topic Re: web 2.0 style tagging in Alfresco Archive

web 2.0 style tagging

aznk — Thu, 14 Dec 2006 10:44:56 GMT

Hi,I've been using the TaggingSample to add a tagging aspect. I can perform advanced search on tags by modifying xml file.Now I would like to add a tag cloud like http://del.icio.us/tag/ or http://www.flickr.com/photos/tags/What's the best way to do this ? By using one of those APIS :http://del.icio

Re: web 2.0 style tagging

gavinc — Thu, 14 Dec 2006 20:04:14 GMT

You would have to write a custom JSF component that performs the relevant queries to obtain all the tag values used and produce a count of each one.

You'd then have to manually generate the tag cloud or use an open source library providing this functionality and incorporate into the component.

This component could then be placed on any page you wish.

Re: web 2.0 style tagging

nico — Fri, 15 Dec 2006 11:21:04 GMT

Hi,

I tried to do this myself too using a code I made in an other ECM system.
My problem is : how do I count all tag use ?
In sql I would to something using count + group by, but how do I do that with Lucene ?

BTW: will cql support "group by," "distinct", "count" etc… ?

Thanx,
Nico

Re: web 2.0 style tagging

aznk — Wed, 20 Dec 2006 10:28:46 GMT

Hi,
Thanks for your answer.
In fact I'm completely new to JSF and have no idea of how it works.
Would it be possible to give me some hints/documentation of how to get started with this JSF component and queries (we shoud use Lucene?) ?
I only saw this on component library but I have no clear idea of how it works : http://wiki.alfresco.com/wiki/Component_Library
Thanx.

Re: web 2.0 style tagging

aznk — Tue, 09 Jan 2007 10:22:13 GMT

how do we retrieve tags with lucene queries ? I've defined tags as a custom aspect.

Re: web 2.0 style tagging

gavinc — Tue, 09 Jan 2007 20:53:26 GMT

Using the TaggingSample simply adds the "tag:tags" property to the node in question.

The Search guide on the wiki should give you all the information you need to search on text properties: http://wiki.alfresco.com/wiki/Search

You'll need to do have something like @tag\:tags:"some-text" in your query string.

Re: web 2.0 style tagging

aznk — Wed, 10 Jan 2007 09:01:23 GMT

In the wiki I found out how to retrieve all nodes that have this aspect, but in fact I need to retrieve all values of these nodes, that is to say all tags values.
How can I do that ?

Re: web 2.0 style tagging

aznk — Fri, 26 Jan 2007 10:02:26 GMT

What's the best way to query values result ?
I would have to query for all tags values, group them by similar tags and make a count of them. This would be easy to do using sql with group by and count. How can we do that in alfresco ? I was the cql language but I'm not sure it is supported.
I could do it manually by iterating over all values but it would have performance issues…