[xwiki-dev] create a personal rss feed

[Vincent Massol]

Hi Mathieu,

That's great. What would be awesome would be if you could package  
this as an application (a XAR file) so that we can make it available  
on xwiki.org

Thanks
-Vincent

On Feb 27, 2007, at 5:39 PM, EMPTOZ Mathieu 310507 wrote:

> Ok here It Is :
>
>
>
>
>
> 1 - the creation of a RSS feed page: “PersonalRSS” in space “ Main”  
> with code :
>
>
>
> $response.setContentType("text/xml")
>
> #set($baseurl =  "http://${request.serverName}")
>
> #set($member = $request.uid)
>
> #set($title = "$member.replace('XWiki.','') Personal")
>
> #set($description = "Flux RSS Personal of $member.replace 
> ('XWiki.','')")
>
> #includeForm("XWiki.PersonalRssCode")
>
>
>
>
>
> 2 – the creation of the RSS Code page: “PersonalRssCode” in space  
> Xwiki with code :
>
>
>
> {pre}
>
>
>
> #if($member=="")
>
> #set($member="XWiki.XWikiGuest")
>
> #end
>
>
>
> #set($memberdoc = $xwiki.getDocument($member))
>
> #set($cobj = $memberdoc.getObject("XWiki.XWikiUsers"))
>
> #set($personalrss = $memberdoc.display("blogfeed","view",$cobj))
>
> #set($personalrss = $personalrss.replace("@","','"))
>
> #set($sql = "where doc.fullName in ('${personalrss}') order by  
> doc.date desc")
>
>
>
> #set($list = $xwiki.searchDocuments($sql ,0, 0))
>
> #set($rsvc= $xwiki.xWiki.getRightService())
>
>
>
> <rdf:RDF xmlns:rdf="http://www.w3.org/1999/02/22-rdf-syntax-ns#"  
> xmlns:xlink="http://www.w3.org/1999/xlink" xmlns="http://purl.org/ 
> rss/1.0/" xmlns:dc="http://purl.org/dc/elements/1.1/"  
> xmlns:wiki="http://purl.org/rss/1.0/modules/wiki/"
>
> encoding="ISO-8859-1" >
>
>
>
> <channel rdf:about="$baseurl">
>
> <title>$title</title>
>
> <link>$baseurl</link>
>
> <description>$description</description>
>
> <image rdf:resource="${baseurl}/xwiki/skins/default/logo.gif" />
>
> <dc:language>$doc.defaultLanguage</dc:language>
>
> <dc:rights>$xwiki.webCopyright</dc:rights>
>
> <dc:publisher>$doc.author</dc:publisher>
>
> <dc:creator>$doc.author</dc:creator>
>
>
>
> <items>
>
> <rdf:Seq>
>
> #foreach ($item in $list)
>
> #if($xwiki.hasAccessLevel("view", "${context.database}:${item}"))
>
> #set ($currentdoc = $xwiki.getDocument($item))
>
> <rdf:li rdf:resource="${baseurl}/xwiki/bin/view/${currentdoc.web}/$ 
> {currentdoc.name}" />
>
> #end
>
> #end
>
> </rdf:Seq>
>
> </items>
>
> </channel>
>
> <image rdf:about="${baseurl}/xwiki/skins/default/logo.gif">
>
>   <title>XWiki Logo</title>
>
>   <link>${baseurl}</link>
>
>   <url>${baseurl}/xwiki/skins/default/logo.gif</url>
>
> </image>
>
> #foreach ($item in $list)
>
> #if($xwiki.hasAccessLevel("view", "${context.database}:${item}"))
>
> #set($currentdoc = $xwiki.getDocument($item))
>
> #set($url = "${baseurl}/xwiki/bin/view/${currentdoc.web}/$ 
> {currentdoc.name}")
>
> #if($currentdoc.content.length() < 255)
>
> #set($length = $currentdoc.content.length())
>
> #else
>
> #set($length = 255)
>
> #end
>
> <item rdf:about="$url">
>
> #set($itemtitle = ${currentdoc.title})
>
> #if( $itemtitle!="" )
>
> <title>$itemtitle</title>
>
> #else
>
> <title>${currentdoc.web}.${currentdoc.name}</title>
>
> #end
>
> <link>$url</link>
>
> <description>
>
> #set($i = $currentdoc.author.indexOf(".")+1)
>
> This page (v$currentdoc.version) has been modified by  
> $currentdoc.author.substring($i) on $xwiki.formatDate 
