xwiki-users May 2008

xwiki-users@xwiki.org

79 participants
187 discussions

Re: [xwiki-users] Hashmap vs. Objects (Miscellaneous Questions)

by Kamna Jain

On the same note, I also have the following questions: The answers will help implement whichever option we choose: 1) Is there a limit on the number of members that can belong to a group? 2) How can I create a "global" hashmap (xwiki.getHashMap()) that can be referenced anywhere (any page/space) to retrieve values based on keys? 3) Can I use the $context to add some more values(needed for our project) to the hashtable? 4) I came across the following code snippet int he Wiki editor of the PanelWizard: #set($categoryMap = $xwiki.getHashMap()) #foreach($category in $categoryList) $!categoryMap.put($category, $xwiki.getArrayList()) #end I do not understand the use of "!" in the put() method. what do we achieve with this! Thanks for all help! On 5/5/08, Kamna Jain <kammy.scorpi(a)gmail.com> wrote: > > Hi All, > > This question "might" be related to the thread that has been active in the > past couple of days about the data model. > We have a similar situation with the only difference being that we want > to create lists or collections (like Groups) of certain pre- created > Objects. > The Object as a whole may/will belong to more than one such collection - > which means that if we were to use a Document to link a Collection and its > contents, then every document will have a COPY of the same object and this > is definitely not desirable for good performance - Right? > > So, in that case, we have 2 alternatives: > 1) Use the techiniques used in XWiki to create Groups: each group has > objects of class XWikiGroup with just one field that refers to the Member > name. OR > 2) Use XWiki.getHashmap() and add the Collection and its members to the > hashmap (as the Key and Value resp.) > > The XWiki API indicates that the option #2 must be used in xwiki when > Objects can not be created. > My Question is: > -> Even though I could use option #1 and create objects and add them to > the document that would represent the Collection, can I still use option #2 > because I think that it will provide better performance. Am I right in my > assumption? What should I do? > > Thanks a lot for all help! > > >

16 years, 5 months

[xwiki-users] Hashmap vs. Objects (theoretical question about a data model)

by Kamna Jain

Hi All, This question "might" be related to the thread that has been active in the past couple of days about the data model. We have a similar situation with the only difference being that we want to create lists or collections (like Groups) of certain pre- created Objects. The Object as a whole may/will belong to more than one such collection - which means that if we were to use a Document to link a Collection and its contents, then every document will have a COPY of the same object and this is definitely not desirable for good performance - Right? So, in that case, we have 2 alternatives: 1) Use the techiniques used in XWiki to create Groups: each group has objects of class XWikiGroup with just one field that refers to the Member name. OR 2) Use XWiki.getHashmap() and add the Collection and its members to the hashmap (as the Key and Value resp.) The XWiki API indicates that the option #2 must be used in xwiki when Objects can not be created. My Question is: -> Even though I could use option #1 and create objects and add them to the document that would represent the Collection, can I still use option #2 because I think that it will provide better performance. Am I right in my assumption? What should I do? Thanks a lot for all help!

16 years, 5 months

[xwiki-users] problem in comments.

by Shruti Modi

Hi , I am working on Blogs, I want to add some more links when all the comments for an article is getting displayed. That is the page from where one can add more comments and can view all the previous comments. When I am putting the cursor on comments then it redirects me to some xpage=comments. can anyone help me to know from where the above mentioned page is coming and where I can get the code for it. thanks in advance. Shruti Modi =====-----=====-----===== Notice: The information contained in this e-mail message and/or attachments to it may contain confidential or privileged information. If you are not the intended recipient, any dissemination, use, review, distribution, printing or copying of the information contained in this e-mail message and/or attachments to it are strictly prohibited. If you have received this communication in error, please notify us by reply e-mail or telephone and immediately and permanently delete the message and any attachments. Thank you

16 years, 5 months

[xwiki-users] email show error

by 孙进

Hello When set up the SMTP server and administrator E-Mail address at the xwiki1.3 version, receive the e-mail of all Chinese to show "???" ? Any suggestion? Thanks a lot! sunjin

