Hi Ricardo,
On 21 Jul 2015 at 09:42:54, [IDIS Technical Secretariat] Ricardo Rodríguez
(ricardo.rodrig...@idisantiago.es(mailto:ricardo.rodrig...@idisantiago.es))
wrote:
> Hi!
>
> I think that after a some years using XWiki, I can now more or less
> understand the magic behind it: documents are "populated" with XWiki
> objects which make them behave in one or other way and content several
> flavours of information. Logic can be also implemented in XWiki pages
> facilitating different kinds of outputs. Thus, a XWiki user is "only" a
> XWiki document where we instantiate XWikiUsers class. A XWiki group
> is"only" a document where we instantiate XWikiGroups class.
Exactly! You perfectly understand how XWiki works :)
> It is really simple to use XWiki group as metaphor for many of the items we
> have to deal with in the day-by-day managerial work: a research project
> team, a consolidated research group or scientific publication authorship
> can all be represented/stored as a XWiki group. That is a really simple
> operation.
>
> But what I'm not able to figure out how to store properties that
> characterise a given combination of user and group.
>
> Please, allow me to present three cases of use:
>
> 1) A person (represented by a XWiki user) can participate in several
> research project teams with different roles (main researchers, teammate,
> lab responsible, task responsible...)
>
> 2) A person (represented by a XWiki user) can participate in the authorship
> of several scientific publications, but he/she will appear in a different
> position in the authors list. And order matters in this case!
>
> 3) A person can participate in two scientific publications with different
> filiations, let's call them different *hats*.
>
> Case 1) is illustrated by...
>
> http://atriumkm.idisantiago.es/bin/USiRModel/Projects
>
> Red user participates in all three projects, but only in one of them act as
> leader (a star on the chest). Light blue user participates in two projects,
> as a leader in one of them. But her/his leadership comes from a different
> source (different color of the star)
>
> ...and cases 2) and 3) by...
>
> http://atriumkm.idisantiago.es/bin/USiRModel/Publications
>
> Red user participates in all three publications BUT in a different position
> (the order matters!) and on behalf of a different meta-organisation (white
> or black hats).
>
> A couple of simple questions:
>
> a) If I use a XWiki group to represent a publication, how could I store the
> position of each author if authorship is represented by the membership of
> that group?
>
> b) Red user belongs to at least five different groups: three publications
> and two hats. How could I represent the hat associated with red user in
> publications 02 and 03?
>
> I ended up calling this concept "user alias": a user alias is a set of
> XWiki documents only one of which includes an instance of XWikiUsers class.
>
> I'm sure there is some "strong concept" in software design and data
> modeling that apply to what I'm looking for, but I've not enough formation
> as for looking for it. Your insights will be really welcome!
>
> Please, does this make any sense for you? Any idea?
TBH I haven’t fully parsed your need yet but I can offer some general ideas:
* You can create some custom xclass to represent your concepts and add one
xobject of that xclass in the user documents. Then you can perform queries on
that to list whatever you wish.
* Similary if you wish to have metadata about groups, you can add an xobject of
some custom xclass in the group documents.
Let me know if that helps.
Thanks
-Vincent
> Thank you so much,
>
> Ricardo
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