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[xwiki-users] [Vote] Resize images on the server side to reduce page loading time
by Marius Dumitru Florea 21 Sep '10

21 Sep '10

Hi devs, Currently the image plugin [1] allows us to create image thumbnails by specifying the image width and/or height in the query string of the image attachment download URL: /xwiki/bin/download/Spage/Page/image.jpg?width=100 I propose that we: (A) Use the image width and/or height (when they are specified in the image syntax using pixel unit) to resize the image on the server side. For instance: [[image:logo.jpg||width="100px"]] will be linked to /xwiki/bin/download/Spage/Page/logo.jpg?width=100 and [[image:logo.jpg||style="height: 50px; width: 70px"]] will be linked to /xwiki/bin/download/Spage/Page/logo.jpg?width=70&height=50 The image plugin also accepts a quality parameter that controls the compression quality when encoding jpeg images. The default value of this parameter (i.e. when not specified in the URL) is configurable. I propose we use 0.3 by default, 1 representing the best quality. (B) Add the ability to limit the image dimensions (preserving aspect ratio) when the image width and/or height are not specified in the image syntax (or when they are not using pixel unit). The width and height limit will be configurable and -1 by default (i.e. no limitation). For instance: image:logo.jpg will be linked to /xwiki/bin/download/Spage/Page/logo.jpg?width=1024 when width limit is 1024, and to /xwiki/bin/download/Spage/Page/logo.jpg?width=1024&height=768&keepAspectRatio=true when width limit is 1024 and height limit is 768. Note that in this case the image aspect ratio is preserved. The image is resized to best fit the limits. If the user want to bypass the limit he has to specify the image width/height in the image syntax. I'm +1 for both (A) and (B). WDYT? Thanks, Marius [1] http://svn.xwiki.org/svnroot/xwiki/platform/core/trunk/xwiki-core/src/main/…

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Re: [xwiki-users] XWiki Export, Page content as HTML?
by gordon＠yilaconsulting.com 21 Sep '10

21 Sep '10

Hi all Please excuse this first junk and see first email below. I am sending from my mobile so editing difficult Gordon -----Original Message----- From: users-owner(a)xwiki.org Sender: users-bounces(a)xwiki.org Date: Tue, 21 Sep 2010 15:16:47 To: <gordon(a)yilaconsulting.com> Subject: XWiki Export, Page content as HTML? You are not allowed to post to this mailing list, and your message has been automatically rejected. If you think that your messages are being rejected in error, contact the mailing list owner at users-owner(a)xwiki.org.

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[xwiki-users] How do I for divide one string I need only the part of the user name (Admin) instead of XWiki.Admin
by abrante 21 Sep '10

21 Sep '10

I recovered the value from $context.user Thanks -- View this message in context: http://xwiki.475771.n2.nabble.com/How-do-I-for-divide-one-string-I-need-onl… Sent from the XWiki- Users mailing list archive at Nabble.com.

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[xwiki-users] Migrating Xwiki
by Kaya Saman 21 Sep '10

21 Sep '10

Has anyone ever performed a migration that could give me some advice on how it's done and if what I asked about below is possible? I have checked out this: http://platform.xwiki.org/xwiki/bin/view/AdminGuide/Backup which suggests to backup the database but doesn't give any clue to Postgresql! Also is Xwiki content stored in a database or in the /webapps/xwiki instance?? So if I simply backed up and restored the database and copied the xwiki/ dir across to a different platform the system should work?? Even if going from Tomcat to Glassfish or so?? Thanks and regards, Kaya -------- Original Message -------- Subject: Migrating Xwiki Date: Fri, 17 Sep 2010 14:16:08 +0300 From: Kaya Saman <kayasaman(a)gmail.com> To: XWiki Users <users(a)xwiki.org> Hi, I'm wondering if it's possible to migrate Xwiki from one system to another?? I currently run Xwiki on a FreeBSD 8.0 RELEASE x64 platform with 4GB RAM in a dedicated FreeBSD Jail, however I'm having an issue with Java spinning up the CPU to 100% rendering Xwiki inoperable! If I migrate it would be from FreeBSD to either a dedicated FreeBSD system or an OpenSolaris based system on Nexenta. Currently I run Tomcat6 coupled with Postgresql, but would migrate to Glassfish and MySQL. Is it just a matter of backup the Xwiki from the web GUI then restore under Glassfish and convert database from Postgresql to MySQL then attach at other end? Or can I just simply dump the /webapps/xwiki folder into Glassfish or another instance of Tomcat? Thanks for any advice!! Regards, Kaya

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[xwiki-users] GeoGebra Applet is not working
by Erica Usui 20 Sep '10

20 Sep '10

Hello! GeoGebra Snippet<http://code.xwiki.org/xwiki/bin/view/Snippets/GeoGebraAppletFromAttachmentS…>didn't work here. It indicates an error. It can't open the sinusoida.ggb. Can anyone help me? -- Atenciosamente, Erica Usui.

