WORK: CHICKEN & EGG PROBLEM => TURNED OFF SAVE #macro(allowEdit $user) #set ($rights = $doc.getObject("XWiki.XWikiRights", true)) #set ($result = $rights.set("levels", "edit")) #set ($result = $rights.set("users", $user)) #set ($result = $rights.set("allow", 1)) ## $doc.save() #end #allowEdit($doc.getCreator()) #foreach($contributor in $doc.getObject("Cases.CaseClass").contributors) #allowEdit($contributor) #end but as you can see in the comment, it fails because if a user doesn't have edit rights to begin with, save fails. -- ___________________________ Yishay Mor, Researcher, London Knowledge Lab http://www.lkl.ac.uk/people/mor.html http://yishaym.wordpress.com https://www.linkedin.com/in/yishaymor http://www.google.com/calendar/embed?src=yishaym%40gmail.com +44-20-78378888 x5737