16 years, 5 months

[xwiki-users] Installation problems

by Anders Andersson

Hello! I wonder if you could help me out a little. I have just reinstalled Xwiki (emptied the tablespace), undeployed the old one and installed xwiki-enterprise-1.3.2 as a standalone war file. I did it by deploying it to the application server. The system runs Oracle Application Server and Oracle Database 10g. I can login (right now I have superadmin enabled), but when I try to create an account, nothing happens. When I check the logs I get: com.xpn.xwiki.XWikiException: Error number 8002 in 8: Cannot create user XWiki.KaninHare Wrapped Exception: Error number 3201 in 3: Exception while saving document XWiki.KaninHare Wrapped Exception: Error number 3212 in 3: Exception while saving property groups of object XWiki.KaninHare Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] 08/05/05 11:06:41 at com.xpn.xwiki.XWiki.createUser(XWiki.java:3156) 08/05/05 11:06:41 at com.xpn.xwiki.XWiki.createUser(XWiki.java:2919) ... Wrapped Exception: com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document XWiki.KaninHare Wrapped Exception: Error number 3212 in 3: Exception while saving property groups of object XWiki.KaninHare Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] 08/05/05 11:06:41 at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:457) 08/05/05 11:06:41 at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:97) ... 08/05/05 11:06:41 Wrapped Exception: com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while saving property groups of object XWiki.KaninHare Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] 08/05/05 11:06:41 at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiProperty(XWikiHibernateStore.java:1151) 08/05/05 11:06:41 at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiCollection(XWikiHibernateStore.java:776) ... 08/05/05 11:06:41 Wrapped Exception: org.hibernate.QueryException: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and pr op.id.name= :name] at org.hibernate.hql.classic.PathExpressionParser.token(PathExpressionParser.java:167) at org.hibernate.hql.classic.WhereParser.doPathExpression(WhereParser.java:347) ... <and the list goes on> Does anyone knows what is wrong here? I think it is related to any modification. When I try to modify a page I get: Error number 3201 in 3: Exception while saving document Main.WebHome Wrapped Exception: Error number 3212 in 3: Exception while saving property tags of object Main.WebHome Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] com.xpn.xwiki.XWikiException: Error number 3201 in 3: Exception while saving document Main.WebHome Wrapped Exception: Error number 3212 in 3: Exception while saving property tags of object Main.WebHome Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiDoc(XWikiHibernateStore.java:457) at com.xpn.xwiki.store.XWikiCacheStore.saveXWikiDoc(XWikiCacheStore.java:97) ... Wrapped Exception: com.xpn.xwiki.XWikiException: Error number 3212 in 3: Exception while saving property tags of object Main.WebHome Wrapped Exception: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiProperty(XWikiHibernateStore.java:1151) at com.xpn.xwiki.store.XWikiHibernateStore.saveXWikiCollection(XWikiHibernateStore.java:776) ... Wrapped Exception: org.hibernate.QueryException: dereferenced: baseproper0_.id.id [select prop.name from com.xpn.xwiki.objects.BaseProperty as prop where prop.id.id = :id and prop.id.name= :name] at org.hibernate.hql.classic.PathExpressionParser.token(PathExpressionParser.java:167) at org.hibernate.hql.classic.WhereParser.doPathExpression(WhereParser.java:347) ... Thanks for any help I get. PS: To get everything working I had to add to hibernate.cfg.xml: <property name="hibernate.query.factory_class">org.hibernate.hql.classic.ClassicQueryTranslatorFactory</property> Anders Andersson