> ($currentdoc.date,"MMMM dd, yyyy HH:mm:ss")
>
> </description>
>
> <dc:date>$xwiki.formatDate($currentdoc.date,"dd MMMM yyyy HH:mm:ss") 
> </dc:date>
>
> <dc:contributor>
>
> <rdf:Description link="">
>
> <rdf:value>$currentdoc.author</rdf:value>
>
> </rdf:Description>
>
> </dc:contributor>
>
> </item>
>
> #end
>
> #end
>
> </rdf:RDF>
>
> {/pre}
>
>
>
>
>
> 3 – the creation of the page which add and remove chosen pages :  
> “EditPersonalRSS”  in space “Xwiki” with code :
>
>
>
> #if($request.page)
>
>
>
> #set($newrsspage = "@${request.page}")
>
>
>
> ####### on cherche la liste
>
> #set($member = $context.getUser())
>
> #set($memberdoc = $xwiki.getDocument($member))
>
> #set($cobj = $memberdoc.getObject("XWiki.XWikiUsers"))
>
>
>
> ####### on recupere les pages existantes
>
> #set($oldrsspages = $memberdoc.display("blogfeed","view",$cobj))
>
>
>
> ######################################################################
>
> #if($request.action == "add")
>
>
>
> ####### on injecte la nouvelle
>
> #if($oldrsspages == "")
>
> #set($oldrsspages = "$newrsspage")
>
> #else
>
> #set($oldrsspages = "${newrsspage}${oldrsspages}")
>
> #end
>
>
>
> ######################################################################
>
> #elseif($request.action == "sub")
>
>
>
> ####### on enleve la page choisie
>
> #set($oldrsspages = $oldrsspages.replace("${newrsspage}","")))
>
>
>
> ######################################################################
>
> #end
>
>
>
> ####### on sauve
>
> $memberdoc.use("XWiki.XWikiUsers")
>
> $memberdoc.set("blogfeed",$oldrsspages)
>
> $memberdoc.save()
>
>
>
> ####### on redirige
>
> #$response.sendRedirect($xwiki.getURL(${request.page}))
>
>
>
> #else
>
> #$response.sendRedirect($xwiki.getURL("Main.WebHome"))
>
> #end
>
>
>
>
>
> 4 – Implement the links to this Personal RSS Feed
>
>
>
> The link to create the RSS Feed:
>
>
>
> <a href="$xwiki.getURL("Main.PersonalRSS", "view", "uid=$ 
> {context.user}&xpage=rdf")")">Personal RSS <img  
> src="$xwiki.getSkinFile("icons/black-rss-mini.png")"></a>
>
>
>
> And in the pages you want to be followed (you can add this code in  
> the “view.vm” page for example):
>
>
>
> #set($mdoc = $xwiki.getDocument(${context.user}))
>
> #set($cobj = $mdoc.getObject("XWiki.XWikiUsers"))
>
> #set($prss = $mdoc.display("blogfeed","view",$cobj))
>
> #if($prss.contains(${doc.fullName}))
>
> <a href="$xwiki.getURL("XWiki.EditPersonalRSS","view","page=$ 
> {doc.fullName}&action=sub")">Unfollow This Page</a>
>
> #else
>
> <a href="$xwiki.getURL("XWiki.EditPersonalRSS","view","page=$ 
> {doc.fullName}&action=add")">Follow This Page with RSS</a>
>
> #end
>
>
>
>
>
> 5 – Problems encountered
>
>
>
> -          I’m using the field “blogfeed”, the best is to create a  
> new property in the Object XWiki.XWikiUsers
>
> -          Everybody can follow the Personal RSS Feed of everybody  
> just by adding the Feed with a “Xwiki.login_of_user” instead of the  
> “${context.user}”
>
>
>
>
>
>
>
> That’s work fine, but I think it is possible to ameliorate my code.
>
>
>
> Regards, Mathieu
>
> ---------------------------------------------------
> Mathieu Emptoz
> CEA Cadarache
> DRFC/STEP
> XWiki's EFDA Remote Participation Administrator
> ---------------------------------------------------
>
>
>
>
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