Re: [Evolution-hackers] Communication with e-d-s

[chen <pchenthill novell com>]

On Tue, 2005-10-18 at 09:14 +0200, Dick Kniep wrote:
> Anyone?
> 
> Op zaterdag 15 oktober 2005 20:59, schreef Dick Kniep:
> > Hi list,
> >
> > This is my first post to this list, and I am definitely no wizard in Bonobo
> > or evolution. On the other hand I have done a fair amount of searching on
> > the Internet, so I hope you have an answer to this fairly basic question I
> > have.
> >
> > We have developed a big application in Python, Postgresql, OpenOffice,
> > taskjuggler and other goodies. Now we want to connect to an agenda, and I
> > have chosen evolution because it connects well to all the real world
> > servers including ms-exchange which is being used by the vast majority of
> > our customers.
> >
> > What we want is:
> >
> > 1. Read the iCal data from evolution, connecting a certain appointment in
> > evolution to a DB item based on the UID number in the iCal. This should be
> > possible under all circumstances (user uses imap, webcal or any other way
> > of storing the calendar data).
The calendar should be imported into evolution for viewing it as of now.
An ECal client should be created first with the help of ESource (Gconf
settings associated with each calendar). Then the calendar should be
loaded. The specific appointment can be retrieved using e_cal_get_object
based on UID and RID.

Please refer to http://go-evolution.org/EDS_Architecture#Calendar .
> >
> > 2. When a user pushes a certain button in our application evolution should
> > fire up, and the user should be able to enter the appointment (so only the
> > appointment screen should start), next our application should receive the
> > UID of the newly created appointment, so that the appointment-id can be
> > stored in the database.
Evolution calendar can be started through the command line invocation
'evolution -c calendar'.
A query should be started using e_cal_start_query, signals such as
objects_added, objects_removed, objects_modified should be connected to
the query object and EDS notify the clients when the corresponding
operation happens in the backend.
> >
> > 3. It is necessary that with the appointment also resources like a room, a
> > beamer or anything else, are committed, and the user must be able to look
> > at the free/busy information of these resources.
Do you plan to use your application for looking up freebusy information
or through evolution ?

> >
> > Now I think it is best to use bonobo to connect to the e-d-s. But because I
> > have no experience in doing this, and do not program in C, (only Python), I
> > would be very happy if someone could give me an example on how to do this.
> > The only documentation I found gives .h files for use in C, and although
> > they may be perfectly clear for experienced C programmers, for me they are
> > hullabaloo.
It already uses bonobo to communicate with EDS, ECal Apis wrap the
bonobo layer. 

> >
> > I promise that if I get this stuff going, I will write a how-to for the
> > Python folks.
> >
> > Cheers,
> >
> > D.Kniep
> > _______________________________________________
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