16 years, 5 months

[xwiki-users] Cannot rollback history

by Diego Ruotolo

Hi, I've just upgraded the XWiki of my company from version 0.9.840 to version 1.3.2 (latest stable version), using the "database copy" method to copy data. Everything is OK now, but I cannot rollback any page to a previous version in the history , even if the page is created in the new installation (1.3.2). I've got this error: WARN web.XWikiAction - Uncaught exception: Error number 3004 in 3: Exception while manipulating the archive for file new.jpg Wrapped Exception: Error number 2002 in 2: Error parsing xml Wrapped Exception: Error on line 1 of document : Content is not allowed in prolog. Nested exception: Content is not allowed in prolog. com.xpn.xwiki.XWikiException: Error number 3004 in 3: Exception while manipulating the archive for file new.jpg Wrapped Exception: Error number 2002 in 2: Error parsing xml Wrapped Exception: Error on line 1 of document : Content is not allowed in prolog. Nested exception: Content is not allowed in prolog. at com.xpn.xwiki.doc.XWikiAttachment.getAttachmentRevision(XWikiAttachment.java:513) at com.xpn.xwiki.XWiki.rollback(XWiki.java:6127) at com.xpn.xwiki.web.RollbackAction.action(RollbackAction.java:59) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:595) Wrapped Exception: com.xpn.xwiki.XWikiException: Error number 2002 in 2: Error parsing xml Wrapped Exception: Error on line 1 of document : Content is not allowed in prolog. Nested exception: Content is not allowed in prolog. at com.xpn.xwiki.doc.XWikiAttachment.fromXML(XWikiAttachment.java:327) at com.xpn.xwiki.doc.XWikiAttachment.getAttachmentRevision(XWikiAttachment.java:507) at com.xpn.xwiki.XWiki.rollback(XWiki.java:6127) at com.xpn.xwiki.web.RollbackAction.action(RollbackAction.java:59) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:595) Wrapped Exception: org.dom4j.DocumentException: Error on line 1 of document : Content is not allowed in prolog. Nested exception: Content is not allowed in prolog. at org.dom4j.io.SAXReader.read(SAXReader.java:482) at org.dom4j.io.SAXReader.read(SAXReader.java:365) at com.xpn.xwiki.doc.XWikiAttachment.fromXML(XWikiAttachment.java:325) at com.xpn.xwiki.doc.XWikiAttachment.getAttachmentRevision(XWikiAttachment.java:507) at com.xpn.xwiki.XWiki.rollback(XWiki.java:6127) at com.xpn.xwiki.web.RollbackAction.action(RollbackAction.java:59) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:595) Nested exception: org.xml.sax.SAXParseException: Content is not allowed in prolog. at org.apache.xerces.parsers.AbstractSAXParser.parse(AbstractSAXParser.java:1183) at org.dom4j.io.SAXReader.read(SAXReader.java:465) at org.dom4j.io.SAXReader.read(SAXReader.java:365) at com.xpn.xwiki.doc.XWikiAttachment.fromXML(XWikiAttachment.java:325) at com.xpn.xwiki.doc.XWikiAttachment.getAttachmentRevision(XWikiAttachment.java:507) at com.xpn.xwiki.XWiki.rollback(XWiki.java:6127) at com.xpn.xwiki.web.RollbackAction.action(RollbackAction.java:59) at com.xpn.xwiki.web.XWikiAction.execute(XWikiAction.java:197) at org.apache.struts.action.RequestProcessor.processActionPerform(RequestProcessor.java:431) at org.apache.struts.action.RequestProcessor.process(RequestProcessor.java:236) at org.apache.struts.action.ActionServlet.process(ActionServlet.java:1196) at org.apache.struts.action.ActionServlet.doGet(ActionServlet.java:414) at javax.servlet.http.HttpServlet.service(HttpServlet.java:690) at javax.servlet.http.HttpServlet.service(HttpServlet.java:803) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:290) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at com.xpn.xwiki.web.SetCharacterEncodingFilter.doFilter(SetCharacterEncodingFilter.java:117) at org.apache.catalina.core.ApplicationFilterChain.internalDoFilter(ApplicationFilterChain.java:235) at org.apache.catalina.core.ApplicationFilterChain.doFilter(ApplicationFilterChain.java:206) at org.apache.catalina.core.StandardWrapperValve.invoke(StandardWrapperValve.java:233) at org.apache.catalina.core.StandardContextValve.invoke(StandardContextValve.java:175) at org.apache.catalina.core.StandardHostValve.invoke(StandardHostValve.java:128) at org.apache.catalina.valves.ErrorReportValve.invoke(ErrorReportValve.java:102) at org.apache.catalina.core.StandardEngineValve.invoke(StandardEngineValve.java:109) at org.apache.catalina.connector.CoyoteAdapter.service(CoyoteAdapter.java:286) at org.apache.jk.server.JkCoyoteHandler.invoke(JkCoyoteHandler.java:190) at org.apache.jk.common.HandlerRequest.invoke(HandlerRequest.java:283) at org.apache.jk.common.ChannelSocket.invoke(ChannelSocket.java:767) at org.apache.jk.common.ChannelSocket.processConnection(ChannelSocket.java:697) at org.apache.jk.common.ChannelSocket$SocketConnection.runIt(ChannelSocket.java:889) at org.apache.tomcat.util.threads.ThreadPool$ControlRunnable.run(ThreadPool.java:690) at java.lang.Thread.run(Thread.java:595) I use a MySQL database (v. 5.0) and Tomcat (v. 6.0.16) as servlet container. Any suggestion? Thanks a lot! Diego

