Re: [Gnumed-devel] gmDbObject

[Horst Herb]

Karsten Hilbert wrote:
> > I have added a generic base class for database objects ("gmDbObject.py" in 
> > "gnumed/client/python-common/"). 
>
> Horst, what is the difference/intended purpose of gmDbObject
> vs. gmDBCache ?

The cache object uses a singleton to share data used by many client 
widgets within the same process.

The gmDbObject is just an abstraction of backend access hiding a few 
more complexities (like the handling of readonly / read-write queries 
etc). In it's next version it will furthermore allow to hide a few of 
the complexities involved with highly normalized structures.

The cache object will soon be rewritten completely and derive the cached 
objects from gmDbObject. It will no longer cache just one row, but a 
dictionary of database objects as identified by their primary keys.

Horst