Re: Proposing Tracker for inclusion into GNOME 2.18

[Jamie McCracken <jamiemcc blueyonder co uk>]

Ross Burton wrote:
> On Wed, 2006-10-25 at 11:12 +0100, Jamie McCracken wrote:
> > > > With everything mapped 1:1 you can then use RDF query to search them
> > > Why would you need a 1:1 mapping to do a query?  A query for "contacts
> > > with an email of jamiecc blueyonder co uk" should be possible
> > > independent of the number of email addresses a contact can have.
> > we need the 1:1 mapping to get/set the values. Whatever we implement we 
> > must have a unique metadata name for a particular service in order to do 
> > that otherwise getting or setting a value would be impossible.
> >
> > One problem with metadata relationships is that some metadata like in 
> > the above case would only be searchable like Contact.JabberID as the 
> > actual storage would be in Contact.WorkJabberID or Contact.HomeJabberID 
> > so it might get confusing for developers if they try and get the value 
> > of Contact.JabberID which would be NULL.
>
> A real world, physical example:
>
> Name: Ross Burton
> Email address (personal): ross burtonini com
> Email address (personal): ross burton gmail com
> Email address (work): ross openedhand com
>
> How would you store this in Tracker?  If we declare that Tracker Contact
> objects are *not* vCard clones I can handle dropping the personal/work
> annotations for now.

would suggest:

Contact.HomeEmailAddress : ross burtoni com;ross burton gmail com
Contact.WorkEmailAddress : ross openedhand com

note using semicolon as delimiter so contents would need to be escaped 
for the semicolon. I guess standardising on semicolon delimiters might 
be a good idea?


--
Mr Jamie McCracken
http://jamiemcc.livejournal.com/