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[xwiki-users] Impossible to create users and groups in a slave wiki of XEM 2.4
by Maxime Mathieu 20 Sep '10

20 Sep '10

Hi, Just done a fresh install of XEM2.4 and I encounter the following problem. In the templatexe wiki, it's impossible to add a new group or a new user (the Add button do nothing). If I edit the objects of an existing group (XWikiAllGroup for example), a warning is displayed : "Some objects from this document contain deprecated properties which were deleted from their respective classes." In fact, I detected that the *XWikiGroups and XWikiUsers classes are not defined* (they do not exist) in this templatexe wiki. In the main wiki, all is ok (and the XWikiGroups and Users classes are well defined). Nothing in the xwiki.log. Do you have any idea to help me ? Best regards, Maxime Mathieu

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[xwiki-users] XWiki users visibility
by Andrea Belli 20 Sep '10

20 Sep '10

Hi all, I missed something about XWiki users object visibility. I put in a wiki page the velocity script for implementing the Live table sample with XWikiUser objects. It works if I log in with Admin rights. If I log in with a user without Admin rights (Programming rights are ok) the live table shows no elements. Thank you a lot, Andrea

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[xwiki-users] Bad HQL queries
by Flavius Olaru 18 Sep '10

18 Sep '10

Hi, I've done a installation on my localhost (Windows XP machine) of XE 2.1.1, Tomcat 6 and MySQL 5.1. After this i wrote a bad hql query and executed it which brought MySQL to spyke the CPU usage to 100% and even more rendering both the localhost and database unusable. {{velocity}} #set($badhql = ", BaseObject obj, StringProperty stringprop, LargeStringProperty largestringprop where (doc.name like '%$text%' or doc.content like '%$text%') or (obj.name=doc.fullName and stringprop.id.id=obj.id and stringprop.value like '%$text%') or (obj.name=doc.fullName and largestringprop.id.id=obj.id and largestringprop.value like '%$text%')") #set($ok = $list.addAll(0, $xwiki.searchDocuments("$badhql"))) {{include document="XWiki.Results"/}} {{/velocity}} The bad thing is that $xwiki.searchDocuments brought me to this state (no programming rights.). Now my question is: Are there any remedies against this? MySQL configuration statements that prevent this kind of behaviour? -- Flavius Olaru

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[xwiki-users] nested types
by travis＠archive.org 18 Sep '10

18 Sep '10

Hi XWiki people, I need a "semantic" way to edit xml data. This is a project that could consume a very large portion of my future time, but in the near term I'm looking for a way to get this typed data into a wiki format so that the object graph can be clicked through and offsite links can be managed. First, I need to be able to have nested types. That is, a class has a field, the type for which is a class I have defined elsewhere. I don't see a way to do this in XWiki. Am I missing something? Seems like a typing system is incomplete without being able to have classes have attributes of defined types. Travis

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[xwiki-users] edit fails with xwiki/tomcat proxy from nginx
by linuskamb 17 Sep '10

17 Sep '10

Hello, All. I am trying to set up an xwiki/tomcat(5) installation that is proxied behind nginx (httpd). I was working with 2.4, but I am currently trying 2.5 snapshot 20100917.044441-172. I've got it all working internally, the the proxies and xwiki redirects work externally. But when I try to edit a page, I get 2 javascript errors : (I got 3 errors with 2.4) Z is undefined in prototype.js : 1877 and Permission denied for <external host> to get property Window.document from <internal host:port> at http://<external host>/xwiki/resources/js/xwiki/wysiwyg/xwe/2ED0D1BCD0DB002FD3C0404AF6E0AAA3.cache.html Don't know if this is nginx configuration or xwiki issue. If anyone has been successful running behind nginx I would love to hear any tips. I'm rather new to both. thanks a lot, Linus -- View this message in context: http://xwiki.475771.n2.nabble.com/edit-fails-with-xwiki-tomcat-proxy-from-n… Sent from the XWiki- Users mailing list archive at Nabble.com.

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