if you want all the SQLObject functions on results, you can use the
SelectResults plugin which is based on that of SQLObject:
http://www.sqlalchemy.org/docs/plugins.myt#plugins_selectresults
(should probably have a flag on ActiveMapper to turn SelectResults on
individual classes....)
but also, the Query object contains count() and count_by():
session.query(MyClass).count(MyClass.c.foo=='bar')
the assignmapper plugin, which is whats giving you "SomeClass.select
()" in the first place, is just proxying methods off to a Query
object, so I just added "count()" and "count_by()" to the list of
proxied methods in rev 1705, so you can just do:
MyClass.count(<optional criterion>)
the full list of things that are proxied by assignmapper can be seen
on lines 34 and 36 of sqlalchemy/ext/assignmapper.py .
On Jul 12, 2006, at 10:29 PM, Kevin Dangoor wrote:
> I'm writing a section about migrating a database from SQLObject to
> SQLAlchemy. I think I've found a minor usability wart: in SQLObject,
> you can do "SomeClass.select().count()". In SQLAlchemy with
> ActiveMapper, the equivalent is "list(Page.table.count().execute())[0]
> [0]", which is a little painful. (Straight up SQLAlchemy without
> ActiveMapper still seems a bit cumbersome, because Page.table is just
> replaced by "page" or whatever table instance you might have
> defined...)
>
> Am I missing some shortcut, or is this really the way to do this?
>
> Kevin
>
>
> --
> Kevin Dangoor
> TurboGears / Zesty News
>
> email: [EMAIL PROTECTED]
> company: http://www.BlazingThings.com
> blog: http://www.BlueSkyOnMars.com
>
>
>
>
>
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