On Monday 24 December 2007 10:41:01 am Adrian Klaver wrote:
> On Monday 24 December 2007 10:18 am, Ed Leafe wrote:
> > On Dec 24, 2007, at 1:04 PM, Adrian Klaver wrote:
> > > Its not a problem with understanding the client-server model. I am
> > > also
> > > learning to use the python ORM Storm (https://
> > > storm.canonical.com/), which by
> > > the way is the first one I understand, after failed attempts at
> > > SqlAlchemy
> > > and SqlObjects. It is not three tier like Dabo, but does have a
> > > similar
> > > db-->obj layout. To help here is an obj class from Storm
> >
> > Be very careful in trying to match an ORM approach to the Dabo
> > approach. They may have superficial similarities, but they are quite
> > different in practice. Example: creating a new EmployeeBizobj doesn't
> > create a new Employee record, but would do so in an ORM.
> >
> > -- Ed Leafe
>
> Yes and no. Storm uses the concept of data stores. So in the code I showed
> the data store is sqlite_store=Store(sqlite). If I do :
> sqlite_store.find(EmployeeBasic,employee_id=1)
> I will get back an instance of EmployeeBasic where employee_id=1 should it
> exist.
> If I create an instance :
> emp_2=EmployeeBasic('init_values')
> then I get a new record, but at that point it only exists in memory. In
> order to change the data store I have to:
> sqlite_store.add(emp_2)
> sqlite_store.commit()
> At least from my point of view not all that different.
I see your point but the difference is important. You have to issue a new()
in Dabo to create the record otherwise all you have is a description of a
record (plus other stuff) when you created the instance. I realize that
sounds like minor thing because in the end results are the same. There are
other things you can do with an instance of a bizObject beyond the new().
--
John Fabiani
_______________________________________________
Post Messages to: [email protected]
Subscription Maintenance: http://leafe.com/mailman/listinfo/dabo-users
Searchable Archives: http://leafe.com/archives/search/dabo-users
This message: http://leafe.com/archives/byMID/dabo-users/[EMAIL PROTECTED]