16 years, 5 months

[xwiki-users] theoretical question about a data model

by [Ricardo Rodriguez] Your EPEC Network ICT Team

Hi all, I am afraid the title of this thread is a bit pompous :-) In fact the question seems to me to be an entry level object oriented database design, but I am not able to make my mind about this. Your help will be greatly appreciated! Here a simple chart about the problem: http://mire.environmentalchange.net/~webmaster/pdr/dataModelpdR.png I have two ever-growing pools of data: providers and fishes. By following the ToDo and FAQ tutorials, I "easily" could create and instantiate the two classes but, how could I establish the relationship between providers and fishes? Thanks! Ricardo -- Ricardo Rodríguez Your EPEC Network ICT Team

16 years, 5 months

[xwiki-users] upload the accessories

by 孙进

When upload the accessories at the xwiki1.3 version, all Chinese will be deleted in file name.

16 years, 5 months

[xwiki-users] XEM installation

by Jim Dowson

After importing the xar for XEM 1.2M2 into an empty mysql database (per http://manager.xwiki.org/xwiki/bin/view/AdminGuide/InstallationMySQL) I am experiencing some odd behavior. I can register as a new user, however, when trying to re-login as the user, no indication is given that the login was successful. ( I can¹t get to any edit¹ menus, etc...) This also applies for Admin/admin ... I don¹t get a login failure but I don¹t get a change in the panels either. I did have some trouble getting the import to work (separate issue) - but it did eventually succeed or so it seemed. What¹s the best way to reset¹ the database (or otherwise overcome this failure)?

16 years, 5 months

[xwiki-users] Edit page sections

by Chris Phelan

Hi, I'm using XWiki Enterprise 1.3.2 are have a simple question. How do you do enable page section edits? If I look at something like the sandbox pages, in between the "Training Zone" heading and the "You can practice editing here..." text, there is a horizontal rule and just below this on the right is a pencil icon which links to http://<host>/xwiki/bin/edit/Sandbox/WebHome?xpage=wysiwyg&section=1 Examining the page source seems to show that this is the relevant code <a style='text-decoration: none;' title='Edit section: Training Zone' href='/xwiki/bin/edit/Sandbox/WebHome?xpage=wysiwyg&section=1'>edit</a> but I can't find how to demarcate sections within a page and get the 'edit button'. I've looked at the User guide, searched the documentation for "section", looked at the FAQs and searched the user forum. I found these posts http://www.nabble.com/Edit-sections-to14756105.html#a14756105 http://www.nabble.com/xwiki.section.edit-to13625877.html#a13625877 but I have xwiki.section.edit=1 set already, and I'm using level 1 and 2 titles. I still don't get the 'edit button' on my pages, but it is there on the sandbox pages. Am I missing something obvious? Many thanks Chris

16 years, 5 months

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xwiki-users May 2008